Sinopenia community screening system and statistical system

Abstract

The invention relates to the technical field of health monitoring, in particular to a sarcopenia community screening system and a sarcopenia community statistical system.The screening system comprises a grip strength testing device used for automatically testing the grip strength capacity of a subject; the leg circumference measuring device is used for automatically measuring the leg circumference of the subject; the standing and walking testing device is used for automatically measuring the first spent time of the subject standing up from the first seat, moving forwards for a preset distance and then returning to the first seat; the standing and sitting test device is used for automatically measuring the second time spent by the subject standing up from the second seat and sitting down for a preset number of times; the body composition testing device is used for measuring and evaluating body composition data of the subject on the basis of the human body biological resistance condition of the subject; and the data processing device is connected with each testing device and is used for judging whether the subject has sarcopenia or not, and the testing function is automatically completed through each testing device, so that not only is the screening efficiency improved, but also the screening environment is improved, and the screening is orderly carried out.

Description

Technical Field

[0001] The present invention relates to the field of health monitoring technology, and in particular to a sarcopenia community screening system and a statistical system. Background Art

[0002] Sarcopenia is an age-related disease characterized by a gradual decrease in muscle mass and strength, which usually occurs in the elderly. Muscle loss not only affects an individual's physical function and motor ability, but also increases the risk of falls and fractures, significantly reducing the quality of life. The mechanism of sarcopenia is complex and involves multiple factors, including changes in hormone levels, increased inflammatory responses, and interference with protein synthesis. As muscle mass decreases, individuals may feel fatigue, weakness, and even have difficulty in daily activities, which makes patients more dependent on others, further exacerbating social isolation and mental health problems. Methods for preventing and treating sarcopenia syndrome include regular strength training, maintaining a balanced diet, especially adequate protein intake, and improving lifestyle and increasing daily activity. Through these measures, individuals can effectively delay the decline of muscle mass, maintain good physical function, and thus improve the quality of life.

[0003] Conducting a sarcopenia survey in the community is of great significance. First, sarcopenia is a common but often neglected health problem, especially among the elderly. Through the survey, people's awareness of the disease can be improved, and more people can understand the risk factors and potential impacts of sarcopenia, thereby promoting early detection and intervention. Secondly, the sarcopenia survey can help medical workers identify high-risk individuals and provide them with personalized health management plans. This early intervention can not only improve the individual's physical function and quality of life, but also reduce complications caused by sarcopenia, such as falls and fractures, thereby reducing the burden on the medical system. In addition, the community survey can also provide data support for the formulation of public health policies. By collecting and analyzing the prevalence of sarcopenia in the community, relevant departments can allocate resources more effectively, carry out targeted health education and intervention measures, and promote the improvement of the overall health level of the community. The sarcopenia survey can also promote interaction and support among community members and enhance social cohesion. By paying attention to this health issue together, community residents can encourage each other, participate in health activities, and form a positive lifestyle, thereby improving the overall health atmosphere of the community.

[0004] However, the number of people screened in the community is large, and more maintenance personnel are needed to maintain order and assist in testing, which is inefficient and not conducive to the implementation of screening work. Summary of the invention

[0005] In view of the above problems, the present invention provides a sarcopenia community screening system and statistical system that overcomes the above problems or at least partially solves the above problems.

[0006] The present invention provides a community screening system for sarcopenia, comprising

[0007] A grip strength testing device, used to automatically test the grip strength of a subject;

[0008] A leg circumference measuring device, used for automatically measuring the leg circumference of a subject;

[0009] A stand-up and walk test device, used to automatically measure the first time taken by a subject to stand up from a first seat and walk a preset distance forward and then return to the first seat;

[0010] A sit-up test device, used for automatically measuring a second time taken by a subject to stand up and sit down from a second seat for a preset number of times;

[0011] A body composition testing device, used to measure and evaluate the body composition data of the subject based on the subject's human body bioimpedance;

[0012] The data processing devices are connected to the grip strength testing device, the leg circumference measuring device, the stand-up and walk testing device, the sit-up testing device and the body composition testing device, and are used to determine whether the subject has sarcopenia based on the subject's grip strength ability, leg circumference, first spent time, second spent time and body composition data.

[0013] Preferably, the grip strength testing device, the leg circumference measuring device, the stand-up and walk testing device, the sit-up testing device and the body composition testing device are arranged in sequence.

[0014] Preferably, the grip strength testing device comprises:

[0015] The first voice broadcast module is used to guide the subject to perform a grip strength test;

[0016] A grip pressure plate, used for subjects to grip and press;

[0017] A strain gauge is disposed below the grip pressure plate and is used to generate deformation based on the grip pressure of the subject, thereby generating a changing voltage signal;

[0018] an amplifier circuit, used for amplifying the voltage signal;

[0019] A single chip microcomputer is used to perform analog-to-digital conversion on the amplified voltage signal and determine the grip result after the grip is maintained for a preset time;

[0020] A first Lora module, connected to the single chip microcomputer, for transmitting the grip strength result to a data processing device;

[0021] Preferably, the leg circumference measuring device comprises:

[0022] The second voice broadcast module is used to guide the subject to measure the leg circumference;

[0023] Bracket;

[0024] An annular ring is arranged on the bracket, the annular ring is made of iron material, and the circumference of the annular ring is greater than a preset size, and the preset size is set based on a conventional leg circumference;

[0025] The wire displacement sensor comprises: a reel, a driving motor and a measuring tape, wherein a soft electromagnetic material is arranged inside the measuring tape, and the measuring tape is rolled up on the reel;

[0026] A control module, connecting the annular ring and the wire displacement sensor;

[0027] Before the subject measures the leg circumference, the control module controls the electromagnetic material of the measuring tape to be energized so that the measuring tape is adsorbed on the annular ring;

[0028] After the subject extends his leg into the annular ring, the control module controls the electromagnetic material of the measuring tape to be powered off, so that the measuring tape is tightened to the subject's calf under the action of the driving motor, so as to measure the leg circumference and obtain the leg circumference test result;

[0029] The second Lora module is connected to the control module and is used to transmit the leg circumference measurement result to the data processing device.

[0030] Preferably, the stand-and-walk test device comprises:

[0031] The third voice broadcast module is used to guide the subject to perform the sit-up and walk test;

[0032] The first seat is used to provide a sitting position for the subject.

[0033] The first seat is provided with a first piezoelectric film for detecting the standing up and sitting down of the subject;

[0034] A first timer is used to count the first time taken by the subject to stand up from the first seat and walk a preset distance before returning to the first seat based on the subject's standing up and sitting down;

[0035] The third Lora module is connected to the first timer and is used to transmit the first time duration to the data processing device.

[0036] Preferably, the sit-up test device comprises:

[0037] The fourth voice broadcast module is used to guide the subject to perform a sit-up test;

[0038] The second seat is used to provide a sitting position for the subject;

[0039] The second seat is provided with a second piezoelectric film for detecting the standing up and sitting down of the subject;

[0040] A second timer is used to count a second time spent by the subject standing up and sitting down a preset number of times on the second chair based on the subject's standing up and sitting down;

[0041] The fourth Lora module is connected to the second timer and is used to transmit the second elapsed time to the data processing device.

[0042] Preferably, the body composition testing device comprises:

[0043] The fifth voice broadcast module is used to guide the subject to perform the body composition test;

[0044] A carrying platform, on which a sampling electrode, a weighing device and a height collection device are arranged, the sampling electrode is used to contact the body part of the subject to obtain the bioelectrical impedance, the weighing device is used to weigh the subject, and the height sampling device is used to measure the height of the subject;

[0045] A processing module, connected to the carrier platform, for determining the body composition data of the subject based on the height, weight and bioelectrical impedance of the subject;

[0046] The fifth Lora module, a connection processing module, is used to transmit the body composition data of the subject to a data processing device.

[0047] Preferably, the system further comprises:

[0048] The scanning module provided on the grip strength test device, the leg circumference test device, the stand-up and walk test device, the sit-up and stand test device, and the body composition test device is used for:

[0049] The unique identification information carried by the subject is scanned so that the data processing device can integrate the gripping ability, leg circumference, first time spent, second time spent and body composition data of the same subject based on the unique identification information.

[0050] In a second aspect, the present invention further provides a community screening and statistical system for sarcopenia, comprising:

[0051] The sarcopenia community screening system as described in any one of the first aspects;

[0052] The cloud server connects the sarcopenia community screening systems located in different communities and is used to generate resource demand situations for different communities based on the screening results of the sarcopenia community screening systems in different communities, so as to prompt different communities to make improvements.

[0053] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0054] The present invention provides a community screening system for sarcopenia, comprising: a grip strength testing device, used for automatically testing the grip strength ability of a subject; a leg circumference measuring device, used for automatically measuring the leg circumference of the subject; a stand-up and walk testing device, used for automatically measuring a first time taken by the subject to stand up from a first seat and walk a preset distance forward and then return to the first seat; a sit-up testing device, used for automatically measuring a second time taken by the subject to stand up and sit down from a second seat a preset number of times; a body composition testing device, used for measuring and evaluating the body composition data of the subject based on the subject's human bioimpedance; a data processing device, all connected to the grip strength testing device, the leg circumference measuring device, the stand-up and walk testing device, the sit-up testing device and the body composition testing device, used for judging whether the subject has sarcopenia based on the subject's grip strength ability, leg circumference, the first time taken, the second time taken and the body composition data, and automatically completing the testing function through each testing device, which not only improves the screening efficiency, but also improves the screening environment, so that the screening is carried out in an orderly manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Also, throughout the accompanying drawings, the same reference figures are used to represent the same components. In the drawings:

[0056] Figure 1 A schematic diagram of the structure of a sarcopenia community screening system in an embodiment of the present invention is shown;

[0057] Figure 2 A schematic diagram of the structure of a grip strength testing device according to an embodiment of the present invention is shown;

[0058] Figure 3 A schematic diagram of the structure of a leg circumference measuring device in an embodiment of the present invention is shown;

[0059] Figure 4 A schematic structural diagram of a stand-up and walk test device according to an embodiment of the present invention is shown;

[0060] Figure 5 A schematic diagram of the structure of a body composition testing device in an embodiment of the present invention is shown;

[0061] Figure 6 A schematic diagram of the structure of a sarcopenia community screening and statistical system in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0062] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0063] Embodiment 1:

[0064] An embodiment of the present invention provides a community screening system for sarcopenia, such as Figure 1 As shown, including:

[0065] A grip strength testing device 101, used to automatically test the grip strength of a subject;

[0066] The leg circumference measuring device 102 is used to automatically measure the leg circumference of the subject;

[0067] The stand-up and walk test device 103 is used to automatically measure the first time taken by the subject to stand up from the first seat and walk a preset distance to return to the first seat;

[0068] A sit-up test device 104, used for automatically measuring a second time taken by a subject to stand up from a second chair and sit down a preset number of times;

[0069] The body composition testing device 105 is used to measure and evaluate the body composition data of the subject based on the bioimpedance of the subject;

[0070] The data processing devices 106 are connected to the grip strength testing device, the leg circumference measuring device, the stand-up and walk testing device, the sit-up testing device and the body composition testing device, and are used to determine whether the subject has sarcopenia based on the subject's grip strength ability, leg circumference, first spent time, second spent time and body composition data.

[0071] In a specific implementation, each measuring or testing device implements automatic measurement or testing through voice broadcast guidance.

[0072] The following are the different devices introduced in turn:

[0073] like Figure 2 As shown, the grip strength testing device 101 comprises:

[0074] The first voice announcement module 1011 is used to guide the subject to perform a grip strength test;

[0075] A grip pressure plate 1012, used for the subject to grip and press;

[0076] The strain gauge 1013 is disposed below the grip pressure plate 1012 and is used to generate deformation based on the grip and pressure of the subject, thereby generating a changing voltage signal;

[0077] An amplifier circuit 1014, used to amplify the voltage signal;

[0078] The single chip computer 1015 is used to perform analog-to-digital conversion on the amplified voltage signal and determine the grip result after the grip is maintained for a preset time;

[0079] The first Lora module 1016 is connected to the single chip computer 1015 and is used to transmit the grip strength result to the data processing device 106 .

[0080] The mechanical structure of the grip test device is not limited. When the subject is guided to perform the grip test according to the first voice broadcast module 1011, the subject controls the grip pressure plate 1012 to hold and press, so that the strain gauge 1013 arranged below the grip pressure plate 1012 is deformed. The deformation causes the resistance to change, so the voltage also changes accordingly. The voltage signal is amplified by the amplifier circuit 1014, and then the analog-to-digital conversion is performed by the built-in ADC module of the single-chip computer 1015, so as to obtain the actual force value. When the grip remains unchanged for a preset time, the actual grip is determined and the test ends. The maximum value of the grip stability stage is determined as the grip ability of the subject. Among them, the single-chip computer 1015 adopts STM32F103C8T6. The amplifier circuit is mainly designed with the op07 operational amplifier chip.

[0081] After the grip strength of the subject is determined, it is transmitted to the data processing device 106 through the first Lora module 1016 .

[0082] like Figure 3 As shown, the leg circumference measuring device 102 comprises:

[0083] The second voice announcement module 1021 is used to guide the subject to measure the leg circumference;

[0084] Bracket 1022;

[0085] The annular ring 1023 is disposed on the bracket 1022. The annular ring 1023 is made of iron material. The circumference of the annular ring 1023 is greater than a preset size. The preset size is set based on a conventional leg circumference.

[0086] The wire displacement sensor 1024 includes: a reel, a driving motor and a measuring tape, wherein a soft electromagnetic material is arranged inside the measuring tape, and the measuring tape is rolled up on the reel;

[0087] The control module 1025 is connected to the annular ring and the wire displacement sensor;

[0088] Before the subject measures the leg circumference, the control module controls the electromagnetic material of the measuring tape to be energized so that the measuring tape is adsorbed on the annular ring 1023;

[0089] After the subject extends his leg into the annular ring, the control module 1025 controls the electromagnetic material of the measuring tape to be powered off, so that the measuring tape is tightened to the subject's calf under the action of the driving motor, so as to measure the leg circumference and obtain the leg circumference test result;

[0090] The second Lora module 1026 is connected to the control module 1025 and is used to transmit the leg circumference measurement result to the data processing device.

[0091] The leg circumference measurement here is a non-invasive and simple screening method, wherein the height of the bracket is adjustable to facilitate the leg circumference measurement of subjects of different heights. By sensing the calf height of different subjects, the height of the bracket is adjusted so that when the subject extends the leg into the annular ring 1023, it can be accurately positioned at the subject's calf position.

[0092] The second voice announcement module 1021 is used to guide the subject to extend his legs into the annular circle 1023 for a guiding operation.

[0093] Next, the control module 1025 controls the electromagnetic material of the measuring tape to be powered off, and controls the drive motor to drive the reel to rotate, so that the measuring tape wraps around the subject's calf, and determines the measurement result at this time. The control module uses STM32F103C8T6.

[0094] Finally, the measurement result is transmitted to the data processing device 106 through the second Lora module.

[0095] like Figure 4 As shown, the stand-up and walk test device 103 comprises

[0096] The third voice broadcast module 1031 is used to guide the subject to perform a sit-up and walk test;

[0097] The first seat 1032 is used to provide a sitting position for the subject;

[0098] The first seat 1032 is provided with a first piezoelectric film for detecting the standing up and sitting down of the subject;

[0099] The first timer 1033 is used to count the first time taken by the subject to stand up from the first seat and walk a preset distance to return to the first seat based on the subject's standing up and sitting down;

[0100] The third Lora module 1034 is connected to the first timer 1033 and is used to transmit the first elapsed time to the data processing device 106 .

[0101] In a specific implementation, the subject is guided to stand up and walk a preset distance according to the content broadcast by the third voice broadcast module 1031. For example, the timing starts from the first seat standing up, and the timing ends when the subject walks about 3 meters (an obstacle is set at the 3-meter position in advance) and then returns and sits down, thereby obtaining the first time spent.

[0102] The first time duration is then sent to the data processing device through the third Lora module 1034 .

[0103] The sit-up test device 104 has the same structure as the sit-up walk test device 103, and both are provided with a chair, and a piezoelectric film is provided on the chair. The difference lies in that the voice broadcast guidance is different, and the timing situation is also different, that is, the software setting is different.

[0104] The sit-up test device 104 is used to guide the subject to stand up and sit down five times on the second seat. Specifically, it can be judged whether the five standing up and sitting down are achieved according to the piezoelectric condition of the second piezoelectric film. Then, the second timer counts the second time spent to complete the five standing up and sitting down according to the standing up and sitting down conditions. Finally, the second time spent is transmitted to the data processing device through the fourth Lora module for reference.

[0105] The piezoelectric film provided in both the sit-up test device 104 and the stand-up walk test device 103 can be used as a seat cushion alone and can be rolled up when stored, so as to be convenient for use in censuses in various communities or door-to-door surveys.

[0106] like Figure 5 As shown, the body composition testing device 105 comprises:

[0107] The fifth voice announcement module 1051 is used to guide the subject to perform the body composition test;

[0108] A carrying platform 1052, on which a sampling electrode, a weighing device and a height collection device are arranged, the sampling electrode is used to contact the body part of the subject to obtain the bioelectrical impedance, the weighing device is used to weigh the subject, and the height sampling device is used to measure the height of the subject;

[0109] A processing module 1053, connected to the carrier 1052, for determining the body composition data of the subject based on the height, weight and bioelectrical impedance of the subject;

[0110] The fifth Lora module 1054 , connected to the processing module 1053 , is used to transmit the body composition data of the subject to the data processing device 106 .

[0111] The sampling electrodes on the carrier 1052 are specifically 8 sampling electrodes, which are used to contact the hands and feet of the subject. Therefore, the fifth voice broadcast module 1051 guides the subject to take off the socks and fit the corresponding electrode positions on the carrier 1052. According to the instructions, the subject also fits the hands to the corresponding electrode positions and stands still. At the same time, the subject is weighed by the weighing device and the height sampling device is used to measure the height, weight and bioelectrical impedance, thereby calculating the subject's body composition data, including protein content, fat content, etc. Then, the body composition data is transmitted to the data processing module 106 through the fifth Lora module 1054.

[0112] In order to be able to correspond the data measured or tested by each subject to the corresponding subject one by one, the data can be recorded in order by queuing. Specifically, the grip test device 101, the leg circumference measurement device 102, the stand-up and walk test device 103, the sit-up test device 104 and the body composition test device are arranged in sequence, and the subjects also line up in order to perform grip test, leg circumference measurement, stand-up and walk test, sit-up test and body composition test in sequence. In order, the subjects line up in sequence. Thus, the grip ability, leg circumference, first time spent, second time spent and body composition data of each subject are obtained.

[0113] In order to further integrate the gripping ability, leg circumference, first time spent, second time spent and body composition data of the same subject, the system also sets scanning modules on the gripping test device 101, the leg circumference test device 102, the stand-up walking test device 103 and the body composition test device respectively, and the scanning module scans the displacement identification information carried by the subject, so that the data processing device can integrate the gripping ability, leg circumference, first time spent, second time spent and body composition data of the same subject based on the unique identification information. Specifically, these test or measurement devices carry the unique identification information when sending data, so that the unique identification information of the same subject is the same.

[0114] By adopting the Lora module, low-power data transmission can be achieved, and the anti-interference ability is also strong.

[0115] Finally, the data processing device 106 analyzes each measurement or test data of the same subject. For example, the grip strength must reach 20kg to be considered normal, otherwise it is abnormal; the leg circumference must be less than 34cm to be considered normal, otherwise it is abnormal. The first time spent on the stand-up and walk test must be less than 11s, otherwise it is abnormal. The second time spent on the sit-up test must be less than 12s, otherwise it is abnormal; the body composition data must meet the standard indicators, otherwise it is also abnormal.

[0116] Of course, the above standards are set differently for different groups of people and are not limited here.

[0117] The present invention adopts the above-mentioned sarcopenia community screening system, which does not require the cooperation of too many service personnel. The subjects can independently complete various tests or measurements under the guidance of voice broadcasts and quickly complete the screening of sarcopenia.

[0118] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0119] The present invention provides a community screening system for sarcopenia, comprising: a grip strength testing device, used for automatically testing the grip strength ability of a subject; a leg circumference measuring device, used for automatically measuring the leg circumference of the subject; a stand-up and walk testing device, used for automatically measuring a first time taken by the subject to stand up from a first seat and walk a preset distance forward and then return to the first seat; a sit-up testing device, used for automatically measuring a second time taken by the subject to stand up and sit down from a second seat a preset number of times; a body composition testing device, used for measuring and evaluating the body composition data of the subject based on the subject's human bioimpedance; a data processing device, all connected to the grip strength testing device, the leg circumference measuring device, the stand-up and walk testing device, the sit-up testing device and the body composition testing device, used for judging whether the subject has sarcopenia based on the subject's grip strength ability, leg circumference, the first time taken, the second time taken and the body composition data, and automatically completing the testing function through each testing device, which not only improves the screening efficiency, but also improves the screening environment, so that the screening is carried out in an orderly manner.

[0120] Embodiment 2

[0121] Based on the same inventive concept, the embodiment of the present invention also provides a community screening and statistical system for sarcopenia, such as Figure 6 As shown, including:

[0122] The sarcopenia community screening system 601 provided in the first embodiment;

[0123] The cloud server 602 is connected to the sarcopenia community screening systems 601 located in different communities, and is used to generate resource demand situations for different communities based on the screening results of the sarcopenia community screening systems in different communities, so as to prompt different communities to make improvements.

[0124] Each community has its own surrounding environment, diet, sunlight or architecture, which may result in residents showing the same tendency of diseases or physical fitness. For example, during the sarcopenia screening, it was generally found that the residents of community A had higher levels of stand and walk test than those of residents of other communities. However, the body composition test data was lower than that of residents of other communities. Therefore, in response to this phenomenon, residents of community A need to be reminded to pay attention to a balanced diet and proper exercise.

[0125] Of course, by comparing multiple communities and residents of the same age group, we can also provide improvement suggestions for corresponding weakness tests for residents of the same age group, which will not be elaborated in detail here.

[0126] By comparing and screening different communities, we can provide more suggestions for improvement and reasonably improve the level of community health management.

[0127] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0128] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A community screening system for sarcopenia, characterized in that: include A grip strength testing device, used to automatically test the grip strength of a subject; A leg circumference measuring device, used for automatically measuring the leg circumference of a subject; A stand-up and walk test device, used to automatically measure the first time taken by a subject to stand up from a first seat and walk a preset distance forward and then return to the first seat; A sit-up test device, used for automatically measuring a second time taken by a subject to stand up and sit down from a second seat for a preset number of times; A body composition testing device, used to measure and evaluate the body composition data of the subject based on the subject's human body bioimpedance; The data processing devices are connected to the grip strength testing device, the leg circumference measuring device, the stand-up and walk testing device, the sit-up testing device and the body composition testing device, and are used to determine whether the subject has sarcopenia based on the subject's grip strength ability, leg circumference, first spent time, second spent time and body composition data.

2. The system according to claim 1, characterized in that The grip strength testing device, the leg circumference measuring device, the stand-up and walk testing device, the sit-up and walk testing device, and the body composition testing device are arranged in sequence.

3. The system according to claim 1, characterized in that The grip strength testing device comprises: The first voice broadcast module is used to guide the subject to perform a grip strength test; A grip pressure plate, used for subjects to grip and press; A strain gauge is disposed below the grip pressure plate and is used to generate deformation based on the grip pressure of the subject, thereby generating a changing voltage signal; an amplifier circuit, used for amplifying the voltage signal; A single chip microcomputer is used to perform analog-to-digital conversion on the amplified voltage signal and determine the grip result after the grip is maintained for a preset time; The first Lora module is connected to the single chip microcomputer and is used to transmit the grip strength result to the data processing device.

4. The system according to claim 1, characterized in that The leg circumference measuring device comprises: The second voice broadcast module is used to guide the subject to measure the leg circumference; Bracket; An annular ring is arranged on the bracket, the annular ring is made of iron material, and the circumference of the annular ring is greater than a preset size, and the preset size is set based on a conventional leg circumference; The wire displacement sensor comprises: a reel, a driving motor and a measuring tape, wherein a soft electromagnetic material is arranged inside the measuring tape, and the measuring tape is rolled up on the reel; A control module, connecting the annular ring and the wire displacement sensor; Before the subject measures the leg circumference, the control module controls the electromagnetic material of the measuring tape to be energized so that the measuring tape is adsorbed on the annular ring; After the subject extends his leg into the annular ring, the control module controls the electromagnetic material of the measuring tape to be powered off, so that the measuring tape is tightened to the subject's calf under the action of the driving motor, so as to measure the leg circumference and obtain the leg circumference test result; The second Lora module is connected to the control module and is used to transmit the leg circumference measurement result to the data processing device.

5. The system according to claim 1, wherein: The stand-up and walk test device comprises: The third voice broadcast module is used to guide the subject to perform the sit-up and walk test; The first seat is used to provide a sitting position for the subject. The first seat is provided with a first piezoelectric film for detecting the standing up and sitting down of the subject; A first timer is used to count the first time taken by the subject to stand up from the first seat and walk a preset distance before returning to the first seat based on the subject's standing up and sitting down; The third Lora module is connected to the first timer and is used to transmit the first elapsed time to the data processing device.

6. The system according to claim 1, wherein: Sit-up test device, comprising: The fourth voice broadcast module is used to guide the subject to perform a sit-up test; The second seat is used to provide a sitting position for the subject; The second seat is provided with a second piezoelectric film for detecting the standing up and sitting down of the subject; A second timer is used to count a second time spent by the subject standing up and sitting down a preset number of times on the second chair based on the subject's standing up and sitting down; The fourth Lora module is connected to the second timer and is used to transmit the second time duration to the data processing device.

7. The system according to claim 1, characterized in that Body composition testing device, comprising: The fifth voice broadcast module is used to guide the subject to perform the body composition test; A carrying platform, on which a sampling electrode, a weighing device and a height collection device are arranged, the sampling electrode is used to contact the body part of the subject to obtain the bioelectrical impedance, the weighing device is used to weigh the subject, and the height sampling device is used to measure the height of the subject; A processing module, connected to the carrier platform, for determining the body composition data of the subject based on the height, weight and bioelectrical impedance of the subject; The fifth Lora module, a connection processing module, is used to transmit the body composition data of the subject to a data processing device.

8. The system of claim 1, wherein: The system further comprises: The scanning module provided on the grip strength test device, the leg circumference test device, the stand-up and walk test device, the sit-up and stand test device, and the body composition test device is used for: The unique identification information carried by the subject is scanned so that the data processing device can integrate the gripping ability, leg circumference, first time spent, second time spent and body composition data of the same subject based on the unique identification information.

9. A community screening and statistical system for sarcopenia, characterized in that: include: The sarcopenia community screening system according to any one of claims 1 to 8; The cloud server connects the sarcopenia community screening systems located in different communities and is used to generate resource demand situations for different communities based on the screening results of the sarcopenia community screening systems in different communities, so as to prompt different communities to make improvements.

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