Method for indirectly evaluating cardiopulmonary endurance and energy metabolism and predicting exercise performance

Abstract

The invention discloses a method for indirectly evaluating cardiopulmonary endurance and energy metabolism and predicting exercise performance, and belongs to the technical field of exercise evaluation. The maximum oxygen uptake speed of the running machine and the maximum oxygen uptake of the running machine are obtained through testing of the running machine, and the evaluation value corresponding to the cardiopulmonary endurance is inquired through the maximum oxygen uptake of the running machine; the slow muscle proportion is obtained based on the maximum oxygen uptake speed of the treadmill, and the energy metabolism of the treadmill at any constant running speed is evaluated through the slow muscle proportion; and the oxygen-free threshold speed of the field can be obtained through the slow muscle proportion, so that the competition results of different competitions can be predicted. The treadmill is adopted for running, operation is easy, physical strength consumption is low, prediction is accurate, the method is suitable for requirements of different crowds, scientific reference basis is provided for a fitness scheme and assessment of the exercise fitness effect, and the exercise evaluation method is of great significance.

Description

Technical Field

[0001] The invention relates to the technical field of sports evaluation, and in particular to a method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance. Background Art

[0002] In fact, the process of life is the process of metabolism. The human body releases energy to maintain basic life movements such as breathing and heartbeat by taking in oxygen and burning sugar, fat and other substances in the body, and drives muscles to drive bones to move and excrete metabolic waste such as carbon dioxide from the body. This process is mainly completed by the blood circulation system and the respiratory circulation system.

[0003] In long-term exercise of low to high intensity involving most large muscle groups, the energy required for exercise mainly comes from aerobic metabolism in skeletal muscle. In aerobic metabolism of skeletal muscle, in addition to the physiological functions of skeletal muscle itself, the physiological functions of the respiratory system and cardiovascular system have an important impact on the ability to continue exercising. Therefore, this type of exercise ability is often referred to as sports cardiopulmonary endurance. Sports cardiopulmonary endurance is closely related to human life and health. In aerobic exercise of the same distance, the faster the speed, the more oxygen is needed per unit time. We usually use the maximum amount of oxygen that can be taken in per kilogram of body weight per minute, that is, the maximum oxygen uptake, to evaluate cardiopulmonary endurance. Generally speaking, the better the cardiopulmonary endurance, the greater the maximum oxygen uptake.

[0004] Running on an indoor treadmill is not affected by weather and environment, and you can exercise at any time. If you can evaluate the subjects' cardiopulmonary endurance, energy metabolism, predict the performance of various running distances and the probability of suffering from adult chronic diseases through treadmill running, and provide a scientific reference for formulating targeted fitness plans and evaluating the effects of exercise and fitness, it will be of great significance to improving people's health level and athletic ability. Summary of the invention

[0005] The purpose of the present invention is to provide a method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance, so as to at least solve some of the above technical problems.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance, comprising the following steps:

[0008] S1. Obtain the average heart rate of the test subject at different running speeds on the treadmill through treadmill testing;

[0009] S2, obtaining a treadmill running speed-heart rate curve equation based on the average heart rate at different running speeds on the treadmill;

[0010] S3, obtaining the treadmill maximum oxygen uptake speed and the treadmill maximum oxygen uptake based on the treadmill running speed-heart rate curve equation, and querying the evaluation value of the treadmill maximum oxygen uptake corresponding to the cardiopulmonary endurance in the evaluation chart of the maximum oxygen uptake of women / men of different ages;

[0011] S4. Based on the relationship between the running speed and the air resistance, the field running speed and the field maximum oxygen uptake speed corresponding to any running speed on the treadmill are obtained;

[0012] S5. Calculate the slow muscle ratio by using the field maximum oxygen uptake speed and the field 50m running time of the tester, and then obtain the treadmill anaerobic threshold speed, the treadmill maximum fat oxidation speed, the field anaerobic threshold speed and the field maximum fat oxidation speed by using the slow muscle ratio;

[0013] S6. Based on the maximal oxygen uptake speed of the treadmill, the energy consumption rate of the treadmill at a constant speed at any running speed is obtained, and then the sugar consumption rate and the fat consumption rate are calculated according to the energy consumption rate;

[0014] S7. Calculate the ordinary marathon speed of the test subject based on the field anaerobic threshold speed, and then predict the marathon results based on the marathon distance and the ordinary marathon speed; or calculate the speed of other competitions except the marathon based on the test subject's field 200m running parameters, the ordinary marathon speed and the distance of the competition to be predicted, and then predict the competition results based on the distance of the competition to be predicted and the corresponding competition speed.

[0015] Further, the S1 includes: S11, input the tester's information, including name, gender, age, height, weight, resting heart rate and maximum heart rate, and calculate the starting heart rate and ending test heart rate through the resting heart rate and maximum heart rate; S12, divide the treadmill test into three stages, namely, warm-up stage, test stage and end of test stage, and obtain the real-time heart rate of the tester in each stage; the running speed in the warm-up stage is 6km / h, and the time is 3 minutes; the running speed in the test stage is 6km / h and increases by 1km / h per minute, and the time for each running speed is 1 minute; the end of the test stage is when the real-time heart rate is greater than the end test heart rate or the running speed reaches 16km / h; in the test stage, if the real-time heart rate is greater than or equal to the starting heart rate, start recording the current real-time heart rate and the current running speed corresponding to the current real-time heart rate, calculate the average real-time heart rate of any running speed in the last 10 seconds within 1 minute, and record the average real-time heart rate and running speed.

[0016] Furthermore, the calculation formula for starting to record heart rate is:

[0017] HRstart=(HRmax-HRstatic)*0.55+HRstatic;

[0018] The calculation formula for the end test heart rate is:

[0019] HRstop=(HRmax-HRstatic)*0.80+HRstatic;

[0020] In the formula, HRstart indicates the start of heart rate recording, HRstop indicates the end of heart rate testing, HRmax indicates the maximum heart rate, and HRstatic indicates the resting heart rate.

[0021] Further, the S2 includes: S21, recording the current real-time heart rate and the current running speed corresponding to the current real-time heart rate as a set of test data, and recording the average real-time heart rate of any running speed in the last 10 seconds within one minute and the running speed as a set of test data, and the test data is not less than two sets; S22, fitting the running speed-heart rate curve equation of the treadmill with the real-time heart rate in different test data as the x value and the corresponding running speed as the y value:

[0022] Yspeed=Kh*Xhr+Br;

[0023] Xhr is the real-time heart rate, Yspeed is the running speed when the real-time heart rate is Xhr, Kh is the curve coefficient, and Br is the curve intercept;

[0024] The calculation formula of the curve coefficient Kh is:

[0025] Kh=(Sum_V_HR-N*P_Sp_Hr) / (Sq_HR-N*Avg_HR 2 );

[0026] N is the number of test data groups, Sum_V_HR is the sum of the products of running speed and real-time heart rate in all test data, P_Sp_Hr is the product of the average speed of all running speeds and the average heart rate of all real-time heart rates, Sq_HR is the sum of the squares of all real-time heart rates, Avg_HR 2 is the square of the average heart rate of all real-time heart rates;

[0027] The calculation formula of the curve intercept Br is:

[0028] Br = Avg_Speed ​​- Kh * Avg_HR;

[0029] Avg_Speed ​​is the average speed of all running speeds, and Avg_HR is the average heart rate of all real-time heart rates.

[0030] Further, the S3 includes: S31, calculating the treadmill maximum oxygen uptake speed according to the maximum heart rate and the treadmill running speed-heart rate curve equation, and then calculating the treadmill maximum oxygen uptake from the treadmill maximum oxygen uptake speed; S32, according to the tester's gender, age and the calculated treadmill maximum oxygen uptake, querying the evaluation value of the treadmill maximum oxygen uptake for evaluating cardiopulmonary endurance under the current gender and age from the evaluation chart of the maximum oxygen uptake of women / men of different ages, wherein the evaluation values ​​include excellent, good, fair, weak and very weak;

[0031] Preferably, the calculation formula for the treadmill maximum oxygen uptake speed is:

[0032] V V 2 max=Kh*HRmax+Br;

[0033] V V 2 max is the maximal oxygen uptake speed of the treadmill, Kh and Br are the curve coefficient and curve intercept, respectively, and HRmax is the maximum heart rate;

[0034] Preferably, the calculation formula for the treadmill maximum oxygen uptake is:

[0035] VO 2 max=0.9*(3.5+10 / 3*vVO 2 max);

[0036] VO 2 max is the maximum oxygen uptake on the treadmill;

[0037] Furthermore, the calculation formula for the field running speed corresponding to any running speed on the treadmill is:

[0038] V field =0.96*V;

[0039] V is the running speed on the treadmill, V field The field running speed corresponds to the running speed on the treadmill;

[0040] The formula for calculating the maximum oxygen uptake rate of the venue is:

[0041] V V 2 max field =0.96*vVO 2 max;

[0042] V V 2 max field is the maximum oxygen uptake rate at the venue, vVO 2 max is the maximal oxygen uptake speed of the treadmill.

[0043] Furthermore, the calculation formula of the slow muscle ratio is:

[0044] R sm =1.6-25128÷t 50 ÷(vVO 2 max field ×147.6+661.5);

[0045] R sm is the slow muscle ratio, t 50 vVO is the tester's 50m running time on the field. The 50m running time on the field is actually measured by running 50m on the field, in seconds. 2 max field is the maximum oxygen uptake rate of the venue;

[0046] The calculation formula of the treadmill anaerobic threshold speed is:

[0047] vAT=vVO 2 max×vAT Fatcor ;

[0048] The calculation formula of the field anaerobic threshold speed is:

[0049] Vt field =vVO 2 max field ×vAT Fatcor ;

[0050] The calculation formula for the maximum fat oxidation speed of the treadmill is:

[0051] vFat Max =vVO 2 max×vFatMax Fatcor ;

[0052] The calculation formula for the maximum fat oxidation rate of the site is:

[0053] vFatMax field =vVO 2 max field ×vFatMax Fatcor ;

[0054] vAT is the anaerobic threshold speed of the treadmill, vVO 2 max is the maximum oxygen uptake speed of the treadmill, vAT field is the field anaerobic threshold velocity, vVO 2 max field is the maximum oxygen uptake rate at the venue, vAT Fatcor is the anaerobic threshold coefficient, vFat Max vFatMax is the maximum fat oxidation rate on the treadmillfield is the maximum fat oxidation rate of the site, vFatMax Fatcor is the maximum fat oxidation intensity coefficient;

[0055] The anaerobic threshold coefficient is obtained by the slow muscle ratio, and the calculation formula is:

[0056] Vt Fatcor =0.3333×R sm +0.5833;

[0057] The maximum fat oxidation intensity coefficient is obtained by the slow muscle ratio, and the calculation formula is:

[0058] vFatMax Fatcor =0.3333×R sm +0.3833.

[0059] Furthermore, the calculation formula of the energy consumption rate is:

[0060] EE_v = bw*V;

[0061] V is the running speed on the treadmill, EE_v is the energy consumption rate corresponding to the running speed on the treadmill, and bw is the weight of the tester;

[0062] The calculation formula of the sugar consumption rate is:

[0063] CHO_v=EE_v*Factor_CHO / 4.19;

[0064] CHO_v is the sugar consumption rate corresponding to the running speed on the treadmill, and Factor_CHO is the sugar consumption ratio coefficient;

[0065] The calculation formula of the fat consumption rate is:

[0066] FAT_v = EE_v * FactorFAT / 9.3;

[0067] FAT_v is the fat consumption rate corresponding to the running speed on the treadmill, and FactorFAT is the fat consumption coefficient;

[0068] The sugar consumption ratio coefficient and fat consumption coefficient are both obtained through the respiratory quotient at the maximum oxygen uptake speed of the treadmill;

[0069] The calculation formulas of the sugar consumption ratio coefficient and the fat consumption coefficient are respectively:

[0070] Factor_CHO=3.4016*RER-2.3909;

[0071] Factor_FAT=-3.4013*RER+3.3906;

[0072] RER is the respiratory quotient at the maximum oxygen uptake speed of the treadmill. When the respiratory quotient is greater than or equal to 1.0, Factor_CHO = 1, and when the respiratory quotient is greater than or equal to 1.0, Factor_FAT = 0;

[0073] The calculation formula of the respiratory quotient at the treadmill maximum oxygen uptake speed is:

[0074] RER=0.6239x' 2 -0.2705x'+0.7872;

[0075] x' is the percentage of any running speed to the treadmill's VO2max speed.

[0076] Furthermore, the marathon race is a full marathon race, and the calculation formula for the average person's marathon speed is:

[0077] Vt field_p＝ vT field *0.9;

[0078] vT field_p is the average person’s marathon pace, vAT field is the field anaerobic threshold speed;

[0079] The calculation formula for the marathon results is:

[0080] t 42195 =42.195 / vAT field_p ;

[0081] t 42195 is the marathon result; 42.195 is the marathon distance, 42.195km.

[0082] Further, the calculation of the race speed of other races except the marathon race based on the tester's field 200m running parameters, ordinary people's marathon speed and the race distance to be predicted includes the following operations: A1, obtaining the tester's field 200m running speed; A2, obtaining the tester's ordinary people's distance attenuation constant from the field 200m running speed and the ordinary people's marathon speed; A3, calculating the proportional coefficient of the ordinary people's running speed per meter to the 200m running speed; A4, obtaining the race speed of the race distance to be predicted from the race distance to be predicted, the field 200m running speed, the ordinary people's distance attenuation constant and the proportional coefficient of the ordinary people's running speed per meter to the 200m running speed, and finally predicting the race results from the race distance to be predicted and the corresponding race speed;

[0083] The calculation formula for the 200m running speed on the field is:

[0084] V 200 =200 / t200 *3600 / 1000;

[0085] V 200 is the running speed of 200m in the field, in km / h, 200 is the running distance of 200m, t 200 200m running time for the venue;

[0086] Preferably, since the average of the average 50m running speed of ordinary people on the field is equal to the average of the 200m running speed, the calculation formula for the 200m running speed on the field can also be:

[0087] V 200 =50 / t 50 *3600 / 1000;

[0088] 50 is the running distance of the field, which is 50m. 50 50m running time for the venue;

[0089] The calculation formula of the ordinary person distance attenuation constant is:

[0090] np=log 210.975 (vAT field_p / V 200 );

[0091] np is the average person distance decay constant;

[0092] The calculation formula of the ratio coefficient of the average person's running speed per meter to the 200m running speed is:

[0093] Kp 200 =1 / 200^(-0.134)=2.0378;

[0094] The calculation formula for the race speed of the race distance to be predicted is:

[0095] V S =Kp 200 *S^np*V 200 ;

[0096] V S is the race speed of the race distance to be predicted, S is the race distance to be predicted;

[0097] The calculation formula for the competition results is:

[0098] t S =S / V S ;

[0099] t S For competition results.

[0100] Compared with the prior art, the present invention has the following beneficial effects:

[0101] The present invention adopts a treadmill for running, and the running test based on the treadmill can realize the evaluation of individual cardiopulmonary endurance and energy metabolism, and can also complete the performance prediction of different distance exercises, with simple operation, low physical energy consumption, accurate prediction, and suitable for the needs of different groups of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0102] Figure 1 The figure is a flow chart of the method of the present invention.

[0103] Figure 2 This is an evaluation chart of maximum oxygen uptake for women of different ages.

[0104] Figure 3 This is an evaluation chart of the maximum oxygen uptake of men of different ages. DETAILED DESCRIPTION

[0105] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0106] like Figure 1 As shown, the present invention provides a method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance, comprising the following steps:

[0107] S1. Obtain the average heart rate of the test subject at different running speeds on the treadmill through treadmill testing;

[0108] S2, obtaining a treadmill running speed-heart rate curve equation based on the average heart rate at different running speeds on the treadmill;

[0109] S3, obtaining the treadmill maximum oxygen uptake speed and the treadmill maximum oxygen uptake based on the treadmill running speed-heart rate curve equation, and querying the evaluation value of the treadmill maximum oxygen uptake corresponding to the cardiopulmonary endurance in the evaluation chart of the maximum oxygen uptake of women / men of different ages;

[0110] S4. Based on the relationship between the running speed and the air resistance, the field running speed and the field maximum oxygen uptake speed corresponding to any running speed on the treadmill are obtained;

[0111] S5. Calculate the slow muscle ratio by using the field maximum oxygen uptake speed and the field 50m running time of the tester, and then obtain the treadmill anaerobic threshold speed, the treadmill maximum fat oxidation speed, the field anaerobic threshold speed and the field maximum fat oxidation speed by using the slow muscle ratio;

[0112] S6. Based on the maximal oxygen uptake speed of the treadmill, the energy consumption rate of the treadmill at a constant speed at any running speed is obtained, and then the sugar consumption rate and the fat consumption rate are calculated according to the energy consumption rate;

[0113] S7. Calculate the ordinary marathon speed of the test subject based on the field anaerobic threshold speed, and then predict the marathon results based on the marathon distance and the ordinary marathon speed; or calculate the speed of other competitions except the marathon based on the test subject's field 200m running parameters, the ordinary marathon speed and the distance of the competition to be predicted, and then predict the competition results based on the distance of the competition to be predicted and the corresponding competition speed.

[0114] The present invention adopts a treadmill for running, realizes the evaluation of cardiopulmonary endurance and energy metabolism based on the running test of the treadmill, and can also complete the performance prediction of different distance exercises, has simple operation, low physical energy consumption, accurate prediction, and is suitable for the needs of different groups of people.

[0115] Preferably, the S1 includes: S11, inputting the tester's information into the test system, including name, gender, age, height, weight, resting heart rate (HRstatic), maximum heart rate (HRmax), and calculating the heart rate at the start of recording and the heart rate at the end of the test through the resting heart rate and the maximum heart rate, and the test system is a PC; S12, dividing the treadmill test into three stages, a warm-up stage, a test stage, and a test end stage, and obtaining the real-time heart rate of the tester in each stage; the warm-up stage The running speed of the first and second segments is 6 km / h, and the time is 3 minutes; the running speed of the test stage is 6 km / h and increases by 1 km / h per minute, and the time of each running speed is 1 minute; the end point of the test stage is when the real-time heart rate is greater than the end test heart rate or the running speed reaches 16 km / h; in the test stage, if the real-time heart rate is greater than or equal to the start recording heart rate, start recording the current real-time heart rate and the current running speed corresponding to the current real-time heart rate, calculate the average real-time heart rate of any running speed in the last 10 seconds within 1 minute, and record the average real-time heart rate and running speed.

[0116] In S11, resting heart rate refers to the heart rate of a person at rest, which is usually 60 bpm by default. Maximum heart rate is an important basis for indirectly calculating maximum oxygen uptake. If the tester knows his or her maximum heart rate, he or she can enter it directly. Otherwise, the general formula HRmax=207-0.7*age (age) is used to calculate.

[0117] More preferably, the calculation formula for starting to record the heart rate is:

[0118] HRstart=(HRmax-HRstatic)*0.55+HRstatic;

[0119] The calculation formula for the end test heart rate is:

[0120] HRstop=(HRmax-HRstatic)*0.80+HRstatic;

[0121] In the formula, HRstart indicates the start of heart rate recording, HRstop indicates the end of heart rate testing, HRmax indicates the maximum heart rate, and HRstatic indicates the resting heart rate.

[0122] The heart rate at the beginning of recording refers to 55% of the reserve heart rate. In the incremental test load, the heart rate of the tester will increase with the increase of the treadmill speed. When the heart rate is greater than or equal to the heart rate at the beginning of recording, the test system will calculate the heart rate average value of the last 10 seconds of the speed level as the average heart rate of the speed level, which is used as the basic effective heart rate parameter for the later cardiopulmonary endurance evaluation. The heart rate at the end of the test refers to 80% of the reserve heart rate. As the speed of the treadmill increases, the heart rate of the tester also increases. When the heart rate at the end of the test is reached, the test system will stop the test. As for the reason for starting to record the heart rate when the heart rate reaches 55% of the reserve heart rate, it is that when it is below 55% of the reserve heart rate, the heart's stroke volume (=stroke volume × heart rate) does not reach the maximum. The increase in stroke volume per minute caused by the increase in exercise load is due to the effect of the joint increase of stroke volume and heart rate. At this time, the heart rate and exercise load are not linearly related. Only when the heart rate reaches 55% of the reserve heart rate, the stroke volume reaches its maximum. The increase in stroke volume per minute depends only on the increase in heart rate. At this time, the increase in heart rate and the increase in exercise load are linearly related. As for ending the maximum heart rate with 80% of the reserve heart rate, it is mainly to reduce the exercise burden of the subjects and for safety considerations.

[0123] After the tester's information is entered, the test system will automatically generate the start heart rate and end heart rate based on the input resting heart rate and maximum heart rate to control the recording of subsequent test data and the end of the test. At the same time, the maximum oxygen uptake can be calculated based on the maximum heart rate and weight, and the cardiopulmonary endurance of people of different ages can be evaluated based on age and gender.

[0124] In the described S12, the slope of the treadmill is set to 0%. Before the treadmill test, the tester wears a Bluetooth heart rate belt to obtain the real-time heart rate of the tester. The Bluetooth heart rate receiver is connected to the test system, and the test system reads the real-time heart rate of the Bluetooth heart rate belt once per second and records it. The treadmill test is divided into three stages, a warm-up stage, a test stage, and a test end stage. The running speed of the warm-up stage is 6km / h, and the time is 3 minutes. At this time, the heart rate of the tester is lower than the heart rate at the beginning of recording, and the test system does not record the heart rate data. The running speed of the described test stage is 6km / h and increases by 1km / h per minute. The time of each running speed is 1 minute, for example, 6km / h (1 minute), 7km / h (1 minute), 8km / h (1 minute), 9km / h (1 minute), 10km / h (1 minute), etc. As the running speed increases, the tester's heart rate also increases. When the real-time heart rate is greater than or equal to the heart rate at the start of recording, the current real-time heart rate and the corresponding running speed Vspeed are recorded and the average heart rate HRavg of the last 10 seconds in the next minute at the current running speed is calculated, that is, the average heart rate of the last 10 seconds in one minute at the next running speed, and the average real-time heart rate and running speed are recorded. As the test progresses, the tester's heart rate continues to increase. When the real-time heart rate is greater than the end test heart rate or the running speed reaches 16km / h, the test ends, and the test stops automatically.

[0125] Preferably, S2 includes: S21, recording the current real-time heart rate and the current running speed corresponding to the current real-time heart rate as a set of test data, and recording the average real-time heart rate of any running speed in the last 10 seconds within one minute and the running speed as a set of test data, and the test data is not less than two groups; S22, fitting the running speed-heart rate curve equation of the treadmill with the real-time heart rate in different test data as the x value and the corresponding running speed as the y value.

[0126] In S21, the test data is not less than two groups, that is, the running speed is greater than two levels of speed. For example, there are four groups of test data, and the valid data level is defined as N=4. The four groups of test data are Vspeed1, HRavg1; Vspeed2, HRavg2; Vspeed3, HRavg3; Vspeed4, HRavg4.

[0127] In the S22, the running speed-heart rate curve equation of the treadmill is fitted with the real-time heart rate in different test data as the x value and the corresponding running speed as the y value. Also, taking the above four groups of data as an example, (HRavg1, Vspeed1), (HRavg2, Vspeed2), (HRavg3, Vspeed3), (HRavg4, Vspeed4) are four coordinate points. Under the increasing load, when the heart rate of the tester increases between the start of recording the heart rate and the end of the test heart rate interval, there is a good linear relationship between the heart rate and the running speed growth, satisfying the linear equation hr=kv+b, that is, the running speed-heart rate curve equation of the treadmill: Yspeed=Kh*Xhr+Br; Xhr is the heart rate, Yspeed is the running speed at the Xhr heart rate, Kh is the curve coefficient, and Br is the curve intercept.

[0128] More preferably, the calculation formula of the curve coefficient Kh is:

[0129] Kh=(Sum_V_HR-N*P_Sp_Hr) / (Sq_HR-N*Avg_HR 2 );

[0130] N is the number of test data groups, Sum_V_HR is the sum of the products of running speed and real-time heart rate in all test data, P_Sp_Hr is the product of the average speed of all running speeds and the average heart rate of all real-time heart rates, Sq_HR is the sum of the squares of all real-time heart rates, Avg_HR 2 It is the square of the average heart rate of all real-time heart rates.

[0131] Taking the above four sets of data as an example: N=4, Sum_V_HR=Vspeed1*HRavg1+Vspeed2*HRavg2+Vspeed3*HRavg3+Vspeed4*HRavg4, P_Sp_Hr=Avg_Speed*Avg_HR=(Vspeed1+Vspeed2+Vspeed3+Vspeed4) / 4*(HRavg1+HRavg2+HRavg3+HRavg4) / 4, Sq_HR=HRavg1 2 +HRavg2 2 +HRavg3 2 +HRavg4 2 , Avg_HR 2 =((HRavg1+HRavg2+HRavg3+HRavg4) / 4) 2 ;

[0132] The calculation formula of the curve intercept Br is:

[0133] Br = Avg_Speed ​​- Kh * Avg_HR;

[0134] Avg_Speed ​​is the average speed of all running speeds, and Avg_HR is the average heart rate of all real-time heart rates. Taking the above four sets of data as an example: N=4, Avg_Speed=(Vspeed1+Vspeed2+Vspeed3+Vspeed4) / 4, Avg_HR=(HRavg1+HRavg2+HRavg3+HRavg4) / 4.

[0135] Preferably, the S3 includes: S31, calculating the treadmill maximum oxygen uptake speed according to the maximum heart rate and the treadmill running speed-heart rate curve equation, and then calculating the treadmill maximum oxygen uptake from the treadmill maximum oxygen uptake speed; S32, according to the tester's gender, age and the calculated treadmill maximum oxygen uptake, querying the evaluation value of the treadmill maximum oxygen uptake for evaluating cardiopulmonary endurance under the current gender and age from the evaluation chart of the maximum oxygen uptake of women / men of different ages, and the evaluation values ​​include excellent, good, fair, weak and very weak.

[0136] Maximum oxygen uptake is the most important parameter for evaluating cardiopulmonary function endurance, and maximum oxygen uptake is closely related to human health and life activity ability. For this reason, the present invention uses maximum oxygen uptake to evaluate cardiopulmonary function endurance.

[0137] More preferably, the calculation formula for the treadmill maximum oxygen uptake speed is:

[0138] V V 2 max=Kh*HRmax+Br;

[0139] V V 2 max is the maximum oxygen uptake speed of the treadmill, Kh and Br are the curve coefficient and curve intercept respectively, and HRmax is the maximum heart rate.

[0140] More preferably, the calculation formula of the treadmill maximum oxygen uptake is:

[0141] VO 2 max=0.9*(3.5+10 / 3*vVO 2 max);

[0142] VO 2 max is the maximum oxygen uptake on the treadmill.

[0143] If you run at a speed that increases by 1 km / h every 3 minutes, and run at a constant speed for 3 minutes at each speed level, the oxygen uptake will increase by 3.333 ml / kg / min for each increase of 1 km / h. The present invention increases the speed by 1 level per minute, and the oxygen uptake cannot reach a steady state, and can only reach 90% of the 3-minute constant speed run. For this reason, 0.9 is used as a compensation coefficient for the test scheme, and 3.5 is the quiet oxygen uptake.

[0144] According to the tester's gender, age and measured treadmill maximum oxygen uptake, the table lookup method is used, combined with the existing evaluation table of maximum oxygen uptake for women / men of different ages, such as Figure 2 and Figure 3 As shown, find the percentage score and evaluation value corresponding to the tester's gender, age and treadmill maximum oxygen uptake. For example. A tester with gender of female, age of 20-29 years old, and treadmill maximum oxygen uptake of 43.9ml / kg / min, can find out from the table that the percentage score corresponding to the treadmill maximum oxygen uptake is 80%, and the evaluation value is excellent. The evaluation value is the evaluation result of cardiopulmonary endurance.

[0145] The S4 then obtains the field running speed and the field maximum oxygen uptake speed corresponding to any running speed on the treadmill based on the relationship between the running speed and the air resistance.

[0146] Preferably, the calculation formula for the field running speed corresponding to any running speed on the treadmill is:

[0147] V field =0.96*V;

[0148] V is the running speed on the treadmill, V field The field running speed corresponds to the running speed on the treadmill;

[0149] The formula for calculating the maximum oxygen uptake rate of the venue is:

[0150] V V 2 max field =0.96*vVO 2 max;

[0151] V V 2 max field is the maximum oxygen uptake rate at the venue, vVO 2 max is the maximal oxygen uptake speed of the treadmill.

[0152] When running on a field, you need to overcome air resistance. When running at a constant speed, the air resistance is 4% of the speed. Running on a treadmill does not produce air resistance, so the field running speed is 96% of the treadmill speed. Similarly, the field maximum oxygen uptake speed is also 96% of the treadmill maximum oxygen uptake speed.

[0153] The S5 then calculates the slow muscle ratio through the field maximum oxygen uptake speed and the tester's field 50m running time, and then obtains the treadmill anaerobic threshold speed, the treadmill maximum fat oxidation speed, the field anaerobic threshold speed and the field maximum fat oxidation speed through the slow muscle ratio.

[0154] Preferably, the calculation formula for the slow muscle ratio is:

[0155] R sm =1.6-25128÷t 50 ÷(vVO 2 max field ×147.6+661.5);

[0156] R sm is the slow muscle ratio, t 50 vVO is the tester's 50m running time on the field. The 50m running time on the field is actually measured by running 50m on the field, in seconds. 2 max field is the maximum oxygen uptake rate of the venue;

[0157] In particular, when the test subject's on-site 50m running time is not available t50 When the slow muscle ratio R is obtained, the calculation formula can be used sm , the calculation formula is as follows:

[0158] R sm＝ 0.5+(test subject's age - 30)*0.003.

[0159] The calculation formula of the treadmill anaerobic threshold speed is:

[0160] vAT=vVO 2 max×vAT Fatcor ;

[0161] The calculation formula of the field anaerobic threshold speed is:

[0162] Vt field =vVO 2 max field ×vAT Fatcor ;

[0163] The calculation formula for the maximum fat oxidation speed of the treadmill is:

[0164] vFat Max =vVO 2 max×vFatMax Fatcor ;

[0165] The calculation formula for the maximum fat oxidation rate of the site is:

[0166] vFatMax field =vVO 2 max field ×vFatMax Fatcor ;

[0167] vAT is the anaerobic threshold speed of the treadmill, vVO 2 max is the maximum oxygen uptake speed of the treadmill, vAT field is the field anaerobic threshold velocity, vVO 2 max field is the maximum oxygen uptake rate at the venue, vAT Fatcor is the anaerobic threshold coefficient, vFat Max vFatMax is the maximum fat oxidation rate on the treadmill field is the maximum fat oxidation rate of the site, vFatMax Fatcor is the maximum fat oxidation intensity coefficient;

[0168] The anaerobic threshold coefficient is obtained by the slow muscle ratio, and the calculation formula is:

[0169] vT Fatcor =0.3333×R sm +0.5833;

[0170] The maximum fat oxidation intensity coefficient is obtained by the slow muscle ratio, and the calculation formula is:

[0171] vFatMax Fatcor =0.3333×R sm +0.3833.

[0172] Anaerobic threshold coefficient vAT Fatcor It refers to the ratio of the anaerobic threshold speed to the maximum oxygen uptake speed, the maximum fat oxidation intensity coefficient vFatMax Fatcor It refers to the ratio of maximum fat oxidation intensity to maximum oxygen uptake rate.

[0173] The S6 obtains the energy consumption rate of the treadmill at a constant speed at any running speed based on the maximum oxygen uptake speed of the treadmill, and then calculates the sugar consumption rate and the fat consumption rate through the energy consumption rate.

[0174] Preferably, the calculation formula of the energy consumption rate is:

[0175] EE_v = bw*V;

[0176] V is the running speed on the treadmill, EE_v is the energy consumption rate corresponding to the running speed on the treadmill, in kcal / h, bw is the weight of the tester, in kg;

[0177] The calculation formula of the sugar consumption rate is:

[0178] CHO_v=EE_v*Factor_CHO / 4.19;

[0179] CHO_v is the sugar consumption rate corresponding to the running speed on the treadmill, Factor_CHO is the sugar consumption ratio coefficient, and 4.19 is the energy contained in 1g of sugar (kcal / g);

[0180] The calculation formula of the fat consumption rate is:

[0181] FAT_v = EE_v * FactorFAT / 9.3;

[0182] FAT_v is the fat consumption rate corresponding to the running speed on the treadmill, FactorFAT is the fat consumption coefficient, and 9.3 is the energy contained in 1g of fat (kcal / g);

[0183] The sugar consumption ratio coefficient and fat consumption coefficient are both obtained through the respiratory quotient at the maximum oxygen uptake speed of the treadmill;

[0184] The calculation formulas of the sugar consumption ratio coefficient and the fat consumption coefficient are respectively:

[0185] Factor_CHO=3.4016*RER-2.3909;

[0186] Factor_FAT=-3.4013*RER+3.3906;

[0187] RER is the respiratory quotient at the maximum oxygen uptake speed of the treadmill. When the respiratory quotient is greater than or equal to 1.0, Factor_CHO = 1, and when the respiratory quotient is greater than or equal to 1.0, Factor_FAT = 0;

[0188] The calculation formula of the respiratory quotient at the treadmill maximum oxygen uptake speed is:

[0189] RER=0.6239x' 2 -0.2705x'+0.7872;

[0190] x' is the percentage of any running speed to the treadmill's VO2max speed.

[0191] By understanding the energy consumption, sugar consumption and fat consumption at different running speeds (treadmill), the present invention can enable runners to observe the energy consumption rate, sugar consumption rate and fat consumption rate at different running speeds in real time during the running process, so as to choose an exercise load that is more conducive to fat loss. At the same time, mastering the total energy consumption, sugar consumption and fat consumption after each exercise can help runners calculate the daily intake of different energy substances, so as to achieve the purpose of scientifically controlling weight.

[0192] The present invention can also calculate the ordinary marathon speed of the test subject based on the field anaerobic threshold speed, and then predict the marathon competition results from the marathon competition distance and the ordinary marathon speed; or calculate the competition speeds of other competitions except the marathon competition based on the test subject's field 200m running parameters, the ordinary marathon speed and the competition distance to be predicted, and then predict the competition results from the competition distance to be predicted and the corresponding competition speed.

[0193] Preferably, the marathon race is a full marathon race, and the calculation formula for the average person's marathon speed is:

[0194] vT field_p＝ vT field *0.9;

[0195] vT field_p is the average person’s marathon pace, vAT field The average marathon speed is 90% of the average person's anaerobic threshold speed.

[0196] The calculation formula for the marathon results is:

[0197] t 42195 =42.195 / vAT field_p ;

[0198] t 42195 is the marathon result; 42.195 is the marathon distance, 42.195km.

[0199] In particular, when the test subject is a professional athlete, the marathon speed of the professional athlete is kept the same as the anaerobic threshold speed of the professional athlete, that is, the marathon performance of the professional athlete is:

[0200] t 42195 =42.195 / vAT field _.

[0201] Preferably, the method of calculating the race speed of any race distance based on the tester's field 200m running parameters and ordinary people's marathon speed includes the following operations: A1, obtaining the tester's field 200m running speed; A2, obtaining the tester's ordinary people's distance attenuation constant from the field 200m running speed and the ordinary people's marathon speed; A3, calculating the proportional coefficient of the ordinary people's running speed per meter to the 200m running speed; A4, obtaining the race speed of the race distance to be predicted from the race distance to be predicted, the field 200m running speed, the ordinary people's distance attenuation constant and the proportional coefficient of the ordinary people's running speed per meter to the 200m running speed, and finally predicting the race results based on the race distance to be predicted and the corresponding race speed. The race to be predicted is other races except the marathon, including half marathon, middle- and long-distance races, etc.

[0202] The calculation formula for the 200m running speed on the field is:

[0203] V 200 =200 / t 200 *3600 / 1000;

[0204] V 200 is the 200m running speed on the field, that is, the sprint speed of the 200m running on the field, the unit is km / h, 200 is the running distance of the field is 200m, t 200 200m running time for the venue;

[0205] Preferably, since the average of the average 50m running speed of ordinary people on the field is equal to the average of the 200m running speed, the calculation formula for the 200m running speed on the field can also be:

[0206] V 200 =50 / t 50 *3600 / 1000;

[0207] 50 is the running distance of the field, which is 50m. 50 50m running time for the venue;

[0208] The calculation formula of the ordinary person distance attenuation constant is:

[0209] np=log 210.975 (vAT field_p / V 200 );

[0210] np is the average person distance decay constant;

[0211] The calculation formula of the ratio coefficient of the average person's running speed per meter to the 200m running speed is:

[0212] Kp 200 =1 / 200^(-0.134)=2.0378;

[0213] The calculation formula for the race speed of the race distance to be predicted is:

[0214] V S =Kp 200 *S^np*V 200 ;

[0215] V S is the race speed of the race distance to be predicted, S is the race distance to be predicted;

[0216] The calculation formula for the competition results is:

[0217] t S =S / VS ;

[0218] t S For competition results.

[0219] In particular, when the tester is a professional athlete, the distance attenuation constant n of the professional athlete is log( 42195 / 200 )(vAT field / V 200 ), where vAT field 、V 200 They are the anaerobic threshold speed of professional athletes on the field, i.e. the marathon speed of professional athletes and the 200m running speed on the field; the proportional coefficient K of the professional athlete's running speed per meter relative to the 200m running speed 200 = 1 / 200^n, the race speed V of the professional athlete for the predicted race distance S =K 200 *S^n*V 200 .

[0220] Example

[0221] An average person with age of 49, height of 170cm, weight of 78kg, and resting heart rate HRstatic of 60bpm uses the method of the present invention to indirectly evaluate cardiopulmonary endurance and energy metabolism and predict sports performance. The specific operations are as follows:

[0222] 1. Input the tester's information, including name, gender, age, height, weight, resting heart rate and maximum heart rate, and calculate the tester's starting heart rate and ending heart rate by resting heart rate and maximum heart rate: First, the tester did not provide the maximum heart rate, and the general formula was used to calculate HRmax = 207-0.7*age (age), and the maximum heart rate HRmax = 207-0.7*49 = 172.7bpm; then calculate the starting heart rate HRstart = (172.7-60)*0.55+60 = 122bpm, and the ending heart rate HRstop = (172.7-60)*0.80+60 = 150bpm;

[0223] 2. The tester performs a treadmill test and saves the data based on the treadmill test. The average heart rate recorded in the last 10 seconds after the test is greater than 122 bpm or greater than 150 bpm is as follows:

[0224] Yspeed1=10km / h Xhr1=124bpm;

[0225] Yspeed2=11km / h Xhr1=129bpm;

[0226] Yspeed3=12km / h Xhr1=138bpm;

[0227] Yspeed4=13km / h Xhr1=147bpm;

[0228] Yspeed5=14km / h Xhr1=156bpm;

[0229] The above five groups of test data are processed and fitted to obtain the treadmill running speed-heart rate curve equation of the tester:

[0230] The number of test data sets N = 5;

[0231] The sum of the product of running speed and real-time heart rate in all test data Sum_V_HR = 10*124+11*129+12*138+13*147+14*156 = 8410;

[0232] The average heart rate of all real-time heart rates Avg_HR = (124 + 129 + 138 + 147 + 156) / 5 = 138.8;

[0233] The square of the average heart rate of all real-time heart rates Avg_HR 2 =138.8*138.8=19265.44;

[0234] The sum of squares of all real-time heart rates Sq_HR = 124 2 +129 2 +138 2 +147 2 +156 2 =97006;

[0235] The average speed of all running speeds Avg_Speed ​​= (10+11+12+13+14) / 5 = 12;

[0236] The product of the average speed of all running speeds and the average heart rate of all real-time heart rates P_Sp_Hr = Avg_HR * Avg_Speed ​​= 138.8 * 12 = 1665.6;

[0237] Curve coefficient Kh = (Sum_V_HR-N*P_Sp_HR) / (Sq_HR-N*Avg_HR 2 )=

[0238] (8410-5*1665.6) / (97006-5*19265.44)=0.12080141;

[0239] Curve intercept Br = Avg_Speed ​​- Kh * Avg_HR = 12 - 0.12080141 * 138.8 = -4.7672362;

[0240] Running speed-heart rate curve equation: Yspeed=Kh*Xhr+Br=Yspeed=0.12080141*Xhr-4.7672362.

[0241] 3. Based on the treadmill running speed-heart rate curve equation, the treadmill maximum oxygen uptake speed and treadmill maximum oxygen uptake of the tester are obtained:

[0242] Treadmill maximal oxygen uptake speed vVO 2 max=Kh*HRmax+Br=0.12080141*172.7-4.7672362=16.09km / h;

[0243] Treadmill maximum oxygen uptake VO 2 max=0.9*(3.5+10 / 3*vVO 2 max)=0.9*(3.5+10 / 3*16.09)=51.4355ml / kg / min.

[0244] According to the tester's gender, age, and calculated treadmill maximum oxygen uptake of 51.4355ml / kg / min, the evaluation chart of the maximum oxygen uptake of women / men of different ages ( Figure 2 , Figure 3 ) From the table, we can see that the percentage score corresponding to the maximum oxygen uptake on the treadmill is between 90% and 95%, and the evaluation value is between excellent and very good. To further obtain a specific evaluation value, 90+(51.44-49.6) / ((52.5-49.6) / 5)=93, 51.44 is the rounded value of 51.4355, 49.6 and 52.5 are the maximum oxygen uptake corresponding to 90% and 95% respectively. Therefore, the percentage score of the tester is 3%, and the evaluation value is excellent.

[0245] 4. Based on the relationship between running speed and air resistance, the field running speed and field maximum oxygen uptake speed corresponding to any running speed of the tester on the treadmill are obtained: field running speed V fi eld=0.96*V, V is any running speed of the tester on the treadmill, and the maximum oxygen uptake speed vVO 2 max field =

[0246] 0.96*vVO 2 max=0.96*16.09=15.45km / h.

[0247] 5. Calculate the slow muscle ratio of the tester through the maximum oxygen uptake speed and the tester's 50m running time on the field, and then obtain the tester's treadmill anaerobic threshold speed, treadmill maximum fat oxidation speed, field anaerobic threshold speed and field maximum fat oxidation speed through the slow muscle ratio:

[0248] If it is known that the tester's field 50m running time is 8.2 seconds:

[0249] Slow muscle ratio R sm =1.6-25128÷t 50 ÷(vVO 2 max field ×147.6+661.5)=1.6-25128÷8.2÷(15.45×147.6+661.5)=0.558;

[0250] Anaerobic threshold coefficient vAT Fatcor =0.3333×R sm +0.5833=0.3333×0.558+0.5833=0.7693;

[0251] Maximum fat oxidation intensity coefficient vFatMax Fatcor =0.3333×R sm +0.3833=0.3333×0.558+0.3833=0.5693;

[0252] Treadmill anaerobic threshold speed vAT = vVO 2 max×vAT Fatcor =16.09×0.7693=12.38km / h;

[0253] Anaerobic threshold velocity vAT field =vVO 2 max field ×vAT Fatcor =15.45×0.7693=11.89km / h;

[0254] Treadmill maximum fat oxidation rate vFat Max =vVO 2 max×vFatMax Fatcorr =16.09×0.5693=9.16km / h;

[0255] Maximum fat oxidation rate vFatMax field =vVO 2 max field ×vFatMax Fatco =15.45×0.5693=8.80km / h;

[0256] If the tester's 50m running time is unknown:

[0257] Using formula R sm＝ 0.5+(age-30)*0.003 to get the slow muscle ratio R sm =0.5+(49-30)*0.003=0.557;

[0258] Anaerobic threshold coefficient vAT Fatcor =0.3333×R sm +0.5833=0.3333×0.557+0.5833=0.7689;

[0259] Maximum fat oxidation intensity coefficient vFatMax Fatcor =0.3333×R sm +0.3833=0.3333×0.557+0.3833=0.5689;

[0260] Treadmill anaerobic threshold speed vAT = vVO 2 max×vAT Fatcor =16.09×0.7689=12.37km / h;

[0261] Anaerobic threshold velocity vAT field =vVO 2 max field ×vAT Fatcor =15.45×0.7689=11.88km / h;

[0262] Treadmill maximum fat oxidation rate vFat Max =vVO 2 max×vFatMax Fatcorr =16.09×0.5689=9.15km / h;

[0263] Maximum fat oxidation rate vFatMax field =vVO 2 max field ×vFatMax Fatco =15.45×0.5689=8.80km / h.

[0264] 6. Based on the treadmill maximum oxygen uptake speed, the energy consumption rate of the tester when running at a constant speed on the treadmill at any running speed is obtained, and then the sugar consumption rate and fat consumption rate are calculated by the energy consumption rate. The arbitrary running speed is the treadmill maximum oxygen uptake speed vVO 2 max, get the maximum oxygen uptake energy consumption rate, maximum oxygen uptake sugar consumption rate and maximum oxygen uptake fat consumption rate of the tester at the constant speed;

[0265] Maximum oxygen consumption rate EE_vVO 2 max=bw×vVO 2 max=78×16.09=1255.0kcal / h;

[0266] The respiratory quotient x' at treadmill maximum oxygen uptake is 1, and the respiratory quotient RER at treadmill maximum oxygen uptake speed is 0.6239x' 2 -0.2705x'+0.7872=0.6239-0.2705+0.7872=1.1406;

[0267] Since RER>1, the fat consumption ratio factor Factor_FAT=0, and the sugar consumption ratio factor Factor_CHO=1

[0268] Maximum oxygen uptake and glucose consumption rate CHO_vVO 2 max=EE_vVO 2 max*1 / 4.19=1255.0 / 4.19=299.5g / h;

[0269] Fat_vVO 2 max=EE_vVO 2 max*0 / 9.3=0g / h.

[0270] Or the arbitrary running speed is taken as the anaerobic threshold speed vAT of the treadmill, and the anaerobic threshold energy consumption rate, anaerobic threshold sugar consumption rate and anaerobic threshold fat consumption rate of the test subject when running at a constant speed at the speed are obtained;

[0271] Take the treadmill anaerobic threshold speed vAT obtained when the unknown test subject ran for 50 m on the field as above = 12.37 km / h;

[0272] Anaerobic threshold energy consumption rate EE_vAT = bw × vAT = 78 × 12.37 = 964.9 kcal / h;

[0273] The percentage of the anaerobic threshold speed of the treadmill to the maximum oxygen uptake speed of the treadmill is the anaerobic threshold coefficient vAT. Fatcor , that is, at this time x'=vAT Fatcor =0.7689, so the respiratory quotient RER at the anaerobic threshold speed of the treadmill is =0.6239x' 2 -0.2705x'+0.7872=0.6239×(0.7689) 2 -0.2705×0.7689+0.7872=0.3689-0.208+0.7872=0.9481;

[0274] The sugar consumption ratio coefficient of anaerobic threshold Factor_CHO = 3.4016*RER-2.3909 = 3.4016*0.9481-2.3909 = 0.8342;

[0275] The fat consumption ratio coefficient of anaerobic threshold Factor_FAT = -3.4013*RER+3.3906 = -3.4013*0.9481+3.3906 = 0.1658;

[0276] Anaerobic threshold sugar consumption rate CHO_vAT = EE_vAT*Factor_CHO / 4.19 = 964.9*0.8342 / 4.19 = 192.1 g / h;

[0277] Anaerobic threshold fat consumption rate FAT_vAT = EE_vAT*Factor_FAT / 4.19 = 964.9*0.1658 / 9.3 = 17.2 g / h.

[0278] 7. Predict the tester's race results at different distances:

[0279] 7.1. Assume that the test subject is an ordinary person, i.e. a non-professional athlete, and predict the test subject's performance in different distances, including the field anaerobic threshold speed vAT field The field anaerobic threshold speed vAT is obtained by using the known field 50m running time of the test subject. field = 11.89km, and the 200m running time is 8.2s, which is the 50m running time. We can get V 50 =50 / 8.2*3600 / 1000=21.95km / h, V 200 =V 50 =21.95km / h / :

[0280] Average Marathon Speed ​​vAT field_p =vAT field *0.9=11.89*0.9=10.7km / h;

[0281] Ordinary person distance decay constant np = log (42195 / 200) (vATfield_p / V200) = log 210.975 (10.7 / 21.95) = -0.134;

[0282] The proportional coefficient Kp of the average person's running speed per meter relative to the 200m running speed 200 =1 / 200^np=1 / 200^(-0.134)=2.0378;

[0283] 7.1.1. Predict the tester's marathon (42195m, or 42.195km) race results as follows:

[0284] Average Marathon Speed ​​V 42195 =vAT field_p =10.7km / h;

[0285] Average Marathon Results 42195 =42.195 / 10.7=3.943 hours=236.6 minutes;

[0286] 7.1.2. The predicted results of the half marathon (21100m or 21.1km) of the test subject are as follows:

[0287] Average half marathon speed 21100 =Kp 200 *21100^np*V 200 =2.0378*0.2634*21.95=11.74km / h;

[0288] Average half marathon results V 21100 = 21.1 / 11.74 = 1.797 hours = 107.8 minutes;

[0289] 7.1.3. The predicted results of the tester's 10,000m (10km) race are as follows:

[0290] Average 10,000m race speed V 10000 =Kp 200 *10000^np*V 200 =2.0378*0.2911*21.95=12.98km / h;

[0291] Average 10,000m race results 10000 =10 / 12.98=0.7704 hours=46.2 minutes

[0292] 7.1.4. The predicted results of the tester in the 1500m (1.5km) race are as follows:

[0293] Average 1500m race speed V 1500 =Kp 200 *1500^np*V 200 =2.0378*0.3753*21.95=16.75km / h

[0294] Average 1500m race results 1500 =1.5 / 16.75=5.37 minutes=322.4 seconds.

[0295] 7.2. Assume that the test subject is a professional athlete and predict the test subject's performance in different distances, including the field anaerobic threshold speed vAT field The field anaerobic threshold speed vAT is obtained by using the known field 50m running time of the test subject. field = 11.89km, and the 200m running time is 8.2s, which is the 50m running time. So V 50 =50 / 8.2*3600 / 1000=21.95km / h, V 200 =V 50 =21.95km / h / :

[0296] When the test subject is a professional athlete, the professional athlete's marathon speed remains the same as the professional athlete's field anaerobic threshold speed:

[0297] Professional athlete marathon pace = vAT field =11.89km / h;

[0298] Professional athlete distance attenuation constant n = log 210.975 (vAT field / V 200 )=log 210.975 (11.89 / 21.95) = -0.115

[0299] The ratio of the running speed per meter of a professional athlete to the running speed of 200 meters is K 200 =1 / 200^n=1 / 200^(-0.115)=1.839;

[0300] 7.2.1. Predict the tester's marathon (42195m, or 42.195km) race results as follows:

[0301] Professional athlete marathon race speed V 42195 =vAT field =11.89km / h;

[0302] Marathon results of professional athletes 42195 =42.195 / 11.89=3.549 hours=212.9 minutes;

[0303] 7.2.2. The predicted results of the half marathon (21100m, or 21.1km) of the test subject are as follows:

[0304] Professional athlete half marathon speed 21100 =K 200 *21100^n*V 200 =12.9km / h;

[0305] Professional Athletes Half Marathon Results V 21100 = 21.1 / 12.9 = 1.797 hours = 98.1 minutes;

[0306] 7.2.3. The predicted results of the tester's 10,000m (10km) race are as follows:

[0307] Professional athlete 10000m race speed V 10000 =K 200 *10000^n*V 200 =14.05km / h;

[0308] Professional athletes' 10,000m race results 10000 = 10 / 14.05 = 0.7117 hours = 42.7 minutes;

[0309] 7.2.4. The predicted results of the tester's 1500m (1.5km) race are as follows:

[0310] Professional athlete 1500m race speed V 1500 =K 200 *1500^np*V 200 =17.47km / h;

[0311] Professional athletes' 1500m race results 1500 =1.5 / 17.47=5.15 minutes=309 seconds.

[0312] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, rather than limiting them, and certainly not limiting the patent scope of the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. In other words, any changes or modifications made to the main design concept and spirit of the present invention that have no substantive significance, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention in other related technical fields is also included in the patent protection scope of the present invention.

Claims

1. A method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance, characterized in that: The following steps are involved: S1. Obtain the average heart rate of the test subject at different running speeds on the treadmill through treadmill testing; S2, obtaining a treadmill running speed-heart rate curve equation based on the average heart rate at different running speeds on the treadmill; S3, obtaining the treadmill maximum oxygen uptake speed and the treadmill maximum oxygen uptake based on the treadmill running speed-heart rate curve equation, and querying the evaluation value of the treadmill maximum oxygen uptake corresponding to the cardiopulmonary endurance in the evaluation chart of the maximum oxygen uptake of women / men of different ages; S4. Based on the relationship between the running speed and the air resistance, the field running speed and the field maximum oxygen uptake speed corresponding to any running speed on the treadmill are obtained; S5. Calculate the slow muscle ratio by using the field maximum oxygen uptake speed and the field 50m running time of the tester, and then obtain the treadmill anaerobic threshold speed, the treadmill maximum fat oxidation speed, the field anaerobic threshold speed and the field maximum fat oxidation speed by using the slow muscle ratio; S6. Based on the maximal oxygen uptake speed of the treadmill, the energy consumption rate of the treadmill at a constant speed at any running speed is obtained, and then the sugar consumption rate and the fat consumption rate are calculated according to the energy consumption rate; S7. Calculate the ordinary marathon speed of the test subject based on the field anaerobic threshold speed, and then predict the marathon results based on the marathon distance and the ordinary marathon speed; or calculate the speed of other competitions except the marathon based on the test subject's field 200m running parameters, the ordinary marathon speed and the distance of the competition to be predicted, and then predict the competition results based on the distance of the competition to be predicted and the corresponding competition speed.

2. A method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance according to claim 1, characterized in that: The S1 includes: S11, input the tester's information, including name, gender, age, height, weight, resting heart rate and maximum heart rate, and calculate the starting heart rate and ending test heart rate through the resting heart rate and maximum heart rate; S12, divide the treadmill test into three stages, namely, warm-up stage, test stage and end of test stage, and obtain the real-time heart rate of the tester in each stage; the running speed in the warm-up stage is 6km / h, and the time is 3 minutes; the running speed in the test stage is 6km / h and increases by 1km / h per minute, and the time for each running speed is 1 minute; the end of the test stage is when the real-time heart rate is greater than the end test heart rate or the running speed reaches 16km / h; in the test stage, if the real-time heart rate is greater than or equal to the starting heart rate, start recording the current real-time heart rate and the current running speed corresponding to the current real-time heart rate, calculate the average real-time heart rate of any running speed in the last 10 seconds within 1 minute, and record the average real-time heart rate and running speed.

3. A method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance according to claim 2, characterized in that: The calculation formula for starting to record heart rate is: HRstart=(HRmax-HRstatic)*0.55+HRstatic; The calculation formula for the end test heart rate is: HRstop=(HRmax-HRstatic)*0.80+HRstatic; In the formula, HRstart indicates the start of heart rate recording, HRstop indicates the end of heart rate testing, HRmax indicates the maximum heart rate, and HRstatic indicates the resting heart rate.

4. A method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance according to claim 2, characterized in that: The S2 includes: S21, recording the current real-time heart rate and the current running speed corresponding to the current real-time heart rate as a set of test data, and recording the average real-time heart rate of any running speed in the last 10 seconds within one minute and the running speed as a set of test data, and the test data is not less than two sets; S22, fitting the running speed-heart rate curve equation of the treadmill with the real-time heart rate in different test data as x value and the corresponding running speed as y value: Yspeed=Kh*Xhr+Br; Xhr is the real-time heart rate, Yspeed is the running speed when the real-time heart rate is Xhr, Kh is the curve coefficient, and Br is the curve intercept; The calculation formula of the curve coefficient Kh is: Kh=(Sum_V_HR-N*P_Sp_Hr) / (Sq_HR-N*Avg_HR 2 ); N is the number of test data groups, Sum_V_HR is the sum of the products of running speed and real-time heart rate in all test data, P_Sp_Hr is the product of the average speed of all running speeds and the average heart rate of all real-time heart rates, Sq_HR is the sum of the squares of all real-time heart rates, Avg_HR 2 is the square of the average heart rate of all real-time heart rates; The calculation formula of the curve intercept Br is: Br = Avg_Speed ​​- Kh * Avg_HR; Avg_Speed ​​is the average speed of all running speeds, and Avg_HR is the average heart rate of all real-time heart rates.

5. A method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance according to claim 4, characterized in that: The S3 includes: S31, calculating the treadmill maximum oxygen uptake speed according to the maximum heart rate and the treadmill running speed-heart rate curve equation, and then calculating the treadmill maximum oxygen uptake from the treadmill maximum oxygen uptake speed; S32, according to the tester's gender, age and the calculated treadmill maximum oxygen uptake, querying the evaluation value of the treadmill maximum oxygen uptake for evaluating cardiopulmonary endurance under the current gender and age from the evaluation chart of the maximum oxygen uptake of women / men of different ages, wherein the evaluation values ​​include excellent, good, fair, weak and very weak; Preferably, the calculation formula for the treadmill maximum oxygen uptake speed is: vVO2max=Kh*HRmax+Br; vVO2max is the maximum oxygen uptake speed of the treadmill, Kh and Br are the curve coefficient and curve intercept, respectively, and HRmax is the maximum heart rate; Preferably, the calculation formula for the treadmill maximum oxygen uptake is: VO2max=0.9*(3.5+10 / 3*vVO2max); VO2max is the maximum oxygen uptake on a treadmill.

6. A method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance according to claim 5, characterized in that: The formula for calculating the field running speed corresponding to any running speed on the treadmill is: V field =0.96*V; V is the running speed on the treadmill, V field The field running speed corresponds to the running speed on the treadmill; The formula for calculating the maximum oxygen uptake rate of the venue is: vVO2max field =0.96*vVO2max; vVO2max field vVO2max is the maximum oxygen uptake speed on the field and vVO2max is the maximum oxygen uptake speed on the treadmill.

7. A method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance according to claim 6, characterized in that: The calculation formula for the slow muscle ratio is: R sm =1.6-25128÷t 50 ÷(vVO2max field ×147.6+661.5); R sm is the slow muscle ratio, t 50 The 50m running time of the test subject is measured by running 50m on the field, in seconds, vVO2max field is the maximum oxygen uptake rate of the venue; The calculation formula of the treadmill anaerobic threshold speed is: vAT=vVO2max×vAT Fatcor ; The calculation formula of the field anaerobic threshold speed is: vAT field =vVO2max field ×vAT Fatcor ; The calculation formula for the maximum fat oxidation speed of the treadmill is: vFat Max =vVO2max×vFatMax Fatcor ; The calculation formula for the maximum fat oxidation rate of the site is: vFatMax field =vVO2max field ×vFatMax Fatcor ; vAT is the anaerobic threshold speed of the treadmill, vVO2max is the maximum oxygen uptake speed of the treadmill, and vAT field is the field anaerobic threshold speed, vVO2max field is the maximum oxygen uptake rate at the venue, vAT Fatcor is the anaerobic threshold coefficient, vFat Max vFatMax is the maximum fat oxidation rate on the treadmill field is the maximum fat oxidation rate of the site, vFatMax Fatcor is the maximum fat oxidation intensity coefficient; The anaerobic threshold coefficient is obtained by the slow muscle ratio, and the calculation formula is: vAT Fatcor =0.3333×R sm +0.5833; The maximum fat oxidation intensity coefficient is obtained by the slow muscle ratio, and the calculation formula is: vFatMax Fatcor =0.3333×R sm +0.3833.

8. The method of indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance according to claim 1, characterized in that: The calculation formula of the energy consumption rate is: EE_v = bw*V; V is the running speed on the treadmill, EE_v is the energy consumption rate corresponding to the running speed on the treadmill, and bw is the weight of the tester; The calculation formula of the sugar consumption rate is: CHO_v=EE_v*Factor_CHO / 4.19; CHO_v is the sugar consumption rate corresponding to the running speed on the treadmill, and Factor_CHO is the sugar consumption ratio coefficient; The calculation formula of the fat consumption rate is: FAT_v = EE_v * FactorFAT / 9.3; FAT_v is the fat consumption rate corresponding to the running speed on the treadmill, and FactorFAT is the fat consumption coefficient; The sugar consumption ratio coefficient and fat consumption coefficient are both obtained through the respiratory quotient at the maximum oxygen uptake speed of the treadmill; The calculation formulas of the sugar consumption ratio coefficient and the fat consumption coefficient are respectively: Factor_CHO=3.4016*RER-2.3909; Factor_FAT=-3.4013*RER+3.3906; RER is the respiratory quotient at the maximum oxygen uptake speed of the treadmill. When the respiratory quotient is greater than or equal to 1.0, Factor_CHO = 1, and when the respiratory quotient is greater than or equal to 1.0, Factor_FAT = 0; The calculation formula of the respiratory quotient at the treadmill maximum oxygen uptake speed is: RER=0.6239x’ 2 -0.2705x’+0.7872; x' is the percentage of any running speed to the treadmill's VO2max speed.

9. The method of indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance according to claim 7, characterized in that: The marathon race is a full marathon race, and the calculation formula for the average person's marathon speed is: VAT field_p＝ VAT field *0.9; vT field_p is the average person’s marathon pace, vAT field is the field anaerobic threshold speed; The calculation formula for the marathon results is: t 42195 =42.195 / vAT field_p ; t 42195 is the marathon result; 42.195 is the marathon distance, 42.195km.

10. A method for indirectly evaluating cardiopulmonary endurance, energy metabolism and predicting sports performance according to claim 9, characterized in that: The method of calculating the race speed of other races except the marathon race based on the tester's field 200m running parameters, ordinary people's marathon speed and the race distance to be predicted includes the following operations: A1, obtaining the tester's field 200m running speed; A2, obtaining the tester's ordinary people's distance attenuation constant from the field 200m running speed and the ordinary people's marathon speed; A3, calculating the proportional coefficient of the ordinary people's per meter running speed to the 200m running speed; A4, obtaining the race speed of the race distance to be predicted from the race distance to be predicted, the field 200m running speed, the ordinary people's distance attenuation constant and the proportional coefficient of the ordinary people's per meter running speed to the 200m running speed, and finally predicting the race result from the race distance to be predicted and the corresponding race speed; The calculation formula for the 200m running speed on the field is: V 200 =200 / t 200 *3600 / 1000; V200 is the running speed of 200m in the venue, in km / h, 200 is the running distance of 200m, t 200 200m running time for the venue; Preferably, since the average of the average 50m running speed of ordinary people on the field is equal to the average of the 200m running speed, the calculation formula for the 200m running speed on the field can also be: V 200 =50 / t 50 *3600 / 1000; 50 is the running distance of the field, which is 50m. 50 50m running time for the venue; The calculation formula of the ordinary person distance attenuation constant is: np=log 210.975 (vAT field_p / V 200 ); np is the average person distance decay constant; The calculation formula of the ratio coefficient of the average person's running speed per meter to the 200m running speed is: Kp 200 =1 / 200^(-0.134)=2.0378; The calculation formula for the race speed of the race distance to be predicted is: V S =Kp 200 *S^np*V 200 ; V S is the race speed of the race distance to be predicted, S is the race distance to be predicted; The calculation formula for the competition results is: t S =S / V S ; t S For competition results.

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