A method of assisting diaphragmatic breathing with a training belt with sensors

Abstract

The application provides a method for assisting abdominal respiration by using training belts with sensors, two training belts are adopted, a sensor in one training belt is arranged on the abdomen of a user, and a sensor in the other training belt is arranged on the chest of the user; when the user is training, firstly, the output values of the sensors arranged on the abdomen and the chest of the user in the breath-holding state and the abdominal exhalation and abdominal inhalation state are collected; if the output values basically meet the requirements of abdominal respiration, the output values are set as the reference values of the user; the output values of the sensors collected in the subsequent training are compared with the reference values; whether the breathing method of the user is correct and whether the training effect is improved are judged according to the comparison result; if not, the collection is re-performed. The method can set the reference values according to the actual situation of the user, is suitable for each independent user, and the user can train according to the actual situation of the user.

Description

Technical Field

[0001] This invention belongs to the field of respiratory movement assist system and sensing technology, and particularly relates to a method for assisting abdominal breathing using a training belt with sensors. Background Technology

[0002] Breathing is a basic life activity of the human body, providing sufficient oxygen to maintain normal metabolism and movement.

[0003] Breathing generally includes thoracic breathing and abdominal breathing. Thoracic breathing helps maintain an open chest and strengthens the rib muscles around the chest, but it is inefficient, laborious, and inhales relatively little air. Furthermore, thoracic breathing is dominated by the upper chest muscles, which can inhibit activities that rely on upper muscles in daily life (such as vocal exercises). Abdominal breathing is achieved by increasing the movement of the diaphragm and reducing chest cavity movement, allowing for full activation of the abdominal organs, promoting blood circulation, and potentially strengthening their function. Compared to thoracic breathing, abdominal breathing reduces muscle usage, increases gas exchange, increases lung capacity, improves cardiopulmonary function, lowers heart rate and blood pressure, relieves tension and stress, stimulates intestinal peristalsis, promotes blood circulation in the digestive tract, and reduces constipation; improves abdominal muscle strength and endurance, tightens the core, and shapes a good physique. Therefore, abdominal breathing is widely used in leisure and relaxation, vocal activities, fitness exercises, health maintenance, and rehabilitation training.

[0004] In diaphragmatic breathing, the common inhalation and exhalation methods are as follows: During inhalation, the diaphragm descends, the abdominal muscles expand, and the internal organs are compressed, causing the abdomen to expand rather than the chest. Inhale as deeply as you feel comfortable. During exhalation, the abdomen contracts, the diaphragm rises, and air is expelled. Compared to thoracic breathing, diaphragmatic breathing primarily involves the rise and fall of the abdomen, while the rise and fall of the chest cavity is relatively small.

[0005] To improve the effectiveness of diaphragmatic breathing, a training device is generally used to assist diaphragmatic breathing. A preferred training device is a training belt with a sensor. The training belt is worn during training, and the sensor is located on the abdomen. When the abdomen rises and falls during diaphragmatic breathing, it causes changes in the output signal of the sensor. By monitoring this output signal and comparing it with a set threshold, the changes in the exhalation and inhalation states during diaphragmatic breathing can be obtained, thereby determining whether the trainee's exhalation and inhalation methods are correct and providing guidance.

[0006] For example, patent document CN201810643690.0 discloses an intelligent abdominal breathing exercise device, including a waist belt and a displacement sensor. When a person performs abdominal breathing, the waist belt is worn. The displacement sensor moves back and forth perpendicular to the abdomen, generating a displacement signal and transmitting it to the processor. When at rest, the displacement sensor signal is zero; when the abdomen is contracted, the displacement sensor generates a positive or negative displacement signal; and when the abdomen protrudes, the displacement sensor generates the opposite negative or positive displacement signal. When the absolute value of the negative or positive displacement signal is greater than a preset threshold, the processor transmits an encouragement signal to the sound module. When the sound module receives the encouragement signal, it emits an encouragement sound.

[0007] However, in actual training, it has been found that many trainees, due to their habit of chest breathing, often incorporate chest breathing techniques when performing abdominal breathing, causing significant chest rise and fall. This indicates an incomplete understanding of abdominal breathing, resulting in insufficient depth of inhalation and exhalation, thus failing to fully achieve the training, relaxation, and health benefits. When using the above methods to assist abdominal breathing, the sensors only monitor abdominal rise and fall and judge the inhalation and exhalation states based solely on these changes. Therefore, they cannot comprehensively reflect the body's changes during abdominal breathing, making it impossible to accurately determine whether the abdominal breathing method is completely correct and thus hindering effective guidance.

[0008] Furthermore, when using a training belt with sensors to assist diaphragmatic breathing, diaphragmatic inhalation and exhalation thresholds are typically set. The sensor's output signal is compared with the set thresholds to determine whether the trainee's breathing method during diaphragmatic inhalation and exhalation is correct and whether the breathing effect has improved. However, individual differences exist among trainees, and the set thresholds are not applicable to every trainee. Therefore, this method cannot accurately determine whether each trainee's breathing method is correct or whether the training effect has improved. Summary of the Invention

[0009] In view of the above-mentioned technical status, the present invention provides a method for assisting abdominal breathing using a training belt with sensors. This method sets thresholds according to the specific situation of each trainee, and has individual applicability. When trainees perform abdominal breathing, using this method can improve the accuracy of judging whether the exhalation and inhalation methods are correct, thereby improving the effectiveness of training guidance.

[0010] The technical solution provided by this invention is: a method for assisting abdominal breathing using a training belt with sensors, wherein two training belts are set up, and each training belt is equipped with a sensor; Users wear these two training straps while performing diaphragmatic breathing. One training strap has a sensor placed on the user's abdomen to monitor the rise and fall of the abdomen during diaphragmatic breathing; the other training strap has a sensor placed on the user's chest to monitor the rise and fall of the chest during diaphragmatic breathing. The method includes the following steps: (1) Set reference value Y 腹部-屏气 Y 胸部-屏气 Y 腹部-吸气 Y 胸部-吸气 Y 腹部-呼气 Y 胸部-呼气 This includes the following steps (1-0) to (1-7): (1-0) The user wears the training strap and restarts both sensors; The user holds their breath in a certain posture, and the output value of the sensor located on the user's abdomen is recorded, denoted as Y. 腹部-屏气 And record the output value of the sensor set on the user's chest, denoted as Y. 胸部-屏气 ; The user maintains the aforementioned posture and performs one abdominal breath, i.e., abdominal inhalation and abdominal exhalation. The output value of the sensor located on the user's abdomen during abdominal inhalation is recorded and denoted as Y. 腹部-吸气 And record the output value of the sensor set on the user's chest, denoted as Y. 胸部-吸气 Record the output value of the sensor placed on the user's abdomen during diaphragmatic exhalation, denoted as Y. 腹部-呼气 And record the output value of the sensor set on the user's chest, denoted as Y. 胸部-呼气 ; (1-1) According to Y 腹部-屏气 With Y 腹部-吸气 If the abdomen bulges during abdominal inhalation compared to breath-holding, proceed to step (1-2); otherwise, proceed to step (1-0). (1-2) According to Y 腹部-屏气 With Y 腹部-呼气 If the abdomen contracts during abdominal exhalation compared to breath-holding, proceed to step (1-3); otherwise, proceed to step (1-0). (1-3) According to Y 腹部-吸气 With Y 胸部-吸气 If the bulge of the abdomen is greater than that of the chest, proceed to step (1-4); otherwise, proceed to step (1-0). (1-4) According to Y 腹部-呼气 With Y 胸部-呼气 If the abdominal contraction amplitude is larger than that of the chest, then proceed to step (2); otherwise, proceed to step (1-0). (2) The user performs abdominal breathing training, including the following steps (2-0) to (2-6): (2-0) The user performs abdominal breathing, and the output value of the sensor placed on the user's abdomen is recorded as y. 腹部 And record the output value of the sensor set on the user's chest, denoted as y. 胸部; (2-1) According to y 胸部 With Y 胸部-吸气 Determine if the result is the same as Y. 胸部-吸气 If the breast augmentation is smaller, proceed to step (2-2); otherwise, proceed to step (2-6). (2-2) According to y 腹部 With Y 腹部-屏气 If the abdomen bulges compared to holding one's breath, proceed to step (2-4); otherwise, proceed to step (2-3). (2-3) According to y 腹部 With Y 腹部-屏气 If the abdomen contracts compared to holding one's breath, proceed to step (2-5); otherwise, proceed to step (2-6). (2-4) Determine that the training state at this time is normal abdominal inhalation; As a preferred option, according to y 腹部 With Y 腹部-吸气 Determine if the result is the same as Y. 腹部-吸气 Compared to the previous method, a greater degree of abdominal bulging indicates a more effective abdominal inhalation; conversely, a smaller degree of abdominal bulging indicates a less effective abdominal inhalation. As a further optimization, according to y 腹部 With Y 腹部-吸气 Determine if the result is the same as Y. 腹部-吸气 In comparison, the degree of abdominal distension is greater, and, according to y 胸部 With Y 胸部-吸气 Determine if the result is the same as Y. 胸部-吸气 In comparison, a smaller chest expansion (the smaller the chest change during abdominal breathing, the better) indicates a significantly improved effect of abdominal inhalation; conversely, a larger chest expansion indicates a reduced effect of abdominal inhalation. (2-5) Determine that the training state at this time is normal abdominal exhalation; As a preferred option, according to y 腹部 With Y 腹部-呼气 Determine if the result is the same as Y. 腹部-呼气 Compared to the previous method, a greater degree of abdominal contraction indicates a more effective abdominal exhalation; conversely, a smaller degree of contraction indicates a less effective abdominal exhalation. As a further optimization, according to y 腹部 With Y 腹部-呼气 Determine if the result is the same as Y. 腹部-呼气 In comparison, the amplitude of abdominal contraction increases, and, according to y 胸部 With Y 胸部-呼气 Determine if the result is the same as Y. 胸部-呼气 In comparison, a smaller chest contraction (the smaller the chest change during abdominal breathing, the better) indicates a significantly improved effect of abdominal exhalation; conversely, a larger chest contraction indicates a reduced effect of abdominal exhalation. (2-6) Determine that the training state is incorrect at this time.

[0011] Breath-holding refers to the user neither inhaling nor exhaling.

[0012] The material of the training belt is not limited, but preferably, the training belt is made of a stretchable and flexible material.

[0013] Preferably, the sensor is a flexible sensor that can detect changes in the abdomen or chest when they rise or fall or contract.

[0014] The type of sensor is not limited; for example, it can be a displacement sensor, a capacitance sensor, a resistance sensor, etc.

[0015] (a) When the sensor is a capacitive sensor The sensor output value is the capacitance value, represented by C instead of Y. The capacitance value increases when the abdomen bulges and decreases when the abdomen contracts. Therefore: In step (1-1), compare C 腹部-屏气 With C 腹部-吸气 When C 腹部-屏气 <C 腹部-吸气 If the abdomen bulges, it indicates that the abdomen has shrunk; otherwise, it indicates that the abdomen has contracted or remains unchanged. In steps (1-2), compare C 腹部-屏气 With C 腹部-呼气 When C 腹部-屏气 >C 腹部-呼气 If the abdomen contracts, it indicates that the abdomen is contracting; otherwise, it indicates that the abdomen is bulging or the abdomen does not change. In steps (1-3), compare C 腹部-吸气 With C 胸部-吸气 When C 腹部-吸气 >C 胸部-吸气 If the bulge is large, it means that the abdominal bulge is larger than the chest; conversely, if the bulge is small or equal to the chest, it means that the abdominal bulge is smaller than the chest. In steps (1-4), compare C 腹部-呼气 With C 胸部-呼气 When C 腹部-呼气 <C 胸部-呼气 If the contraction amplitude is greater than that of the chest, it indicates that the contraction amplitude of the abdomen is smaller or equal to that of the chest. In step (2-1), compare c 胸部 With C 胸部-吸气 When c 胸部 <C 胸部-吸气 This indicates that it is related to C. 胸部-吸气 Compared to a smaller breast augmentation, the opposite indicates a C-cup. 胸部-吸气 Compared to a larger or equal increase in breast size; In steps (2-2) and (2-3), compare c 腹部 With C 腹部-屏气 When c 腹部 >C 腹部-屏气 This indicates that the abdomen bulges compared to holding one's breath. When c 腹部 <C 腹部-屏气 This indicates that the abdomen contracts compared to holding one's breath.

[0016] In steps (2-4), compare c 腹部 With C 腹部-吸气 When c 腹部 >C 腹部-吸气 If the abdominal expansion is greater than the set abdominal inhalation level, it indicates that the abdominal inhalation effect has improved; conversely, if the abdominal expansion is less or unchanged compared to the set abdominal inhalation level, it indicates that the abdominal inhalation effect has not improved. As a further optimization, compare with c... 腹部 With C 腹部-吸气 And compare with c 胸部 With C 胸部-吸气 When c 腹部 >C 腹部-吸气 And c 胸部 <C 胸部-吸气 (The smaller the chest rise during abdominal inhalation, the better the effect of abdominal inhalation.) This indicates that compared with the set abdominal inhalation, the abdominal rise is significantly larger this time, and the effect of abdominal inhalation is significantly improved.

[0017] In steps (2-5), compare c 腹部 With C 腹部-呼气 When c is obtained 腹部 <C 腹部-呼气 If the abdominal contraction amplitude is greater than the set abdominal exhalation amplitude, the effect of this abdominal exhalation is considered improved. Conversely, if the abdominal contraction amplitude is less or unchanged compared to the set abdominal exhalation amplitude, the effect of this abdominal exhalation is considered not improved. As a further optimization, compare with c... 腹部 With C 腹部-呼气 And compare with c 胸部 With C 胸部-呼气 When c 腹部 <C 腹部-呼气 And c 胸部 >C 胸部-呼气 (The smaller the chest contraction amplitude during abdominal exhalation, the better the effect of abdominal exhalation), which means that compared with the set abdominal exhalation, the abdominal contraction amplitude is significantly increased this time, indicating that the effect of abdominal exhalation is significantly improved.

[0018] (ii) When the sensor is a displacement sensor The sensor output value is a displacement value, represented by L instead of Y. The displacement value increases when the abdomen bulges and decreases when the abdomen contracts. Therefore: In step (1-1), compare L 腹部-屏气 With L 腹部-吸气 When L 腹部-屏气 <L 腹部-吸气 If the abdomen bulges, it indicates that the abdomen has shrunk; otherwise, it indicates that the abdomen has contracted or remains unchanged. In steps (1-2), compare L 腹部-屏气 With L 腹部-呼气 When L 腹部-屏气 >L 腹部-呼气 If the abdomen contracts, it indicates that the abdomen is contracting; otherwise, it indicates that the abdomen is bulging or the abdomen does not change. In steps (1-3), compare L 腹部-吸气 With L 胸部-吸气 When L 腹部-吸气 >L 胸部-吸气 If the bulge is large, it means that the abdominal bulge is larger than the chest; conversely, if the bulge is small or equal to the chest, it means that the abdominal bulge is smaller than the chest. In steps (1-4), compare L 腹部-呼气 With L 胸部-呼气 When L 腹部-呼气 <L 胸部-呼气 If the contraction amplitude is greater than that of the chest, it indicates that the contraction amplitude of the abdomen is smaller or equal to that of the chest. In step (2-1), compare l 胸部 With L 胸部-吸气 When l 胸部 <L 胸部-吸气 This indicates that it is related to L. 胸部-吸气 Compared to a smaller breast augmentation, the opposite indicates a smaller breast enlargement, or vice versa. 胸部-吸气 Compared to a larger or equal increase in breast size; In steps (2-2) and (2-3), compare l 腹部 With L 腹部-屏气 When l 腹部 >L 腹部-屏气 This indicates that the abdomen bulges compared to holding one's breath. 腹部 <L 腹部-屏气 This indicates that the abdomen contracts compared to holding one's breath.

[0019] In steps (2-4), compare l 腹部 With L 腹部-吸气 When l 腹部 >L 腹部-吸气If the abdominal expansion is greater than the set abdominal inhalation level, it indicates that the abdominal inhalation effect has improved; conversely, if the abdominal expansion is less or unchanged compared to the set abdominal inhalation level, it indicates that the abdominal inhalation effect has not improved. As a further optimization, compare l... 腹部 With L 腹部-吸气 And comparison l 胸部 With L 胸部-吸气 When l 腹部 >L 腹部-吸气 , and l 胸部 <L 胸部-吸气 (The smaller the chest rise during abdominal inhalation, the better the effect of abdominal inhalation.) This indicates that compared with the set abdominal inhalation, the abdominal rise is significantly larger this time, and the effect of abdominal inhalation is significantly improved.

[0020] In steps (2-5), compare l 腹部 With L 腹部-呼气 When l 腹部 <L 腹部-呼气 If the abdominal contraction is greater than the set abdominal exhalation level, it indicates that the abdominal exhalation effect has improved; conversely, if the abdominal contraction is less than the set abdominal exhalation level, it indicates that the abdominal exhalation effect has not improved. As a further optimization, compare l... 腹部 With L 腹部-呼气 And comparison l 胸部 With L 胸部-呼气 When l 腹部 <L 腹部-呼气 , and l 胸部 >L 胸部-呼气 (The smaller the chest contraction during abdominal exhalation, the better the effect of abdominal exhalation) indicates that the abdominal contraction is significantly greater than the set abdominal exhalation, and the effect of this abdominal exhalation is significantly improved.

[0021] (iii) When the sensor is a resistance sensor The sensor output value is a resistance value, represented by R instead of Y. The resistance value output by the sensor increases when the abdomen bulges and decreases when the abdomen contracts. Therefore: In step (1-1), compare R 腹部-屏气 With R 腹部-吸气 When R 腹部-屏气 <R 腹部-吸气 If the abdomen bulges, it indicates that the abdomen has shrunk; otherwise, it indicates that the abdomen has contracted or remains unchanged. In steps (1-2), compare R 腹部-屏气 With R 腹部-呼气 When R 腹部-屏气 >R 腹部-呼气If the abdomen contracts, it indicates that the abdomen is contracting; otherwise, it indicates that the abdomen is bulging or the abdomen does not change. In steps (1-3), compare R 腹部-吸气 With R 胸部-吸气 When R 腹部-吸气 >R 胸部-吸气 If the bulge is large, it means that the abdominal bulge is larger than the chest; conversely, if the bulge is small or equal to the chest, it means that the abdominal bulge is smaller than the chest. In steps (1-4), compare R 腹部-呼气 With R 胸部-呼气 When R 腹部-呼气 <R 胸部-呼气 If the contraction amplitude is greater than that of the chest, it indicates that the contraction amplitude of the abdomen is smaller or equal to that of the chest. In step (2-1), compare r 胸部 With R 胸部-吸气 When r 胸部 <R 胸部-吸气 This indicates that it is related to R. 胸部-吸气 Compared to a smaller breast augmentation, the opposite indicates a smaller breast augmentation. 胸部-吸气 Compared to a larger or equal increase in breast size; In steps (2-2) and (2-3), the comparison of r 腹部 With R 腹部-屏气 When r 腹部 >R 腹部-屏气 This indicates that the abdomen bulges compared to holding one's breath, when r 腹部 <R 腹部-屏气 This indicates that the abdomen contracts compared to holding one's breath.

[0022] In steps (2-4), compare r 腹部 With R 腹部-吸气 When r 腹部 >R 腹部-吸气 If the abdominal expansion is greater than the set abdominal inhalation level, it indicates that the abdominal inhalation effect has improved; conversely, if the abdominal expansion is less or unchanged compared to the set abdominal inhalation level, it indicates that the abdominal inhalation effect has not improved. As a further optimization, compared to r... 腹部 With R 腹部-吸气 And compared to r 胸部 With R 胸部-吸气 When r 腹部 >R 腹部-吸气 And r 胸部 <R 胸部-吸气 (The smaller the chest rise during abdominal inhalation, the better the effect of abdominal inhalation.) This indicates that compared with the set abdominal inhalation, the abdominal rise is significantly larger this time, and the effect of abdominal inhalation is significantly improved.

[0023] In steps (2-5), compare r 腹部 With R 腹部-呼气 When r is obtained 腹部 <R 腹部-呼气 If the abdominal contraction is greater than the set abdominal exhalation level, it indicates that the abdominal exhalation effect has improved; conversely, if the abdominal contraction is less than the set abdominal exhalation level, it indicates that the abdominal exhalation effect has not improved. As a further optimization, compared to r... 腹部 With R 腹部-呼气 And compared to r 胸部 With R 胸部-呼气 When r 腹部 <R 腹部-呼气 And r 胸部 >R 胸部-呼气 (The smaller the chest contraction amplitude during abdominal exhalation, the better the effect of abdominal exhalation) indicates that compared with the set abdominal exhalation, the abdominal contraction amplitude is significantly increased this time, and it is judged that the effect of abdominal exhalation is significantly improved.

[0024] Preferably, step (1) further includes the following steps (1-5) and (1-6): (1-5) According to Y 胸部-屏气 With Y 胸部-吸气 If, compared to holding one's breath, the chest expands or remains unchanged during abdominal inhalation, proceed to step (1-6); otherwise, proceed to step (1-0). (1-6) According to Y 胸部-屏气 With Y 胸部-呼气 If the chest contracts or remains unchanged during abdominal exhalation compared to breath-holding, then proceed to step (2); otherwise, proceed to step (1-0). In diaphragmatic breathing, if the user has mastered the correct breathing method, the chest cavity changes less during breathing. 胸部-吸气 Y 胸部-呼气 Y 胸部-屏气 Since the values ​​are close, if training reveals that the user has basically mastered the correct breathing method, the output value Y of the sensor located on the user's chest does not need to be recorded when the user holds their breath in step (1-0). 胸部-屏气 .

[0025] Preferably, the two training bands have the same structure, and the sensors within them have the same structure.

[0026] Preferably, in step (2-4), it is determined that the training state is normal abdominal inhalation, and inhalation-related information is displayed on the terminal APP.

[0027] Preferably, in step (2-5), it is determined that the training state is normal abdominal exhalation, and exhalation-related information is displayed on the terminal APP.

[0028] Preferably, if the training status is found to be incorrect in step (2-6), the terminal APP will remind the patient to keep their chest unchanged when breathing.

[0029] Preferably, the user is taught the correct abdominal breathing method before step (1). More preferably, the user can perform some abdominal breathing training before step (1), thereby improving the efficiency of setting reference values.

[0030] Compared with the prior art, the present invention has the following beneficial effects: (1) This invention uses two training belts with sensors for auxiliary training in abdominal breathing. The sensor on one training belt is placed on the user's abdomen, and the sensor on the other training belt is placed on the user's chest. When the user is training, the output values ​​of the sensor on the abdomen and the sensor on the chest are collected first when the user is holding their breath, in abdominal exhalation, and in abdominal inhalation. These output values ​​are comprehensively examined. If these output values ​​basically meet the requirements of abdominal breathing, they are set as reference values ​​for the user. The sensor output values ​​collected in subsequent training are compared with these reference values. The comparison results are used to determine whether the user's breathing method is correct and whether the training effect has improved. If these output values ​​do not meet the basic requirements of abdominal breathing, they are collected again. This method can set reference values ​​according to the user's actual situation and is applicable to each individual user. Users can train according to their own actual situation.

[0031] (2) When setting the reference value, the present invention combines the output value of the sensor set on the abdomen and the output value of the sensor set on the chest. That is, in abdominal breathing, not only the changes in the abdomen are considered, but also the changes in the chest are considered. The correctness of the breathing method is judged from the overall changes in the user's abdomen and chest, which improves the accuracy of the judgment and thus improves the effectiveness of subsequent training guidance.

[0032] (3) The training method of the present invention is simple and easy to operate. Users can use this method to obtain the correct abdominal breathing method and can gradually and quickly improve according to their own situation.

[0033] The sensor in the training band of this invention can be a displacement sensor, a capacitance sensor, or a resistance sensor. When a flexible capacitive strain sensor is selected, in order to balance the sensor's good deformation capability and tensile strength, this invention also provides a flexible capacitive strain sensor with a stacked structure, which sequentially includes a first encapsulation layer, a first conductive layer, a dielectric layer, a second conductive layer, and a second encapsulation layer, and the first encapsulation layer, the first conductive layer, the dielectric layer, the second conductive layer, and the second encapsulation layer have deformation capability; A first limiting portion is provided between the first encapsulation layer and the first conductive layer; A second limiting portion is provided between the second encapsulation layer and the second conductive layer; Of the dielectric layer, the first conductive layer, the first limiting portion, and the first encapsulation layer, the first limiting portion has the greatest tensile strength. Among the dielectric layer, the second conductive layer, the second limiting portion, and the second encapsulation layer, the second limiting portion has the greatest tensile strength.

[0034] In actual stretching, for ease of stretching, it is preferable to provide stretching portions at both ends of the flexible capacitive strain sensor along the stretching direction, referred to as the first stretching portion and the second stretching portion.

[0035] The materials used to form the first and second encapsulation layers are not limited, including elastic fiber cloth, elastic silicone rubber, etc.

[0036] The materials used to form the first conductive layer and the second conductive layer are not limited, and include materials such as liquid metal slurry, elastic metal fiber cloth, elastic conductive silicone rubber, elastic conductive ionic liquid, and a mixture of elastic metal and elastomer.

[0037] The dielectric layer is not limited to any particular material, including fiber cloth, elastic silicone rubber, TPU, TPR, TPE, etc.

[0038] The materials used to construct the first limiting part are not limited, including carbon materials, metal materials, nylon, polytetrafluoroethylene and other polymer materials.

[0039] Generally, materials with higher tensile strength also have a higher tensile modulus, meaning they have lower deformation capacity. Therefore, compared to the dielectric layer, the first conductive layer, the first limiting portion, and the first encapsulation layer, the first limiting portion has a higher tensile modulus and lower deformation capacity, meaning it is less prone to deformation. Similarly, compared to the dielectric layer, the second conductive layer, the second limiting portion, and the second encapsulation layer, the second limiting portion has a higher tensile modulus and lower deformation capacity, meaning it is less prone to deformation. Therefore, in Figure 3In the structure shown, the deformation capability of the flexible capacitive strain sensor is directly limited by the deformation capability of each layer, resulting in a relatively small overall deformation capability. To balance the good tensile strength and overall deformation capability of the flexible capacitive strain sensor, it is preferable that one end of the first encapsulation layer and one end of the second encapsulation layer are directly connected to the first stretching portion, and the other end of the first encapsulation layer and the other end of the second encapsulation layer are directly connected to the second stretching portion. However, the two ends of the first limiting portion, the first conductive layer, the dielectric layer, the second conductive layer, and the second limiting portion are not directly connected to the first stretching portion and the second stretching portion. When stretched through the first stretching portion and the second stretching portion, the first encapsulation layer and the second encapsulation layer are directly stretched and deformed, causing the first limiting portion, the first conductive layer, the dielectric layer, the second conductive layer, and the second limiting portion to deform as well. In this structure, to improve deformation sensitivity, preferably, the tensile modulus of the first conductive layer (i.e., the tensile modulus of the first conductive layer; in this invention, the tensile modulus of a layer refers to the tensile modulus of the constituent material of that layer, and when the constituent material of that layer is a composite material, it refers to the tensile modulus of that composite material; in this invention, the tensile strength of a layer refers to the tensile strength of the constituent material of that layer, and when the constituent material of that layer is a composite material, it refers to the tensile strength of that composite material) is less than the tensile modulus of the first limiting portion, and the tensile modulus of the first limiting portion is less than the tensile modulus of the first encapsulation layer. More preferably, the tensile modulus of the dielectric layer is less than the tensile modulus of the first conductive layer. Similarly, preferably, the tensile modulus of the second conductive layer is less than the tensile modulus of the second limiting portion, and the tensile modulus of the second limiting portion is less than the tensile modulus of the second encapsulation layer. More preferably, the tensile modulus of the dielectric layer is less than the tensile modulus of the second conductive layer.

[0040] Furthermore, to balance the good tensile strength and overall deformation capacity of the first and second limiting portions, the first and second limiting portions are preferably elongated structures (i.e., their length is much greater than their cross-sectional diameter), with their length direction along the stretching direction, and their cross-sectional diameter preferably not greater than 10 mm, more preferably not greater than 2 mm, and most preferably not greater than 1 mm. As a further preferred embodiment, the first and second limiting portions are provided with pleated structures. With stretching, the pleated structures are stretched and unfolded, achieving length extension, thereby enabling the first and second limiting portions to achieve a certain degree of stretchability. As a preferred implementation, the elongated first and second limiting portions are wavy along the stretching direction, forming a pleated structure. Additionally, as a preferred implementation, the first limiting portions are located at both ends of the width direction of the first encapsulation layer, which is perpendicular to the stretching direction; the second limiting portions are located at both ends of the width direction of the second encapsulation layer, which is perpendicular to the stretching direction.

[0041] Preferably, the first and second stretching portions are made of a rigid material. For ease of stretching and use, preferably, the first and second stretching portions are designed in a shape that is easy to grip, such as a ring.

[0042] That is, the present invention provides a limiting part between the encapsulation layer and the conductive layer of the flexible capacitive strain sensor. Among the layers of the flexible sensor, the limiting part has the greatest tensile strength. Therefore, under the action of tensile force, even if the encapsulation layer breaks, the limiting part has high tensile strength, which can protect the conductive layer and the dielectric layer. This can protect the sensor, prevent the sensor from failing due to the breakage of the conductive layer and the dielectric layer, thus affecting the detection work, and improve the service life of the sensor. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the flexible breathing belt in Embodiment 1 of the present invention.

[0044] Figure 2 This is an exploded structural diagram of each layer of the flexible capacitive strain sensor in Embodiment 1 of the present invention.

[0045] Figure 3 yes Figure 2 A schematic diagram of the overall flexible capacitive strain gauge sensor after the layers are assembled.

[0046] Figure 4 This is an exploded structural diagram of the control box in Embodiment 1 of the present invention.

[0047] Figure 5 This is a schematic diagram of the method of wearing the training belt when using the training belt to assist abdominal breathing in Embodiment 1 of the present invention.

[0048] Figure 6 This is a flowchart of the use of a training belt to assist abdominal breathing in Embodiment 1 of the present invention.

[0049] Figure 7 This is a flowchart of the reference value setting process in Embodiment 1 of the present invention.

[0050] The attached figures are labeled as follows: 1. Flexible capacitive strain sensor; 2. Extension strip; 3. Control box; 111. First encapsulation layer; 112. First rigid body; 113. First limiting portion; 114. First conductive unit; 115. First conductor; 121. Second encapsulation layer; 122. Second rigid body; 123. Second limiting portion; 124. Second conductive unit; 125. Second conductor; 131. First dielectric layer; 132. Second dielectric layer; 141. Ring structure; 151. First fixing male buckle; 152. Second fixing male buckle; 153. Third fixing male buckle; 31. Upper shell; 32. Lower shell; 33. Button; 34. Circuit board; 35. Battery; 361. First fixing female buckle; 362. Second fixing female buckle; 363. Detailed Implementation

[0051] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings. It should be noted that the embodiments described below are intended to facilitate the understanding of the present invention and do not limit it in any way. Example

[0052] like Figure 1 As shown, in this embodiment, the training belt includes a flexible capacitive strain sensor 1, an extension belt 2, and a control box 3.

[0053] like Figure 2-3 As shown, the flexible capacitive strain sensor has a stacked structure, which includes a first encapsulation layer 111, a first limiting portion 113, a first conductive layer, a dielectric layer, a second conductive layer, a second limiting portion 123, and a second encapsulation layer 121 in sequence.

[0054] In this embodiment, the first encapsulation layer 111 and the second encapsulation layer 121 are elastic fiber fabrics with a tensile elasticity of 90% (in this invention, tensile elasticity = (length after stretching - length before stretching) ÷ length before stretching × 100%), a tensile modulus of 34.08 MPa, and a tensile strength of 55.4 MPa.

[0055] In this embodiment, the first conductive layer consists of two symmetrical parts, each part being a first conductive unit 114 with a protruding structure, and the two protruding structures are connected by a first conductor 115; the second conductive layer consists of two symmetrical parts, each part being a second conductive unit 124 with a protruding structure, and the two protruding structures are connected by a second conductor 125. The first conductive unit 114 and the second conductive unit 124 are made of liquid metal with 100% tensile elasticity, and have a tensile modulus of 24.25 MPa and a tensile strength of 66.8 MPa.

[0056] In this embodiment, the dielectric layer is composed of a first dielectric layer 131 and a second dielectric layer 132. The first dielectric layer 131 and the second dielectric layer 132 are TPU films with a tensile elasticity of 120%, a tensile modulus of 14.86 MPa, and a tensile strength of 51.2 MPa.

[0057] In this embodiment, the first limiting portion 13 and the second limiting portion 23 are designed as slender structures, and can be made of nylon wire, carbon fiber wire, steel wire, polyethylene wire, etc. In this embodiment, polytetrafluoroethylene wire with a diameter of 0.16 mm is selected, with a tensile modulus of 29.77 MPa and a tensile strength of 151.6 MPa. Furthermore, in this embodiment, the polytetrafluoroethylene wire has a wavy structure along the stretching direction, allowing it to be stretched and extended during stretching, achieving 98% tensile elasticity. In this embodiment, the width direction of the first encapsulation layer 111 is perpendicular to the stretching direction, and the width direction of the second encapsulation layer 121 is also perpendicular to the stretching direction. The first limiting portion 113 is located at both ends of the width direction of the first encapsulation layer 111 and does not overlap with the first conductive layer; the second limiting portion 123 is located at both ends of the width direction of the second encapsulation layer 121 and does not overlap with the second conductive layer.

[0058] In this embodiment, a tension portion is provided at both ends of the flexible capacitive strain gauge sensor along the tension direction, referred to as the first tension portion and the second tension portion. In this embodiment, the first tension portion and the second tension portion are made of rigid polyurethane material and are designed as rings that are easy to grip.

[0059] In this embodiment, a first rigid body 112 is formed by bonding polyurethane films to both ends of the length of the surface of the first encapsulation layer 111; a first conductive layer is prepared by screen printing liquid metal paste onto the surface of the first encapsulation layer 111; polytetrafluoroethylene (PTFE) wires are hot-pressed to both ends of the width of the surface of the first encapsulation layer 111; and the first rigid body 112, the first conductive layer, and the PTFE wires do not overlap each other; a second rigid body 122 is formed by bonding polyurethane films to both ends of the length of the surface of the second encapsulation layer 121, and an annular structure 41 is embedded in the second rigid body 122. In this embodiment, the annular structure 41 is a metal ring; a second conductive layer is prepared by screen printing liquid metal paste onto the surface of the second encapsulation layer 121; PTFE wires are hot-pressed to both ends of the width of the surface of the second encapsulation layer 121; and the second rigid body 122, the second conductive layer 124, and the PTFE wires do not overlap each other.

[0060] In this embodiment, the first conductive layer 114 and the second conductive layer 124 are respectively disposed on the upper and lower surfaces of the dielectric layer. The first conductive layer, the dielectric layer and the second conductive layer are bonded together by a hot pressing method. The first encapsulation layer 111, the first rigid body 112, the second rigid body 122 and the second encapsulation layer 121 are bonded together.

[0061] In this embodiment, one end of the first encapsulation layer 111 and one end of the second encapsulation layer 121 are directly connected to the first stretching portion, and the other end of the first encapsulation layer 111 and the other end of the second encapsulation layer 121 are directly connected to the second stretching portion. However, the two ends of the first limiting portion, the first conductive layer, the dielectric layer, the second conductive layer, and the second limiting portion are not directly connected to the first stretching portion and the second stretching portion. When stretched through the first stretching portion and the second stretching portion, the first encapsulation layer and the second encapsulation layer are directly stretched and deformed, which in turn causes the first limiting portion, the first conductive layer, the dielectric layer, the second conductive layer, and the second limiting portion to deform.

[0062] In this embodiment, the overall tensile elasticity of the flexible capacitive strain sensor is 90%, which belongs to the category of large strain tensile sensors.

[0063] In this embodiment, the extension strip 2 is preferably made of inelastic flexible fabric, and its two ends are connected to the two ends of the flexible capacitive strain sensor 1 by Velcro.

[0064] like Figure 4 As shown, the control box includes an upper shell 31, a lower shell 32, buttons 33, a circuit board 34, and a battery 35. It features a first fixing female connector 361, a second fixing female connector 362, and a third fixing female connector 363. The circuit board 34 comprises a data acquisition unit, a data processing unit, and a data transmission module. The first fixing female connector 361, the second fixing female connector 362, and the third fixing female connector 363 are soldered to the circuit board, and their preferred positions form a triangular support.

[0065] A first fixing male buckle 151 is provided on the first conductor 115, connecting to a first fixing female buckle 361 on the control box; a second fixing male buckle 152 is provided on the second conductor, connecting to a second fixing female buckle 362 on the control box; a third fixing male buckle 153 is provided in the middle area between the first conductor 115 and the second conductor 125, connecting to a third fixing female buckle 363 on the control box. The first fixing male buckle 151, the second fixing male buckle 152, the third fixing male buckle 153, the first fixing female buckle 361, the second fixing female buckle 362, and the third fixing female buckle 363 are preferably one or more of magnetic snaps, buttons, and electrode buckles.

[0066] In this embodiment, the training belt can be used to assist abdominal breathing, for example, it can be applied to postpartum recovery, to restore the pelvic floor muscles and rectus abdominis muscles through abdominal breathing, so as to achieve the effect of fat reduction and body shaping.

[0067] When using this training belt to assist abdominal breathing, the user should prepare two training belts as described in this embodiment, such as... Figure 5As shown, the user wears these two training straps, designated as the first training strap 10 and the second training strap 20, while performing diaphragmatic breathing. The flexible capacitive strain sensor in the first training strap 10 is positioned on the user's abdomen to monitor the rise and fall of the abdomen during diaphragmatic breathing; the flexible capacitive strain sensor in the first training strap 20 is positioned on the user's chest to monitor the rise and fall of the chest during diaphragmatic breathing. The specific method is as follows... Figure 6-7 As shown, it includes the following steps: (1) Set reference value C 腹部-屏气 C 胸部-屏气 C 腹部-吸气 C 胸部-吸气 C 腹部-呼气 C 胸部-呼气 , specifically Figure 7 As shown, the steps (1-0) to (1-7) are as follows: (1-0) The user wears the training strap and restarts the sensor; The user holds their breath in a certain posture, and the output value of a flexible capacitive strain gauge sensor located on the user's abdomen is recorded, denoted as C. 腹部-屏气 And record the output value of the flexible capacitive strain sensor installed on the user's chest, denoted as C. 胸部-屏气 ; The user maintains the aforementioned posture and performs one abdominal breath, i.e., abdominal inhalation and abdominal exhalation. The capacitance value of the flexible capacitive strain gauge sensor placed on the user's abdomen during abdominal inhalation is recorded and denoted as C. 腹部-吸气 And record the capacitance value of a flexible capacitive strain gauge sensor placed on the user's chest, denoted as C. 胸部-吸气 Record the capacitance value of the flexible capacitive strain gauge sensor placed on the user's abdomen during abdominal exhalation, denoted as C. 腹部-呼气 And record the capacitance value of a flexible capacitive strain gauge sensor placed on the user's chest, denoted as C. 胸部-呼气 ; (1-1) Compare with C 腹部-屏气 With C 腹部-吸气 When C 腹部-屏气 <C 腹部-吸气 If the abdomen bulges compared to holding its breath, proceed to step (1-2); otherwise, if the abdomen contracts or remains unchanged compared to holding its breath, proceed to step (1-0). (1-2) Compare C 腹部-屏气 With C 腹部-呼气 When C 腹部-屏气 >C 腹部-呼气 If the abdomen contracts compared to holding its breath, proceed to step (1-3); otherwise, if the abdomen bulges or remains unchanged compared to holding its breath, proceed to step (1-0). (1-3) Compare C 腹部-吸气 With C 胸部-吸气When C 腹部-吸气 >C 胸部-吸气 If the bulge is larger than that of the chest, proceed to step (1-4); otherwise, if the bulge is smaller or equal to that of the chest, proceed to step (1-0). (1-4) Compare C 腹部-呼气 With C 胸部-呼气 When C 腹部-呼气 <C 胸部-呼气 If the contraction amplitude of the abdomen is greater than that of the chest, then proceed to step (2); otherwise, if the contraction amplitude of the abdomen is smaller or equal to that of the chest, then proceed to step (1-0). (2) The user performs abdominal breathing training, including the following steps (2-0) to (2-6): (2-0) The user performs abdominal breathing, and the capacitance value of the flexible capacitive strain gauge sensor placed on the user's abdomen is recorded, denoted as c. 腹部 And record the capacitance value of a flexible capacitive strain gauge sensor placed on the user's chest, denoted as c. 胸部 ; (2-1) Compare with c 胸部 With C 胸部-吸气 When c 胸部 <C 胸部-吸气 Explanation of C 胸部-吸气 If the breast augmentation is smaller, proceed to step (2-2); otherwise, it indicates a C-shaped reduction. 胸部-吸气 If the breast augmentation is larger or equal, proceed with steps (2-6). (2-2) Compare with c 腹部 With C 腹部-屏气 When c 腹部 >C 腹部-屏气 If the abdomen bulges compared to holding your breath, proceed to step (2-4); otherwise, proceed to step (2-3). (2-3) Compare with c 腹部 With C 腹部-屏气 When c 腹部 <C 腹部-屏气 If the abdomen contracts compared to holding your breath, proceed to step (2-5); otherwise, proceed to step (2-6). (2-4) Determine that the training state is normal abdominal inhalation, and display inhalation-related information on the terminal APP; as the preferred option, compare with c 腹部 With C 腹部-吸气 When c 腹部 >C 腹部-吸气 This indicates that compared to the set abdominal inhalation value, the abdominal expansion amplitude has increased, indicating an improved abdominal inhalation effect. Conversely, this indicates that compared to the set abdominal inhalation value, the abdominal expansion amplitude has decreased or remained unchanged, indicating that the abdominal inhalation effect has not been improved. As a further optimization, compared to c...腹部 With C 腹部-吸气 And compare with c 胸部 With C 胸部-吸气 When c 腹部 >C 腹部-吸气 And c 胸部 <C 胸部-吸气 This indicates that compared to the set abdominal inhalation, the abdominal bulge was significantly larger this time, indicating that the effect of this abdominal inhalation was significantly improved.

[0068] (2-5) Determine that the training state is normal abdominal exhalation, and display inhalation-related information on the terminal APP; as a preferred option, compare with c 腹部 With C 腹部-呼气 When c is obtained 腹部 <C 腹部-呼气 This indicates that compared to the set abdominal exhalation value, the abdominal contraction degree increased, indicating an improved abdominal exhalation effect. Conversely, this indicates that compared to the set abdominal exhalation value, the abdominal contraction degree decreased or remained unchanged, indicating that the abdominal exhalation effect was not improved. As a further optimization, compared to c... 腹部 With C 腹部-呼气 And compare with c 胸部 With C 胸部-呼气 When c 腹部 <C 腹部-呼气 And c 胸部 >C 胸部-呼气 This indicates that compared to the set abdominal exhalation, the amplitude of abdominal contraction was significantly increased this time, and it can be judged that the effect of this abdominal exhalation was significantly improved.

[0069] (2-6) If the training status is incorrect, remind the patient in the terminal APP to keep the chest unchanged when breathing.

[0070] In order to improve the efficiency of setting reference values, in this embodiment, it is preferable to teach the user the correct abdominal breathing method before step (1), and the user performs some abdominal breathing training before proceeding to step (1).

[0071] The embodiments described above provide a detailed explanation of the technical solution of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, additions, or similar substitutions made within the scope of the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method of assisting diaphragmatic breathing with a training belt with sensors, characterized by: Set up two training belts, with sensors installed on each training belt; Users wear these two training straps while performing diaphragmatic breathing. One training strap has a sensor placed on the user's abdomen to monitor the rise and fall of the abdomen during diaphragmatic breathing; the other training strap has a sensor placed on the user's chest to monitor the rise and fall of the chest during diaphragmatic breathing. The method includes the following steps: (1) Set reference value Y 腹部-屏气 Y 胸部-屏气 Y 腹部-吸气 Y 胸部-吸气 Y 腹部-呼气 Y 胸部-呼气 This includes the following steps (1-0) to (1-7): (1-0) The user wears the training strap and restarts both sensors; The user performs breath holding in a certain posture, records the output value of the sensor arranged on the user's abdomen, denoted as Y 腹部-屏气 , and records the output value of the sensor arranged on the user's chest, denoted as Y 胸部-屏气 . The user maintains the aforementioned posture and performs one abdominal breath, i.e., abdominal inhalation and abdominal exhalation. The output value of the sensor placed on the user's abdomen during abdominal inhalation is recorded and denoted as Y. 腹部-吸气 And record the output value of the sensor set on the user's chest, denoted as Y. 胸部-吸气 Record the output value of the sensor placed on the user's abdomen during diaphragmatic exhalation, denoted as Y. 腹部-呼气 And record the output value of the sensor set on the user's chest, denoted as Y. 胸部-呼气 ; (1-1) According to Y 腹部-屏气 With Y 腹部-吸气 If the abdomen is found to bulge during abdominal inhalation compared with breath holding, step (1-2) is performed, otherwise step (1-0) is performed. (1-2) According to Y 腹部-屏气 With Y 腹部-呼气 If it is determined that the abdomen contracts during abdominal exhalation compared to breath holding, step (1-3) is performed, otherwise step (1-0) is performed. (1-3) According to Y 腹部-吸气 With Y 胸部-吸气 If the bulge of the abdomen is larger than that of the chest, step (1-4) is performed, otherwise step (1-0) is performed. (1-4) According to Y 腹部-呼气 With Y 胸部-呼气 If the amplitude of the contraction of the abdomen is larger than that of the chest, step (2) is performed, otherwise step (1-0) is performed. (2) The user performs abdominal breathing training, including the following steps (2-0) to (2-6): (2-0) The user performs diaphragmatic breathing, and the output value of the sensor disposed on the user's abdomen is recorded as y 腹部 , and the output value of the sensor disposed on the user's chest is recorded as y 胸部 ; (2-1) According to y 胸部 With Y 胸部-吸气 If the obtained y 胸部-吸气 is smaller than y, step (2-2) is executed, otherwise step (2-6) is executed; (2-2) According to y 腹部 With Y 腹部-屏气 If the abdomen is found to bulge, step (2-4) is performed, otherwise step (2-3) is performed. (2-3) According to y 腹部 With Y 腹部-屏气 If the abdominal contraction is obtained compared with breath-holding, step (2-5) is performed, otherwise step (2-6) is performed. (2-4) Determine that the training state at this time is normal abdominal inhalation; (2-5) Determine that the training state at this time is normal abdominal exhalation; (2-6) Determine that the training state is incorrect at this time.

2. The method of claim 1, wherein: In the step (2-4), according to y 腹部 With Y 腹部-吸气 If the abdominal bulge amplitude increases compared with Y 腹部-吸气 , it is judged that the effect of this time abdominal inspiration is improved; otherwise, it is judged that the effect of this time abdominal inspiration is reduced.

3. The method of claim 2, wherein: In steps (2-4), according to y 腹部 With Y 腹部-吸气 Determine if the result is the same as Y. 腹部-吸气 In comparison, the degree of abdominal distension is greater, and, according to y 胸部 With Y 胸部-吸气 Determine if the result is the same as Y. 胸部-吸气 In comparison, a smaller chest bulge indicates a significantly improved effect of abdominal inhalation; conversely, a larger bulge indicates a reduced effect of abdominal inhalation.

4. The method of claim 1 wherein: In steps (2-5), according to y 腹部 With Y 腹部-呼气 Determine if the result is the same as Y. 腹部-呼气 In comparison, a greater abdominal contraction indicates a more effective abdominal exhalation; conversely, a smaller contraction indicates a less effective abdominal exhalation.

5. The method of claim 4 wherein: In steps (2-5), according to y 腹部 With Y 腹部-呼气 Determine if the result is the same as Y. 腹部-呼气 In comparison, the amplitude of abdominal contraction increases, and, according to y 胸部 With Y 胸部-呼气 Determine if the result is the same as Y. 胸部-呼气 Compared to the previous method, the chest contraction amplitude decreased, indicating a significant improvement in the effectiveness of this abdominal exhalation. Conversely, it indicates that the effect of this abdominal exhalation is reduced.

6. The method of claim 1 wherein: Step (1) further includes the following steps (1-5) and (1-6): (1-5) According to Y 胸部-屏气 With Y 胸部-吸气 If, compared to holding one's breath, the chest expands or remains unchanged during abdominal inhalation, proceed to step (1-6); otherwise, proceed to step (1-0). (1-6) According to Y 胸部-屏气 With Y 胸部-呼气 If the chest contracts or remains unchanged during abdominal exhalation compared to breath-holding, proceed to step (2); otherwise, proceed to step (1-0).

7. The method of claim 1 wherein: If it is found through the training that the user has basically mastered the correct breathing method, the output value Y of the sensor provided on the user's chest can not be recorded when the user holds his breath in the step (1-0) 胸部-屏气 .

8. The method of claim 1 wherein: The sensor is a displacement sensor, a capacitance sensor, or a resistance sensor.

9. The method of claim 1 wherein: When the sensor is a capacitive sensor, C is used instead of Y to refer to the capacitance value; In step (1-1), compare C 腹部-屏气 With C 腹部-吸气 When C 腹部-屏气 <C 腹部-吸气 If the abdomen bulges, it indicates that the abdomen has shrunk; otherwise, it indicates that the abdomen has contracted or remains unchanged. In steps (1-2), compare C 腹部-屏气 With C 腹部-呼气 When C 腹部-屏气 >C 腹部-呼气 If the abdomen contracts, it indicates that the abdomen is contracting; otherwise, it indicates that the abdomen is bulging or the abdomen does not change. In steps (1-3), compare C 腹部-吸气 With C 胸部-吸气 When C 腹部-吸气 >C 胸部-吸气 If the bulge is large, it means that the abdominal bulge is larger than the chest; conversely, if the bulge is small or equal to the chest, it means that the abdominal bulge is smaller than the chest. In steps (1-4), compare C 腹部-呼气 With C 胸部-呼气 When C 腹部-呼气 <C 胸部-呼气 If the contraction amplitude is greater than that of the chest, it indicates that the contraction amplitude of the abdomen is smaller or equal to that of the chest. In step (2-1), compare c 胸部 With C 胸部-吸气 When c 胸部 <C 胸部-吸气 This indicates that it is related to C. 胸部-吸气 Compared to a smaller breast augmentation, the opposite indicates a C-cup. 胸部-吸气 Compared to a larger or equal increase in breast size; In steps (2-2) and (2-3), compare c 腹部 With C 腹部-屏气 When c 腹部 >C 腹部-屏气 This indicates that the abdomen bulges compared to holding one's breath. When c 腹部 <C 腹部-屏气 This indicates that the abdomen contracts compared to holding one's breath; In steps (2-4), compare c 腹部 With C 腹部-吸气 When c 腹部 >C 腹部-吸气 If the abdominal expansion is greater than the set abdominal inhalation level, it indicates that the abdominal inhalation effect has improved. Conversely, if the abdominal expansion is less or unchanged compared to the set abdominal inhalation level, it indicates that the abdominal inhalation effect has not improved. In steps (2-5), compare c 腹部 With C 腹部-呼气 When c is obtained 腹部 <C 腹部-呼气 If the abdominal contraction amplitude is greater than the set abdominal exhalation amplitude, it indicates that the abdominal exhalation effect has improved. Conversely, if the abdominal contraction amplitude is less or unchanged compared to the set abdominal exhalation amplitude, it indicates that the abdominal exhalation effect has not improved.

10. The method of claim 1 wherein: When the sensor is a displacement sensor, L is used instead of Y to refer to the displacement value; In step (1-1), compare L 腹部-屏气 With L 腹部-吸气 When L 腹部-屏气 <L 腹部-吸气 If the abdomen bulges, it indicates that the abdomen has shrunk; otherwise, it indicates that the abdomen has contracted or remains unchanged. In steps (1-2), compare L 腹部-屏气 With L 腹部-呼气 When L 腹部-屏气 >L 腹部-呼气 If the abdomen contracts, it indicates that the abdomen is contracting; otherwise, it indicates that the abdomen is bulging or the abdomen does not change. In steps (1-3), compare L 腹部-吸气 With L 胸部-吸气 When L 腹部-吸气 >L 胸部-吸气 If the abdomen protrudes more than the chest, it indicates that the abdominal protrusion is larger than the chest; conversely, if the abdomen protrudes less than the chest, it indicates that the abdominal protrusion is smaller or equal to the chest. In steps (1-4), compare L 腹部-呼气 With L 胸部-呼气 When L 腹部-呼气 <L 胸部-呼气 If the contraction amplitude is greater than that of the chest, it indicates that the contraction amplitude of the abdomen is smaller or equal to that of the chest. In step (2-1), compare l 胸部 With L 胸部-吸气 When l 胸部 <L 胸部-吸气 This indicates that it is related to L. 胸部-吸气 Compared to a smaller breast augmentation, the opposite indicates a smaller breast enlargement, or vice versa. 胸部-吸气 Compared to a larger or equal increase in breast size; In steps (2-2) and (2-3), compare l 腹部 With L 腹部-屏气 When l 腹部 >L 腹部-屏气 This indicates that the abdomen bulges compared to holding one's breath. 腹部 <L 腹部-屏气 This indicates that the abdomen contracts compared to holding one's breath; In steps (2-4), compare l 腹部 With L 腹部-吸气 When l 腹部 >L 腹部-吸气 If the abdominal expansion is greater than the set abdominal inhalation level, it indicates that the abdominal inhalation effect has improved. Conversely, if the abdominal expansion is less or unchanged compared to the set abdominal inhalation level, it indicates that the abdominal inhalation effect has not improved. In steps (2-5), compare l 腹部 With L 腹部-呼气 When l 腹部 <L 腹部-呼气 If the abdominal contraction is greater than the set abdominal exhalation level, it indicates that the abdominal exhalation effect has improved. Conversely, if the abdominal contraction is less or unchanged compared to the set abdominal exhalation level, it indicates that the abdominal exhalation effect has not improved.

11. The method of claim 1 wherein: When the sensor is a resistance sensor, R is used instead of Y to refer to the resistance value; In step (1-1), compare R 腹部-屏气 With R 腹部-吸气 When R 腹部-屏气 <R 腹部-吸气 If the abdomen bulges, it indicates that the abdomen has shrunk; otherwise, it indicates that the abdomen has contracted or remains unchanged. In steps (1-2), compare R 腹部-屏气 With R 腹部-呼气 When R 腹部-屏气 >R 腹部-呼气 If the abdomen contracts, it indicates that the abdomen is contracting; otherwise, it indicates that the abdomen is bulging or the abdomen does not change. In steps (1-3), compare R 腹部-吸气 With R 胸部-吸气 When R 腹部-吸气 >R 胸部-吸气 If the bulge is large, it means that the abdominal bulge is larger than the chest; conversely, if the bulge is small or equal to the chest, it means that the abdominal bulge is smaller than the chest. In steps (1-4), compare R 腹部-呼气 With R 胸部-呼气 When R 腹部-呼气 <R 胸部-呼气 If the contraction amplitude is greater than that of the chest, it indicates that the contraction amplitude of the abdomen is smaller or equal to that of the chest. In step (2-1), compare r 胸部 With R 胸部-吸气 When r 胸部 <R 胸部-吸气 This indicates that it is related to R. 胸部-吸气 Compared to a smaller breast augmentation, the opposite indicates a smaller breast augmentation. 胸部-吸气 Compared to a larger or equal increase in breast size; In steps (2-2) and (2-3), the comparison of r 腹部 With R 腹部-屏气 When r 腹部 >R 腹部-屏气 This indicates that the abdomen bulges compared to holding one's breath, when r 腹部 <R 腹部-屏气 This indicates that the abdomen contracts compared to holding one's breath; In steps (2-4), compare r 腹部 With R 腹部-吸气 When r 腹部 >R 腹部-吸气 If the abdominal expansion is greater than the set abdominal inhalation level, it indicates that the abdominal inhalation effect has improved. Conversely, if the abdominal expansion is less or unchanged compared to the set abdominal inhalation level, it indicates that the abdominal inhalation effect has not improved. In steps (2-5), compare r 腹部 With R 腹部-呼气 When r is obtained 腹部 <R 腹部-呼气 If the abdominal contraction is greater than the set abdominal exhalation level, it indicates that the abdominal exhalation effect has improved. Conversely, if the abdominal contraction is less or unchanged compared to the set abdominal exhalation level, it indicates that the abdominal exhalation effect has not improved.

12. The method of claim 1 wherein: The two training bands have the same structure, and the sensors within them have the same structure.

13. The method of any one of claims 1 to 12, wherein the step of applying the coating is performed after the step of applying the primer. In step (2-4), it is determined that the training state is normal abdominal inhalation, and inhalation-related information is displayed on the terminal APP.

14. The method according to any one of claims 1 to 12, characterized in that: in In step (2-5), it is determined that the training state is normal abdominal exhalation, and exhalation-related information is displayed on the terminal APP.

15. The method of any one of claims 1 to 12, wherein the step of applying the coating is performed in a vacuum chamber. In steps (2-6), if it is determined that the training status is incorrect, the terminal APP will remind the patient to keep their chest unchanged when breathing.

16. The method of any one of claims 1 to 12, wherein: The sensor is a flexible capacitive strain sensor with a stacked structure, comprising a first encapsulation layer, a first conductive layer, a dielectric layer, a second conductive layer, and a second encapsulation layer in sequence, and the first encapsulation layer, the first conductive layer, the dielectric layer, the second conductive layer, and the second encapsulation layer all have deformation capabilities. A first limiting portion is provided between the first encapsulation layer and the first conductive layer; A second limiting portion is provided between the second encapsulation layer and the second conductive layer; Of the dielectric layer, the first conductive layer, the first limiting portion, and the first encapsulation layer, the first limiting portion has the greatest tensile strength. Among the dielectric layer, the second conductive layer, the second limiting portion, and the second encapsulation layer, the second limiting portion has the greatest tensile strength.

17. The method of claim 16 wherein: Along the stretching direction, the flexible capacitive strain sensor has stretching portions at both ends, referred to as the first stretching portion and the second stretching portion; One end of the first encapsulation layer is directly connected to one end of the second encapsulation layer, which is directly connected to the first stretching portion; the other end of the first encapsulation layer is directly connected to the other end of the second encapsulation layer, which is directly connected to the second stretching portion. The first limiting portion, the first conductive layer, the dielectric layer, the second conductive layer and the two ends of the second limiting portion are not directly connected to the first stretching portion and the second stretching portion. When stretching is performed through the first stretching portion and the second stretching portion, the first encapsulation layer and the second encapsulation layer are directly stretched and deformed, which causes the first limiting portion, the first conductive layer, the dielectric layer, the second conductive layer and the second limiting portion to deform.

18. The method of claim 16 wherein: The tensile modulus of the first conductive layer is less than the tensile modulus of the first limiting portion, and the tensile modulus of the first limiting portion is less than the tensile modulus of the first encapsulation layer. The tensile modulus of the second conductive layer is less than the tensile modulus of the second limiting portion, and the tensile modulus of the second limiting portion is less than the tensile modulus of the second encapsulation layer.

19. The method of claim 18 wherein: The tensile modulus of the dielectric layer is less than that of the tensile modulus of the first conductive layer.

20. The method of claim 18, characterized in that: The tensile modulus of the dielectric layer is less than that of the tensile modulus of the second conductive layer.

21. The method of claim 17, characterized in that: The first limiting portion has an elongated structure, and its length direction is along the stretching direction; The second limiting portion has an elongated structure, and its length direction is along the stretching direction.

22. The method of claim 21, characterized in that: The cross-sectional diameter of the first limiting part is no greater than 10mm.

23. The method as described in claim 22, characterized in that: The cross-sectional diameter of the first limiting part is no greater than 2mm.

24. The method of claim 23, characterized in that: The cross-sectional diameter of the first limiting portion is no greater than 1 mm.

25. The method of claim 21, characterized in that: The cross-sectional diameter of the second limiting part is no greater than 10mm.

26. The method of claim 25, characterized in that: The cross-sectional diameter of the second limiting part is no greater than 2mm.

27. The method of claim 26, characterized in that: The cross-sectional diameter of the second limiting part is no greater than 1 mm.

28. The method of claim 16, characterized in that: The first limiting portion is provided with a pleated structure, and the pleated structure is stretched and unfolded as the stretching occurs; The second limiting portion is provided with a pleated structure, which is stretched and unfolded as the stretching occurs.

29. The method of claim 28, characterized in that: Along the stretching direction, the first limiting portion has a wave-like shape.

30. The method of claim 28, characterized in that: Along the stretching direction, the second limiting portion has a wavy shape.

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