Evaluation training method and system based on sitting and standing rotation
By collecting data on the patient's lumbar rotation angle and pressure, a multi-parameter assessment model was constructed. The training plan was dynamically adjusted and a perturbation mechanism was introduced, which solved the problems of subjectivity in existing rehabilitation training assessment methods and the inability to adjust the training plan. This enabled objective quantitative assessment of lumbar function and targeted training, thereby improving rehabilitation efficiency.
Patent Information
- Application Number
- CN202511193323.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2025-12-05
AI Technical Summary
Existing rehabilitation training assessment methods lack quantitative indicators for lumbar rotation ability, balance control ability, and symmetry of sitting and standing force exertion, resulting in highly subjective and insensitive assessment results, and the training plan cannot be dynamically adjusted, affecting rehabilitation efficiency.
By collecting data on the patient's lumbar rotation angle, pressure when sitting and standing, the left-right pressure symmetry index, balance coefficient, and rotational obstacle index are calculated to construct a multi-parameter assessment model. The training plan is then dynamically adjusted based on the assessment results, and a dynamic perturbation mechanism is introduced for targeted training.
This approach enables objective and quantitative assessment of lumbar function, allows for dynamic adjustment of training plans, enhances the relevance and effectiveness of rehabilitation training, shortens the rehabilitation cycle, and improves the quality of rehabilitation.
Smart Images
Figure CN121075550A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of rehabilitation training. More particularly, the present application relates to an evaluation training method and system based on sit-to-stand rotation. BACKGROUND
[0002] Lumbar dysfunction is a common functional disorder in clinical rehabilitation training, which is often caused by lumbar disease, injury or functional degradation during postoperative rehabilitation. Its main manifestations are limited rotation of the lumbar region, decreased trunk stability, and uneven force during sit-to-stand transfer. The existing rehabilitation training evaluation methods mostly rely on subjective questionnaires, single posture measurement or local muscle strength detection, and lack of quantitative indicators that can comprehensively reflect the lumbar rotation ability, balance control ability and symmetry of sitting force, resulting in problems such as strong subjectivity and insufficient sensitivity of the evaluation results.
[0003] In rehabilitation training, the conventional method often fixes the training plan, which cannot be dynamically adjusted according to the functional recovery of the patient, and is easy to cause the mismatch between the training intensity and the actual ability of the patient, thereby affecting the rehabilitation efficiency. In addition, the existing balance training equipment is mostly used for lower limb and overall stability training, and lacks the mechanism of targeted intervention combining the lumbar rotation characteristics and force symmetry, which is difficult to effectively improve the lumbar dysfunction. SUMMARY
[0004] The present application provides an evaluation training method and system based on sit-to-stand rotation, aiming to solve the problem in the related art that the existing balance training equipment is mostly used for lower limb and overall stability training, lacks the mechanism of targeted intervention combining the lumbar rotation characteristics and force symmetry, and is difficult to effectively improve the lumbar dysfunction.
[0005] In a first aspect, the present application provides an evaluation training method based on sit-to-stand rotation, comprising: collecting data of a patient during evaluation, wherein the data includes the rotation angle of the patient's lumbar region, the pressure data when the patient sits down, and the pressure data when the patient stands up; calculating the degree of lumbar dysfunction of the patient, and evaluating the training effect according to the degree of lumbar dysfunction, wherein the degree of lumbar dysfunction of the patient and the left-right pressure symmetry index of the patient, the balance coefficient of the patient and the rotation dysfunction index of the patient are all negatively correlated; the left-right pressure symmetry index of the patient reflects the balance of the weight when sitting down; the balance coefficient of the user and the difference between the left and right forces when the patient stands up on the dynamic balance board are negatively correlated; and the rotation dysfunction index of the patient reflects the symmetry of the rotation angle of the patient's lumbar region.
[0006] Further, the training effect is evaluated according to the degree of lumbar impairment, including: in response to the degree of lumbar impairment of the user after completing this training being lower than that after the last training, the original training plan can be continued; in response to the degree of lumbar impairment of the user after completing this training being higher than that after the last training, a new training plan is re-established.
[0007] Further, the degree of lumbar impairment of the patient is calculated, and the calculation formula is: ; wherein, represents the degree of lumbar impairment of the patient, represents the left-right pressure symmetry index of the patient, represents the rotation impairment index of the lumbar of the patient, represents the balance coefficient of the patient. 、 and respectively represent the weights corresponding to the left-right pressure symmetry index, the rotation impairment index of the lumbar, and the balance coefficient of the patient.
[0008] Further, the calculation formula of the rotation impairment index of the patient is: ; ; wherein, represents the rotation impairment index of the lumbar of the patient, represents the maximum rotation angle to the left of the patient, represents the maximum rotation angle to the right of the patient , and functions are respectively used to take the smaller value and the larger value.
[0009] Further, the calculation formula of the balance coefficient of the patient is: ; wherein, is the balance coefficient of the patient, is the left pressure value recorded at the moment of standing on the dynamic balance plate, is the right pressure value recorded at the moment of standing on the dynamic balance plate, is the maximum inclination angle preset by the dynamic balance plate Further, the calculation formula of the left-right pressure symmetry index of the patient is: ; wherein, represents the left-right pressure symmetry index of the patient, represents the total pressure value or pressure area of the left area of the seat, represents the total pressure value or pressure area of the right area of the seat, and functions are respectively used to take the smaller value and the larger value.
[0010] Further, the dynamic disturbance mechanism is constructed according to the balance coefficient of the user, and a disturbance angle is calculated to train the user, wherein the dynamic disturbance mechanism is used for compensatory training by applying a reverse and proportional disturbance on the dynamic balance plate.
[0011] Further, the disturbance angle is calculated according to the following formula: ; wherein, is the disturbance angle of the balance plate, is a left pressure value recorded at the moment when the patient stands on the dynamic balance plate, is a right pressure value recorded at the moment when the patient stands on the dynamic balance plate, is a preset maximum inclination angle of the dynamic balance plate, and the maximum inclination angle is 15°. The second aspect of the present application also provides an evaluation training system based on sit-to-stand rotation, comprising a processor and a memory, the memory stores a computer program, and the processor executes the computer program to realize the evaluation training method based on sit-to-stand rotation.
[0012] Advantages (1) By comprehensively collecting the rotation angle of the waist, the pressure data when sitting and standing, a multi-parameter evaluation model of the degree of waist disorder is constructed, covering three key indicators of left and right pressure symmetry index, balance coefficient and rotation disorder index, and the quantitative evaluation is realized by combining the weighted calculation formula. The model can accurately reflect the functional state of the waist, and each index is negatively correlated with the degree of waist disorder, which helps to find the functional degradation trend in time and ensure the objectivity and accuracy of the evaluation results.
[0013] (2) According to the change trend of the degree of waist disorder, the training plan is dynamically adjusted, and the dynamic disturbance mechanism based on the balance coefficient is introduced, and the compensatory training is realized by the proportional reverse disturbance of the balance plate, which helps to improve the left and right force difference and the waist rotation asymmetry problem, improve the pertinence and effectiveness of the rehabilitation training, shorten the rehabilitation period, and improve the rehabilitation quality. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a flowchart illustrating a process of calculating the degree of sit-to-stand disorder of a patient according to an embodiment of the present application. DETAILED DESCRIPTION
[0015] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0016] As Figure 1 shown, S101: Collect evaluation data of the patient.
[0017] Specifically, first, the patient is guided to sit on a seat integrated with a static pressure sensor matrix. The seat can be adjusted forward and backward and up and down to help the patient find a comfortable and biomechanically correct sitting position. The static pressure sensor matrix can monitor and collect the pressure distribution data on the contact surface between the patient's buttocks and the seat in real time, which is the evaluation data of the patient.
[0018] S102: Calculate the left-right pressure symmetry index of the patient.
[0019] Specifically, if the patient has a lumbar dysfunction, the affected side muscles may have reduced load bearing due to weakness or pain, resulting in significant asymmetry in pressure distribution. Therefore, the left-right pressure symmetry index of the patient can be calculated according to the pressure distribution, and the calculation formula is: In the formula, represents the left-right pressure symmetry index of the patient, represents the total pressure value or pressure area of the left side area of the seat, represents the total pressure value or pressure area of the right side area of the seat, and the functions respectively take the smaller and larger values of the two.
[0020] It can be understood that the value range of the left-right pressure symmetry index is [0, 1], and the closer the value is to 1, the more balanced the force on the left and right sides, and the better the symmetry. Based on the left-right pressure symmetry index, the degree of dysfunction of the patient's lumbar can be divided into multiple levels. As a preferred solution, it can be divided into three levels, and the degree of dysfunction of the three levels from low to high is low dysfunction level, medium dysfunction level and high dysfunction level, specifically: greater than the first threshold value is divided into low dysfunction level, wherein the low dysfunction level indicates that the patient's pressure distribution is basically symmetrical, and the lumbar function is good; greater than or equal to the second threshold value and less than the first threshold value is divided into the medium dysfunction level, which indicates a mild imbalance and potential lumbar function problems; and less than or equal to the second threshold value is divided into the high dysfunction level, which indicates that the patient's pressure distribution is significantly asymmetrical, and the affected side of the lumbar has a significant dysfunction. The empirical value of the first threshold value is 0.95, and the empirical value of the second threshold value is 0.7.
[0021] In the primary training phase, the pressure values on both sides of the patient's seat will be displayed in real time on the system interface. The patient can actively adjust the sitting position and observe the real-time feedback on the interface to try to make the pressure values on both sides equal, i.e., the left-right pressure symmetry index of the patient tends to 1. This process is an active biofeedback training that helps the patient establish correct proprioception and correct bad sitting habits.
[0022] S103: Calculate the balance coefficient when the patient stands, and determine the disturbance angle of the dynamic balance board according to the balance coefficient to train the patient.
[0023] Specifically, the patient places both feet on two areas on the dynamic balance board, and the left and right sides of the patient correspond to the left foot and the right foot, respectively. A pressure sensor matrix is placed below each area for collecting the pressure applied to the dynamic balance board by the patient standing, and then the patient performs the action of "sitting to standing". At the moment when the patient's body leaves the chair, the pressure sensor matrix records the instantaneous pressure values on the left and right sides at that moment. On this basis, a dynamic disturbance mechanism needs to be constructed, the core of which is that the asymmetry of the patient's force at the moment of standing up can be compensated by applying a reverse and proportional disturbance on the dynamic balance board. That is, the left and right pressure difference of the dynamic balance board is taken as the balance coefficient, and the balance board is tilted by a disturbance angle in proportion, so as to intentionally increase the control difficulty of the affected side / strong side, thereby performing compensatory / symmetrical training.
[0024] According to the above, a calculation formula for calculating the disturbance angle is provided, and the formula is: . In the formula, is the disturbance angle of the balance board, is the left side pressure value recorded at the moment of standing up of the patient on the dynamic balance board, is the right side pressure value recorded at the moment of standing up of the patient on the dynamic balance board, is the maximum tilt angle of the dynamic balance board, and the maximum tilt angle is 15°. In the formula, the left and right pressure difference can be taken as the balance coefficient (P). When the balance coefficient is greater than 0, it means that the proportion of left leg force is greater than that of right leg, so it is considered that the patient's force is biased to the left side, thereby making the balance board tilt to the right to create a reverse disturbance. When the balance coefficient is less than 0, it means that the proportion of right leg force is greater than that of left leg, so it is considered that the patient's force is biased to the right side, thereby making the balance board tilt to the left to create a reverse disturbance. As can be seen from the above formula, when and are not equal, is not zero, and the dynamic balance board will tilt. For example, if the patient mainly uses the left leg to exert force ( ), then is a positive value, and the system can control the balance board to tilt to the right, thereby increasing the control difficulty of the right lower limb and core muscle group of the patient, forcing them to mobilize the right muscle group more to maintain balance. Conversely, if is closer to , then the value of is closer to 0, and the current dynamic balance board does not produce disturbance, which also indicates that the patient's force on the dynamic balance board is symmetrical.
[0025] S104: Calculate the rotation disorder index of the patient's waist.
[0026] Specifically, the patient stands on the dynamic balance board in the locked state to ensure the stability of the lower limbs. Then, the patient tries to turn the waist left and right, and a rotating belt is bound on the waist of the patient, and an angle sensor is arranged on the rotating belt. Through the angle sensor on the rotating belt, the maximum rotation angle of the patient to the left and the maximum rotation angle to the right are accurately measured and recorded. Based on the symmetry of the bilateral rotation range of motion of the patient, the rotation disorder index of the waist of the patient is calculated, and the closer the maximum rotation angle of the patient to the left and the maximum rotation angle to the right , the smaller the rotation disorder index of the waist of the patient, and vice versa, the greater the rotation disorder index of the waist of the patient.
[0027] Accordingly, a calculation formula for calculating the rotation disorder index of the waist of the patient is provided, and the formula is: . In the formula, represents the rotation disorder index of the waist of the patient, represents the maximum rotation angle of the patient to the left, represents the maximum rotation angle of the patient to the right , and functions are used to take the smaller value and the larger value respectively. Wherein, the greater the S value, the closer the left and right rotation angles of the patient, the more symmetrical the waist rotation function, and the milder the rotation disorder. The smaller the S value, the greater the difference between the left and right rotations of the patient, the more asymmetrical the waist rotation function, and the more serious the rotation disorder.
[0028] It should be noted that after the rotation disorder index of the waist of the patient is calculated, a training plan can be developed according to the rotation disorder index of the waist of the patient, for example: if the evaluation result is = 30°, = 25°, it indicates that the right rotation range of motion is limited, and the training will be carried out for the right rotation. Specifically, the rotating belt is driven by the motor to passively increase the right rotation angle of the patient in a gradual manner from 25°. As a preferred solution, the system can be set to increase the rotation angle by 1° every 30 seconds, return to the original position after reaching the target, and then repeat the process. This training mode aims to gradually stretch the tense muscle group and activate the corresponding muscle until the rotation angles of the patient on both sides tend to be the same. If the bilateral range of motion of the patient is lower than the normal reference value, the system will use the normal person's standard rotation angle as the training target for bilateral training until the rotation disorder index of the waist of the patient is greater than the threshold value, and the empirical value of the threshold value is 0.95.
[0029] S102: Calculate the sitting disorder degree of the patient.
[0030] In the evaluation stage, the system divides the sensing area of the pressure sensor matrix into two areas, left and right, corresponding to the force on the left and right hips of the patient. By calculating the pressure integral value (or pressure area) of the left and right areas, the degree of dysfunction of the patient's left and right waist is quantified. To achieve quantitative evaluation, the sitting dysfunction coefficient is introduced in this embodiment, and the construction of the sitting dysfunction coefficient is based on the fact that under normal sitting posture, the left and right sides of the human body should bear equal weight. If there is a dysfunction of the waist, the muscles on the affected side may be weakened or painful, resulting in reduced weight bearing, which manifests as a significant asymmetry in pressure distribution. To obtain a comprehensive evaluation of the patient's waist function, the results of the aforementioned sub-evaluations are weighted and fused to calculate the degree of dysfunction of the patient's waist.
[0031] Specifically, the degree of dysfunction of the patient's waist is calculated, and the calculation formula is: In the formula, represents the degree of dysfunction of the patient's waist, represents the left and right pressure symmetry index of the patient, represents the rotation dysfunction index of the patient's waist, represents the balance coefficient of the patient. 、 and represent the weights corresponding to the left and right pressure symmetry index of the patient, the rotation dysfunction index of the waist, and the balance coefficient of the patient, respectively. In this embodiment, 、 and are all 1 / 3.
[0032] Finally, according to the size of the degree of dysfunction of the patient's waist, the rehabilitation effect is objectively evaluated. For example, after the first week of training, the patient's degree of dysfunction of the waist is 0.8, after the second week of training, the patient's degree of dysfunction of the waist is 0.7, and after the third week of training, the patient's degree of dysfunction of the waist is 0.5. This indicates that after training, the patient's degree of dysfunction of the waist gradually decreases, indicating that the patient's waist function has gradually improved during the continuous rehabilitation training, the left and right force, rotational symmetry, and balance control ability have all improved, and the rehabilitation program has achieved positive results. Conversely, the training plan is redeveloped, and the user achieves positive results after using the training plan.
[0033] In summary, the force data of the left and right hips of the patient is collected by the seat pressure sensor matrix, the left and right pressure symmetry indexes are calculated to reflect the balance degree of the load in the sitting position; secondly, the dynamic balance plate is used to record the left and right force difference at the moment of standing up, the balance coefficient is calculated, and the reverse disturbance is applied according to the balance coefficient, so that the targeted balance training is realized; thirdly, the left and right maximum rotation angles of the patient are measured by the waist angle sensor, the rotation obstacle index is calculated, and the symmetry of the waist rotation activity is evaluated. Finally, the above contents are weighted and fused according to equal weights to obtain the waist obstacle degree, form a comprehensive quantitative index of the waist function, and develop a personalized training program according to the evaluation result, realize the comprehensiveness of the evaluation, and also improve the pertinence and effectiveness of the training.
[0034] Figure 1 is a structural block diagram schematically showing the assessment and training method and system based on sitting and standing rotation according to the embodiment.
[0035] The application further provides an assessment and training system based on sitting and standing rotation. The system comprises a processor and a memory, and the memory stores computer program instructions. When the computer program instructions are executed by the processor, the assessment and training method based on sitting and standing rotation according to the first aspect of the application is realized.
[0036] The system further comprises a communication bus and a communication interface and other components familiar to those skilled in the art, and the settings and functions thereof are known in the art, so they will not be described here.
[0037] In this invention, the aforementioned memory can be any tangible medium containing or storing a program that can be used or combined with an instruction execution system, apparatus, or device. For example, a computer-readable storage medium can be any suitable magnetic or magneto-optical storage medium, such as Resistive Random Access Memory (RRAM), Dynamic Random Access Memory (DRAM), Static Random Access Memory (SRAM), Enhanced Dynamic Random Access Memory (EDRAM), High-Bandwidth Memory (HBM), Hybrid Memory Cube (HMC), etc., or any other medium that can be used to store desired information and can be accessed by an application, module, or both. Any such computer storage medium can be part of a device or accessible to or connected to a device. Any application or module described in this invention can be implemented using computer-readable / executable instructions stored or otherwise maintained on such a computer-readable medium.
[0038] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.
Claims
1. A sit-to-stand rotation-based assessment training method, characterized by, The method comprises: collecting data of the patient at the time of evaluation, wherein the data comprises a rotation angle of the waist of the patient, pressure data when the patient is sitting and pressure data when the patient is standing; calculating a degree of impairment of the waist of the patient, and evaluating the training effect according to the degree of impairment of the waist, wherein the degree of impairment of the waist of the patient is negatively correlated with a left-right pressure symmetry index of the patient, a balance coefficient of the patient and a rotation impairment index of the patient; the left-right pressure symmetry index of the patient reflects a balance degree of weight bearing when sitting; the balance coefficient of the user is negatively correlated with a difference in left-right force when the patient stands up on the dynamic balance board; the rotation impairment index of the patient reflects a symmetry of the rotation angle of the waist of the patient.
2. The sit-to-stand rotation-based assessment training method according to claim 1, wherein, The evaluation of the training effect according to the degree of impairment of the waist comprises: in response to the degree of impairment of the waist of the user after completing the current training being lower than the degree of impairment of the waist after the last training, the user can continue to train according to the original training plan; in response to the degree of impairment of the waist of the user after completing the current training being higher than the degree of impairment of the waist after the last training, a new training plan is formulated.
3. The sit-to-stand rotation-based assessment training method according to claim 1, wherein, The degree of impairment of the waist of the patient is calculated according to the following formula: ； In the formula, represents the degree of lumbar disorder of the patient, represents the left-right pressure symmetry index of the patient, represents the rotation disorder index of the lumbar of the patient, represents the balance coefficient of the patient; , and respectively represent the weight corresponding to the left-right pressure symmetry index of the patient, the rotation disorder index of the lumbar, and the balance coefficient of the patient.
4. The sit-to-stand rotation-based assessment training method according to claim 1, wherein, The rotation impairment index of the patient is calculated according to the following formula: ； wherein represents the index of rotation disorder of the patient's waist, represents the maximum rotation angle of the patient to the left, represents the maximum rotation angle of the patient to the right , and the functions respectively take the smaller and larger values of the two.
5. The sit-to-stand rotation-based assessment training method according to claim 1, wherein, The balance coefficient of the patient is calculated according to the following formula: ； wherein is the balance coefficient of the patient, is the left side pressure value recorded at the moment the patient stands up on the dynamic balance plate, is the right side pressure value recorded at the moment the patient stands up on the dynamic balance plate.
6. The sit-to-stand rotation-based assessment training method according to claim 1, wherein, The left-right pressure symmetry index of the patient is calculated according to the following formula: ； wherein represents the left-right pressure symmetry index of the patient, represents the total pressure value or pressure area of the left side region of the seat, represents the total pressure value or pressure area of the right side region of the seat, and the functions respectively take the smaller and larger values of the two.
7. The sit-to-stand rotation-based assessment training method according to claim 1, wherein, The method further comprises: constructing a dynamic disturbance mechanism according to the balance coefficient of the user, and calculating a disturbance angle to train the user, wherein the dynamic disturbance mechanism compensates for the training by applying a reverse and proportional disturbance on the dynamic balance board.
8. A sit-to-stand rotation-based assessment training method according to claim 7, characterized in that, The disturbance angle is calculated according to the following formula: ； wherein is the angle of perturbation of the balance board, is the left side pressure value recorded at the instant the patient stands up on the dynamic balance board, is the right side pressure value recorded at the instant the patient stands up on the dynamic balance board, is the maximum angle of inclination preset for the dynamic balance board.
9. A sit-to-stand rotation-based assessment training method according to claim 8, wherein, The maximum inclination angle is 15°.
10. A sit-to-stand rotation-based assessment training system comprising a processor and a memory, wherein, The memory stores a computer program, and the processor executes the computer program to implement the evaluation and training method based on sitting and standing rotation according to any one of claims 1-9.