Rehabilitation system and rehabilitation method with rehabilitation monitoring function

Abstract

The present invention discloses a rehabilitation system and rehabilitation method with rehabilitation monitoring function. The rehabilitation system includes an exercise bike, an electrocardiogram sensor, an electromyography sensor, a recording module, and an evaluating device. The exercise bike includes an exercise bike body, a resistance component, and two pedals. When a user performs rehabilitation movements through the two pedals, the resistance component is operated to generate a resistance to the two pedals. When the user performs rehabilitation movements during a rehabilitation exercise, the electrocardiogram sensor and the electromyography sensor monitor the user and generate an ECG signals and an EMG signals respectively. When a resistance reduction condition is met, the evaluating device is configured to enable the resistance component to reduce the resistance generated by the two pedals. The resistance reduction condition is that a number of the ECG signals greater than an ECG threshold is greater than a first threshold; or a number of the EMG signals less than an EMG threshold is greater than a second threshold.

Description

Technical Field

[0001] This invention relates to a rehabilitation system and a rehabilitation method, and more particularly to a rehabilitation system and a rehabilitation method with rehabilitation monitoring function. Prior Technology

[0002] Existing rehabilitation systems typically measure a user's physiological state only after the user has begun rehabilitation exercises. Because these systems do not measure the user's physiological state during rehabilitation exercises, medical personnel cannot know the user's physiological state during these exercises and therefore cannot definitively determine whether the current level of rehabilitation exercise is appropriate for the user's physical capacity.

[0003] Therefore, the inventor believed that the above-mentioned defects could be improved. So he devoted himself to research and applied scientific principles, and finally proposed an invention that is reasonably designed and effectively improves the above-mentioned defects. Summary of the Invention

[0004] The present invention provides a rehabilitation system and rehabilitation method with rehabilitation monitoring function, which can effectively improve the defects that may occur in existing rehabilitation systems.

[0005] One embodiment of the present invention discloses a rehabilitation system with rehabilitation monitoring function, comprising: an exercise bike, including an exercise bike body, a resistance member disposed on the exercise bike body, and two pedals connected to the resistance member; wherein, when a user performs a rehabilitation exercise by using the two pedals, the resistance member generates resistance on the two pedals; an electrocardiogram (ECG) sensor, which can be used to monitor the user's cardiac state during the rehabilitation exercise and generate an ECG signal; and an electromyogram (EMG) sensor, which can monitor the user's muscle state during the rehabilitation exercise and generate an EMG signal. A recording module connected to the electrocardiogram (ECG) sensor and the electromyogram (EMG) sensor, the recording module recording the ECG and EMG signals generated each time the user is monitored during the rehabilitation exercise; and an evaluation device connected to the recording module, the evaluation device having an ECG threshold and an EMG threshold, and the evaluation device reducing the resistance generated by the resistance element on the two pedals when a resistance reduction condition is met, the resistance reduction condition being: the number of ECG signals greater than the ECG threshold is greater than a first threshold; or the number of EMG signals less than the EMG threshold is greater than a second threshold.

[0006] One embodiment of the present invention discloses a rehabilitation method with rehabilitation monitoring function, which is applied to a rehabilitation system. The rehabilitation method includes the following steps: providing an exercise bike, the exercise bike including an exercise bike body, a resistance member disposed on the exercise bike body, and two pedals connected to the resistance member; wherein, when a user performs a rehabilitation exercise through the two pedals, the resistance member generates resistance on the two pedals; monitoring the user's cardiac state during the rehabilitation exercise to generate an electrocardiogram signal; and monitoring the user's cardiac state during the rehabilitation exercise. The user generates an electromyographic (EMG) signal based on the muscle state during the rehabilitation exercise; records the electrocardiogram (ECG) signal and the EMG signal generated by the user during each rehabilitation exercise; and reduces the resistance generated by the resistance element on the two pedals when an assessment device meets a resistance reduction condition; wherein the assessment device has an ECG threshold and an EMG threshold, and the resistance reduction condition is: the number of ECG signals greater than the ECG threshold is greater than a first threshold; or the number of EMG signals less than the EMG threshold is greater than a second threshold.

[0007] In summary, the rehabilitation system and method with rehabilitation monitoring function disclosed in the embodiments of the present invention, through the design of "an electrocardiogram sensor, which can be used to monitor the heart state of the user performing the rehabilitation action during a rehabilitation exercise and generate an electrocardiogram signal" and "an electromyogram sensor, which can be used to monitor the muscle state of the user performing the rehabilitation action during the rehabilitation exercise and generate an electromyogram signal", the rehabilitation system can ensure that the user can perform rehabilitation exercises in a safe state.

[0008] To further understand the features and technical content of this invention, please refer to the following detailed description and accompanying drawings. However, these descriptions and drawings are only for illustrating this invention and are not intended to limit the scope of protection of this invention in any way. Simple Explanation of the Diagram

[0009] Figure 1 is a block diagram of a rehabilitation system with rehabilitation monitoring function according to an embodiment of the present invention.

[0010] Figure 2 is a schematic diagram of the structure of the exercise bike according to an embodiment of the present invention.

[0011] Figure 3 is a schematic diagram of a user performing rehabilitation exercises on an exercise bike according to an embodiment of the present invention.

[0012] Figure 4 is a flowchart illustrating the steps of a rehabilitation method with rehabilitation monitoring function according to an embodiment of the present invention. Implementation

[0013] The following specific embodiments illustrate the implementation of the "rehabilitation system and rehabilitation method with rehabilitation monitoring function" disclosed in this invention. Those skilled in the art can understand the advantages and effects of this invention from the content disclosed in this specification. This invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this invention. Furthermore, the accompanying drawings of this invention are for simple illustrative purposes only and are not depictions of actual dimensions; this is stated beforehand. The following embodiments will further describe the relevant technical content of this invention in detail, but the disclosed content is not intended to limit the scope of protection of this invention.

[0014] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the associated listed items.

[0015] Please refer to Figures 1 to 4, which illustrate embodiments of the present invention. This invention provides a rehabilitation system 100 with rehabilitation monitoring functionality, primarily intended for a user suffering from neurasthenia (e.g., a Parkinson's disease patient among those with neurasthenia). The rehabilitation system 100 can monitor the user's physical condition during rehabilitation exercises to ensure the user performs rehabilitation exercises safely.

[0016] It should be noted that, for ease of understanding of this embodiment, the diagrams depict partial blocks of the rehabilitation system 100 to clearly show the blocks and their connections. However, this invention is not limited to the diagrams. The following will describe each block of the rehabilitation system 100 and its connections.

[0017] As shown in Figures 1 to 3, the rehabilitation system 100 includes an exercise bike 1, an electrocardiogram (ECG) sensor 2, an electromyogram (EMG) sensor 3, a recording module 4, and an assessment device 5. In this embodiment, the exercise bike 1 is an upright exercise bike (as shown in Figure 2), but the invention is not limited thereto. For example, in other embodiments not shown in the figures, the exercise bike 1 may also be a recumbent exercise bike, a folding exercise bike, or a smart exercise bike, etc.

[0018] The exercise bike 1 includes an exercise bike body 11, a resistance element 12 disposed on the exercise bike body 11, and two pedals 13 connected to the resistance element 12. Specifically, the resistance element 12 is disposed inside the exercise bike body 11, and the resistance element 12 is connected to the two pedals 13 respectively via two connecting rods 14. When the user performs a rehabilitation exercise on the two pedals 13, the resistance element 12 generates resistance on the two pedals 13.

[0019] In detail, because the user (e.g., a Parkinson's patient) has stiff limbs, the user rides the exercise bike 1 using two pedals 13 to rehabilitate their legs. That is, the rehabilitation action in this embodiment is the user riding the exercise bike 1 using two pedals 13. The rehabilitation exercise period is the time during which the user repeats the rehabilitation action, and the rehabilitation performed by the user during the rehabilitation exercise period is defined as one rehabilitation session.

[0020] As shown in Figures 1 to 3, the electrocardiogram (ECG) sensor 2 can be used to monitor the heart status of a user performing rehabilitation exercises and generate an ECG signal. Specifically, the ECG sensor 2 has multiple ECG sensing patches 21. The multiple ECG sensing patches 21 are adhered to the lower edge of the user's chest and limbs (not shown in the figures), but the invention is not limited thereto. For example, in other embodiments of the invention not shown, the multiple ECG sensing patches 21 can also be adhered to the lower edge of the user's chest, the upper edge of the chest, and the lower edge of the abdomen.

[0021] It should be noted that each time the ECG sensor 2 monitors the user's rehabilitation exercises, it generates one ECG signal. That is, if the user does rehabilitation 20 times a month, the ECG sensor 2 will generate 20 ECG signals.

[0022] It should be further noted that the rehabilitation system 100 includes a controller 15 disposed in the exercise bike body 11 and a warning device 16 electrically coupled to the controller 15. The controller 15 is disposed within the exercise bike body 11 and electrically coupled to the electrocardiogram (ECG) sensor 2. The controller 15 has an ECG threshold, and the controller 15 can receive ECG signals during rehabilitation exercise and compare the ECG signals with the ECG threshold to generate a control signal. Specifically, when the heart rate of the ECG signal is greater than the ECG threshold, the controller 15 sends a control signal to the warning device 16, causing the warning device 16 to issue a warning message.

[0023] For example, assuming the ECG threshold is 180, during rehabilitation exercises, if the ECG sensor 2 measures the user's heart rate to be 185, the controller 15 knows that the user's heart rate of 185 is greater than the ECG threshold of 180, and the controller 15 sends a control signal to the warning device 16, causing the warning device 16 to issue a warning message (e.g., Warning! The heart is overloaded). This notifies the user to stop rehabilitation immediately to avoid danger. However, the present invention is not limited to the warning method.

[0024] The electromyography (EMG) sensor 3 can be used to monitor the muscle state of a user during rehabilitation exercises and generate an EMG signal. Specifically, the EMG sensor 3 has multiple EMG sensing patches 31, which are attached to the user's legs to sense changes in leg muscles.

[0025] It should be noted that the controller 15 is electrically coupled to the electromyography (EMG) sensor 3. The controller 15 has an EMG threshold and can receive EMG signals during rehabilitation exercises, comparing the EMG signals with the EMG threshold to generate a control signal. Specifically, when the frequency of the EMG signal is less than the EMG threshold, the controller 15 sends a control signal to the warning device 16, causing the warning device to issue a warning message.

[0026] For example, assuming the electromyography (EMG) threshold is 30, during rehabilitation exercises, if the EMG sensor 3 measures a frequency of 25 for the EMG signal corresponding to the user's leg, the controller 15 will know that the frequency of the EMG signal corresponding to the user's leg is lower than the EMG threshold, indicating that the user's leg muscles are fatigued or lack strength. The controller 15 will send a control signal to the warning device 16, causing the warning device 16 to issue a warning message (e.g., Warning! Leg muscles are overloaded), to notify the user to stop rehabilitation immediately to avoid danger. However, the present invention is not limited to this.

[0027] As shown in Figure 1, the recording module 4 is connected to the electrocardiogram (ECG) sensor 2 and the electromyogram (EMG) sensor 3. The recording module 4 records the ECG and EMG signals generated during each user's rehabilitation exercise through the ECG sensor 2 and the EMG sensor 3.

[0028] In this embodiment, the recording module 4 includes a communication device 41, a recording device 42 connected to the communication device 41, and a cloud database 43 connected to the recording device 42. The communication device 41 is electrically coupled to the electrocardiogram (ECG) sensor 2 and the electromyography (EMG) sensor 3, and receives ECG and EMG signals and transmits them to the recording device 42 for recording. The recording device 42 then uploads the ECG and EMG signals to the cloud database 43 to store the ECG and EMG signals generated each time by the ECG sensor 2 and the EMG sensor 3.

[0029] It should be noted that the electrocardiogram (ECG) sensor 2 and the electromyography (EMG) sensor 3 transmit ECG and EMG signals to the recording device 42 via the communication device 41, but the present invention is not limited thereto. For example, in other embodiments of the present invention not illustrated, the ECG sensor 2 and the EMG sensor 3 may have built-in communication circuits to transmit ECG and EMG signals to the recording device 42, respectively.

[0030] As shown in Figures 1 to 3, the evaluation device 5 can connect to the cloud database 43 of the recording module 4 to read the electrocardiogram (ECG) and electromyography (EMG) signals stored in the cloud database 43. The evaluation device 5 has ECG thresholds and EMG thresholds. When a resistance reduction condition is met, the evaluation device 5 gradually reduces the resistance generated by the resistance element 12 on the two pedals 13. The resistance reduction condition is: the number of ECG signals greater than the ECG threshold is greater than a first threshold; or the number of EMG signals less than the EMG threshold is greater than a second threshold.

[0031] Specifically, the assessment device 5 compares each electrocardiogram (ECG) signal with an ECG threshold. When the ECG signal exceeds the threshold, it indicates that the intensity of the rehabilitation exercise is excessively stressful on the user's heart. For example, if the heart rate of the ECG signal is greater than the threshold, it means that the user's heart rate is too fast during rehabilitation exercise, which means that the intensity of the rehabilitation exercise is excessively stressful on the user's heart.

[0032] If only one of the multiple ECG signals exceeds the ECG threshold, it may be due to the user's poor physical condition that day (e.g., lack of sleep), rather than the currently set rehabilitation exercise intensity placing too much strain on the user's heart. Therefore, when the number of ECG signals exceeding the ECG threshold is greater than the first threshold value, the resistance element 12 reduces the resistance generated on the two pedals 13.

[0033] For example, the recording module 4 records 50 ECG signals from each user's rehabilitation session over three months. Assuming a first threshold of 10 signals, if 15 out of the 50 ECG signals exceed this threshold, the resistance reduction condition is met, meaning the currently set rehabilitation exercise intensity is placing too much strain on the user's heart. Therefore, the resistance element 12 reduces the resistance generated on the two pedals 13 to ensure the user can perform rehabilitation exercises safely.

[0034] Another condition in the resistance reduction criteria is that the evaluation device 5 compares each electromyographic (EMG) signal with the EMG threshold. When the EMG signal is lower than the EMG threshold, it indicates that there is too much concern about the intensity of the rehabilitation exercise on the user's leg muscles. For example, when the frequency of the EMG signal is lower than the EMG threshold, it means that the user's leg muscles are fatigued or lack strength during the rehabilitation exercise, which means that there is too much concern about the intensity of the rehabilitation exercise on the user's leg muscles.

[0035] It should be noted that if only one of the multiple electromyographic (EMG) signals is below the EMG threshold, it may be due to the user's poor physical condition that day (e.g., lack of sleep), rather than the currently set rehabilitation exercise intensity placing too much load on the user's leg muscles. Therefore, when the number of EMG signals below the EMG threshold exceeds a second threshold, the resistance element 12 reduces the resistance generated on the two pedals 13.

[0036] For example, the recording module 4 records 50 electromyographic (EMG) signals from each user's rehabilitation session over three months. Assuming a second threshold of 10, if 15 out of the 50 EMG signals are below the threshold, the resistance reduction condition is met, meaning the currently set rehabilitation exercise intensity is placing too much strain on the user's leg muscles. Therefore, the resistance element 12 reduces the resistance generated on the two pedals 13 to ensure the user can perform rehabilitation exercises safely.

[0037] Furthermore, when an increase in resistance condition is met, the evaluation device 5 gradually increases the resistance generated by the resistance member 12 on the two pedals 13. The increase in resistance condition is defined as follows: the number of ECG signals greater than the ECG threshold is less than a first threshold; and the number of ECG signals less than the ECG threshold is less than a second threshold.

[0038] It should be noted that when the assessment device 5 meets the resistance increase condition, it means that the ECG and EMG signals generated by the ECG sensor 2 and EMG sensor 3 are generally within a safe range during each rehabilitation session. In other words, the current intensity of the rehabilitation exercise is appropriate for the user's physical capacity. Therefore, the physician can use the information displayed by the assessment device 5 to decide whether to maintain the resistance generated by the resistance element 12 on the two pedals 13, allowing the user to become more accustomed to the current intensity of the rehabilitation exercise. Alternatively, the physician can decide to increase the resistance generated by the resistance element 12 on the two pedals 13, allowing the user to increase the strength of their leg muscles in a safe manner.

[0039] As shown in Figure 1, the rehabilitation system 100 further includes an infrared sensor 6. The infrared sensor 6 is disposed on the exercise bike body 11 and connected to the recording module 4. Each time the user performs rehabilitation movements during rehabilitation exercise, the infrared sensor 6 senses the number of times one of the two pedals 13 is repeatedly passed to generate lap count data for the recording module 4 to record. The evaluation device 5 has a preset lap count data. When an acceleration condition is met, the evaluation device 5 reduces the resistance generated by the resistance member 12 on the two pedals 13 and increases the preset lap count. The acceleration condition is: the number of ECG signals greater than the ECG threshold is less than a first threshold; the number of EMG signals less than the EMG threshold is greater than a second threshold; and the number of lap count data greater than the predicted lap count data is less than a third threshold.

[0040] It should be noted that when the assessment device 5 meets the acceleration condition, it means that the user's current rehabilitation exercise intensity is slightly insufficient, but the user's cardiac load is sufficient for the current rehabilitation exercise intensity, and the user can generally reach the preset number of laps each time. Therefore, the doctor can use the information displayed by the assessment device 5 to decide to reduce the resistance generated by the resistance element 12 on the two pedals 13 and increase the predicted number of laps data, allowing the user to improve the muscle endurance of the leg muscles in a safe state.

[0041] The above describes the components and their connections of the rehabilitation system 100 with rehabilitation monitoring function. Next, the rehabilitation method of the rehabilitation system 100 with rehabilitation monitoring function, namely, a rehabilitation method S100 with rehabilitation monitoring function, is described. The rehabilitation method S100 with rehabilitation monitoring function is an application of the aforementioned rehabilitation system 100 with rehabilitation monitoring function, but the present invention is not limited thereto. As shown in Figure 4, the rehabilitation method S100 with rehabilitation monitoring function includes steps S101 to S109, and any one of these steps can be omitted or replaced with a reasonable variation according to the designer's needs.

[0042] Step S101: Provide an exercise bike, which includes an exercise bike body, a resistance element disposed on the exercise bike body, and two pedals connected to the resistance element; wherein, when a user performs a rehabilitation exercise through the two pedals, the resistance element generates resistance on the two pedals.

[0043] Step S103: During a rehabilitation exercise, monitor the user's cardiac status while performing rehabilitation movements and generate an electrocardiogram signal.

[0044] Step S105: During rehabilitation exercises, monitor the muscle state of the user during the rehabilitation process to generate an electromyographic signal.

[0045] Step S107: Record the electrocardiogram (ECG) and electromyogram (EMG) signals generated during each user's rehabilitation exercise.

[0046] Step S109: When an evaluation device meets a resistance reduction condition, the resistance generated by the resistance element on the two pedals is reduced; wherein the evaluation device has an electrocardiogram threshold and an electromyography threshold, and the resistance reduction condition is: the number of electrocardiogram signals greater than the electrocardiogram threshold is greater than a first threshold; or the number of electromyography signals less than the electromyography threshold is greater than a second threshold.

[0047] [Technical Effects of the Embodiments of the Invention]

[0048] In summary, the rehabilitation system and method with rehabilitation monitoring function disclosed in the embodiments of the present invention, through the design of "an electrocardiogram sensor, which can be used to monitor the heart state of the user performing the rehabilitation action during a rehabilitation exercise and generate an electrocardiogram signal" and "an electromyogram sensor, which can be used to monitor the muscle state of the user performing the rehabilitation action during the rehabilitation exercise and generate an electromyogram signal", the rehabilitation system can ensure that the user can perform rehabilitation exercises in a safe state.

[0049] The content disclosed above is only a preferred and feasible embodiment of the present invention, and is not intended to limit the patent scope of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention specification and drawings are included within the patent scope of the present invention.

[0050] 100: Rehabilitation system with rehabilitation monitoring function 1: Exercise bike 11: The exercise bike itself 12: Resistance components 13: Pedal 14: Linkage 15: Controller 16: Warning device 2: Electrocardiogram (ECG) sensor 21: ECG sensing patch 3: Electromyography (EMG) sensor 31: Electromyography (EMG) sensing patch 4: Recording Module 41: Communication devices 42: Recording device 43: Cloud-based database 5: Evaluation device 6: Infrared sensor S100: Rehabilitation methods with rehabilitation monitoring functions S101~S109: Steps

Claims

1. A rehabilitation system with rehabilitation monitoring function, comprising: An exercise bike includes a bike body, a resistance element disposed on the bike body, and two pedals connected to the resistance element; wherein, when a user performs a rehabilitation exercise using the two pedals, the resistance element generates resistance on the two pedals; an electrocardiogram (ECG) sensor is used to monitor the user's cardiac state during the rehabilitation exercise and generate an ECG signal; an electromyogram (EMG) sensor is used to monitor the user's muscle state during the rehabilitation exercise and generate an EMG signal; a recording module is connected to the ECG sensor and the EMG sensor, the recording module records the ECG signal and the EMG signal generated each time the user is monitored during the rehabilitation exercise; and an evaluation device is connected to the recording module, the evaluation device having an ECG threshold and an EMG threshold, and the evaluation device reduces the resistance generated by the resistance element on the two pedals when a resistance reduction condition is met, the resistance reduction condition being: The number of ECG signals greater than the ECG threshold is greater than a first threshold; or the number of EMG signals less than the EMG threshold is greater than a second threshold; wherein, when a resistance increase condition is met, the evaluation device increases the resistance generated by the resistance member on the two pedals, the resistance increase condition being: the number of ECG signals greater than the ECG threshold is less than the first threshold; and the number of EMG signals less than the EMG threshold is less than the second threshold.

2. The rehabilitation system with rehabilitation monitoring function as described in claim 1, wherein, The rehabilitation system further includes an infrared sensor, which is disposed on the exercise bike body and connected to the recording module. Each time the user performs the rehabilitation exercise, the infrared sensor senses the number of times one of the two pedals is repeatedly traversed, generating lap count data for the recording module to record. The evaluation device has a preset lap count data, and when a speed-up condition is met, the evaluation device reduces the resistance generated by the resistance element on the two pedals and increases the preset lap count. The speed-up condition is: the number of ECG signals greater than the ECG threshold is less than the first threshold; the number of electromyographic signals less than the electromyographic threshold is greater than the second threshold; and the number of lap count data greater than the preset lap count data is less than a third threshold.

3. A rehabilitation system with rehabilitation monitoring function as described in claim 1, wherein, The electrocardiogram (ECG) sensor has multiple ECG sensing patches, which are adhered to the lower edge of the user's chest; the electromyography (EMG) sensor has multiple EMG sensing patches, which are adhered to the user's legs.

4. A rehabilitation system with rehabilitation monitoring function as described in claim 1, wherein, The rehabilitation system further includes a controller disposed within the exercise bike body and a warning device electrically coupled to the controller. The controller is electrically coupled to the electrocardiogram (ECG) sensor. The controller receives the ECG signal and compares the ECG signal with the ECG threshold to generate a control signal. When the heart rate of the ECG signal is greater than the ECG threshold, the controller transmits the control signal to the warning device to cause the warning device to issue a warning message.

5. A rehabilitation system with rehabilitation monitoring function as described in claim 1, wherein, The rehabilitation system further includes a controller disposed within the exercise bike body and a warning device electrically coupled to the controller. The controller is electrically coupled to the electromyography (EMG) sensor. The controller receives the EMG signal and compares the EMG signal with the EMG threshold to generate a control signal. When the frequency of the EMG signal is less than the EMG threshold, the controller transmits the control signal to the warning device to cause the warning device to issue a warning message.

6. A rehabilitation system with rehabilitation monitoring function as described in claim 1, wherein, The recording module includes a communication device, a recording device connected to the communication device, and a cloud database connected to the recording device. The communication device receives the electrocardiogram (ECG) signal and the electromyogram (EMG) signal and transmits the ECG signal and the EMG signal to the recording device to record the ECG signal and the EMG signal; wherein, the recording device uploads the ECG signal and the EMG signal to the cloud database.

7. A rehabilitation method with rehabilitation monitoring function, applied to a rehabilitation system, the rehabilitation method comprising the following steps: providing an exercise bike, the exercise bike comprising an exercise bike body, a resistance element disposed on the exercise bike body, and two pedals connected to the resistance element; wherein, When a user performs a rehabilitation exercise using the two pedals, the resistance element generates resistance on the two pedals; during a rehabilitation exercise, the user's cardiac status is monitored, generating an electrocardiogram (ECG) signal; during the rehabilitation exercise, the user's muscle status is monitored, generating an electromyogram (EMG) signal; the ECG and EMG signals generated by the user during each rehabilitation exercise are recorded; and when an assessment device meets a resistance reduction condition, the resistance generated by the resistance element on the two pedals is reduced; wherein the assessment device has an ECG threshold and an EMG threshold, and the resistance reduction condition is: the number of ECG signals greater than the ECG threshold is greater than a first threshold; or the number of EMG signals less than the EMG threshold is greater than a second threshold; wherein, when an resistance increase condition is met, the assessment device increases or maintains the resistance generated by the resistance element on the two pedals, the resistance increase condition being: The number of ECG signals greater than the ECG threshold is less than the first threshold; and the number of EMG signals less than the EMG threshold is less than the second threshold.

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