CN115177274A - Evaluation device for pelvic floor muscle key muscle group and cooperative muscle group coordination and easy fatigue - Google Patents
Evaluation device for pelvic floor muscle key muscle group and cooperative muscle group coordination and easy fatigue Download PDFInfo
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- CN115177274A CN115177274A CN202210927100.3A CN202210927100A CN115177274A CN 115177274 A CN115177274 A CN 115177274A CN 202210927100 A CN202210927100 A CN 202210927100A CN 115177274 A CN115177274 A CN 115177274A
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/389—Electromyography [EMG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow
- A61B5/224—Measuring muscular strength
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/389—Electromyography [EMG]
- A61B5/391—Electromyography [EMG] of genito-urinary organs
Abstract
The invention discloses an evaluation device for pelvic floor muscle key muscle group and cooperative muscle group coordination and easy fatigue, which is used for receiving surface electromyographic signals of pelvic floor muscles, abdominal muscles and gluteus maximus participating in activities, evaluating the pelvic abdomen and gluteal coordination by observing muscle activation time difference and bringing the muscle fatigue into an evaluation system by combining the activity characteristics of the pelvic floor muscles and the surrounding cooperative muscle groups, is more in line with the overall characteristics of human physiological activities, is particularly beneficial to evaluating a contraction mode compensated by the cooperative muscle groups under symptoms, overcomes the singleness of an evaluation object in the traditional method, and realizes accurate positioning of a target muscle group by detecting the parameter setting range of healthy people.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to an evaluation device for pelvic floor muscle key muscle group and cooperative muscle group coordination and easy fatigue.
Background
Pelvic floor dysfunctional diseases (PFD) are common chronic diseases of middle-aged and elderly women, and are mainly manifested as pelvic organ prolapse, lower urinary tract symptoms, anorectal dysfunction, sexual dysfunction and the like. Although PFD is not a lethal disease, it is of increasing concern due to its impact on quality of life. With the aging population, the prevalence rate of the elderly women is increased year by year, and how to prevent the occurrence and development of the chronic diseases becomes an important part of healthy China.
The human body as a coordinated whole, healthy pelvic floor muscles can form a strong muscle lifting plate to counteract pressure from the abdominopelvic cavity, and ligaments suspending pelvic organs are protected from excessive pressure, thereby keeping the pelvic floor organs in a normal position. Therefore, the coordination of the muscle contraction force and the abdominal and pelvic pressure becomes a new difficult point for prevention and treatment.
The pathogenesis of PFD is traditionally attributed to weak injuries of pelvic floor muscles and connective tissues, the accepted assessment technology for preventing and treating the disease is surface myoelectric assessment of muscle functions, and the therapeutic means such as pelvic floor muscle training and electromagnetic stimulation aim at recovering the contractility of the pelvic floor muscles to improve symptoms. In clinical applications, the currently used evaluation methods have the drawbacks: (1) For example, the pelvic floor muscle strength evaluation proposed by the published chinese patent application CN202010862428.2 is only directed at the pelvic floor muscle group, the evaluation method does not have integrity and coordination, the abdominal muscles and the gluteus maximus participate in the physiological processes of controlling urination and the like of the human body at the same time, and the maintenance of the normal pelvic floor function is the result of the coordinated operation of the three, so the traditional evaluation method is only limited to the independent link of pelvic floor muscle contraction, and the cooperativity with other non-pelvic floor muscle groups is ignored; (2) The chinese patent application CN202110782560.7 is still deficient in evaluating the fatigue characteristics of muscles, which only provides a qualitative detection of muscle fatigue, although the abdominal muscles are included in the detection range, but some patients compensate with the gluteus maximus. (3) The evaluation method shown in the Chinese patent application CN202110782560.7 judges the fatigue state of pelvic floor muscles by detecting the myoelectric values and calculating the degree of engagement of the myoelectric values with preset reference values, has limited guiding significance for people of different age groups, and has the advantages that as pelvic floor nerves dominate functional muscle groups, with the increase of ages, pelvic nerve endings of PFD patients are irreversibly changed in the aspects of electrophysiology, morphology and secretion functions, and all values of pelvic floor muscle surface myoelectric of old women are progressively attenuated, so that the function of the cooperative muscle groups is enhanced, and the guiding significance of coordination promotion to the old people is higher.
Therefore, it is an urgent problem to design an evaluation device with integrity, coordination and foresight.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide an apparatus for evaluating the coordination and the easy fatigue of the pelvic floor muscle group-focused muscle group and the cooperative muscle group, which can evaluate the coordination of the pelvic floor muscle group-focused muscle group and the cooperative muscle group and evaluate the easy fatigue of the pelvic floor muscle group-focused muscle group.
In order to achieve the above object, an embodiment of the present invention provides an apparatus for evaluating pelvic floor muscle mass-major and cooperative muscle group coordination and fatigue proneness, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the following steps when executing the computer program:
step 6, comparing the coordination degree corresponding to the single pelvic floor muscle with a standard coordination degree to determine a pelvic floor muscle key muscle group and a coordinated muscle group with abnormal coordination;
step 7, comparing the fatigue degree corresponding to the single pelvic floor muscle with the standard fatigue degree to determine a pelvic floor muscle key muscle group with abnormal easy fatigue degree;
and 8, outputting the pelvic floor muscle key muscle group and the cooperative muscle group with abnormal coordination and corresponding abnormal coordination, and outputting the pelvic floor muscle key muscle group with abnormal easy fatigue and corresponding abnormal easy fatigue.
In order to achieve the above object, an evaluation apparatus for pelvic floor muscle group coordination and easy fatigue is further provided in an embodiment, and includes:
the receiving module is used for receiving pelvic floor muscle surface electromyographic signals, abdominal muscle surface electromyographic signals and gluteus maximus surface electromyographic signals which are collected through the multi-channel electrode when the test action is carried out, and the signals are collectively called surface electromyographic signals; the device is also used for receiving the prompt time for issuing the test action command;
the coordination degree calculation module is used for determining muscle activation time according to the surface electromyogram signals for each channel, calculating the time difference between the activation time of each pelvic floor muscle and the prompt time, the first activation time difference between each pelvic floor muscle and the abdominal muscle and the second activation time difference between each pelvic floor muscle and the gluteus maximus according to the muscle activation time and the prompt time, and representing the coordination degree between the muscles;
the fatigue degree calculation module is used for calculating a normalized value of a median frequency value of the electric signal on the surface of the pelvic floor muscle aiming at each channel, and performing linear fitting on the normalized value to determine a slope value so as to represent the fatigue degree of the pelvic floor muscle;
the conversion module is used for determining the coordination degree and the fatigue degree corresponding to the single pelvic floor muscle according to the coordination degree and the fatigue degree determined by the single channel;
the abnormal coordination evaluation module is used for comparing the coordination degree corresponding to the single pelvic floor muscle with the standard coordination degree so as to determine a pelvic floor muscle key muscle group and a coordinated muscle group with abnormal coordination;
the abnormal easy fatigue degree evaluation module is used for comparing the fatigue degree corresponding to the single pelvic floor muscle with the standard fatigue degree so as to determine a pelvic floor muscle key muscle group with the abnormal easy fatigue degree;
and the output module is used for outputting the pelvic floor muscle major muscle group and the cooperative muscle group with abnormal coordination and corresponding abnormal coordination, and outputting the pelvic floor muscle major muscle group with abnormal easy fatigue and corresponding abnormal easy fatigue.
Compared with the prior art, the invention has the beneficial effects that at least:
the evaluation device receives surface electromyographic signals of pelvic floor muscles, abdominal muscles and gluteus maximus which participate in activities, and analyzes the coordination degree and the fatigue degree of muscle groups by taking pelvic and abdominal dynamics as theoretical guidance, so that the singleness and the limitation of the existing evaluation are solved.
The evaluation device combines the time characteristic, increases the evaluation dimension, visualizes the whole contraction process, brings the fatigue of the muscle into an evaluation system, can be quantitatively layered, accords with the corresponding states of the relative refractory period and the absolute refractory period in the contraction process of the muscle of the human body, and solves the problem of one-sidedness of evaluation in the prior art.
The evaluation device provided can be used for realizing the full-range evaluation of muscle cooperativity to guide doctors, help the doctors to make individual diagnosis and treatment plans for the old people with muscle function degeneration, and solve the problem of poor coverage of pelvic floor muscle evaluation people under the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flowchart illustrating an evaluation performed by the evaluation apparatus for pelvic floor muscle mass-related coordination and cooperative muscle mass-related coordination and fatigue susceptibility according to the embodiment;
FIG. 2 is a graph of surface electromyography data of the time of activation of pelvic floor muscles and surrounding cooperative muscle groups by a panel of disease testers under valsalva maneuver provided by the example;
FIG. 3 is a graph comparing the difference in activation time of pelvic floor muscles and abdominal muscles with cough action for healthy and disease group testers provided by the example;
FIG. 4 is a graph comparing the median frequency values in the region of the external anal sphincter and the straight line fit thereto when the healthy subjects and the disease group subjects performed a coughing event as provided by the example.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment provides an evaluation device for pelvic floor muscle mass emphasis and cooperative muscle mass coordination and fatigue susceptibility, which is a structural product with an evaluation function and specifically comprises a memory, a processor and a computer program stored in the memory and executable on the processor. The memory may be a volatile memory at the near end, such as RAM, a non-volatile memory, such as ROM, FLASH, a floppy disk, a mechanical hard disk, etc., or a remote storage cloud. The computer programs stored in the memories have the functions of evaluating the coordination and fatigability of the pelvic muscle major group and the cooperative muscle group. The processor may be a Central Processing Unit (CPU), a Microprocessor (MPU), a Digital Signal Processor (DSP), or a Field Programmable Gate Array (FPGA). When the processors execute the computer program, the evaluation on the coordination and the fatigability of the pelvic floor muscle major muscle group and the cooperative muscle group can be realized, as shown in fig. 1, the evaluation steps specifically realized include:
In the embodiment, the test actions are 3-100 for different pelvic floor muscle symptoms, one individual test action is selected for each evaluation, and the individual test actions are distributed to qualified testers, and of course, when the testers have multiple pelvic floor muscle symptoms, the testers can be distributed with multiple individual actions. The tester takes 10-20 seconds of single rest time for carrying out the test action each time, and carries out 2-30 simulation actions in total. The tester performs the test action in a mode of implementing a rest cycle in a mode of repeating the test action for a plurality of times. In the test period, the multichannel electrodes collect pelvic floor surface electromyographic signals, abdominal muscle surface electromyographic signals and gluteus maximus surface electromyographic signals, which are collectively called surface electromyographic signals. Specifically, for the characteristics of the pelvic floor muscles, 4-100 channels are adopted to collect surface electromyographic signals of each pelvic floor muscle, one channel may correspond to one pelvic floor muscle, and certainly, a plurality of channels may correspond to one pelvic floor muscle. For the characteristics of the abdominal muscles and the gluteus maximus, 1-4 channels can be adopted to collect the surface electromyographic signals of the abdominal muscles and the gluteus maximus. The collected surface electromyographic signals are received by an evaluation device and are used as original data for evaluation after filtering processing.
And step 2, receiving the prompt time for issuing the test action command.
In an embodiment, the tester performs the test action according to the test action command. The test action commands can be voice commands or video commands, and the evaluation device also receives the prompting time for issuing the test action commands, and the prompting time is used as a reference time for evaluating the activation time of the muscle.
And 3, determining muscle activation time according to the surface electromyogram signals for each channel, and calculating the time difference between the activation time and the prompt time of each pelvic floor muscle, the first activation time difference between each pelvic floor muscle and the abdominal muscle and the second activation time difference between each pelvic floor muscle and the gluteus maximus according to the muscle activation time and the prompt time so as to represent the coordination degree between the muscles.
In an embodiment, the determination of muscle activation time from surface electromyographic signals was explored in the following manner: and aiming at a certain time from the prompt time, when all the surface electromyographic signal values in the period of executing the test action within one second following the certain time are 10% -50% higher than the surface signal electromyographic value in the rest state, the certain time is the muscle activation time.
In the embodiment, for each process of implementing the test action, the prompt time for issuing the test action command under the standard time sequence is defined as T 0i The muscle activation time of each pelvic floor muscle at the same timing is T mi Then time difference
△T mi ＝T mi -T 0i Wherein m is a channel number index of the pelvic floor muscle, i is a test action execution frequency index, n is a total test action execution frequency, and T is mi Is understood as the muscle activation time, T, determined by the m-th channel surface myoelectric signal at the time of the i-th test action 0i Understood as the cue time at the time of the ith test action.
In an embodiment, the first activation time difference between each pelvic floor muscle and the abdominal muscle is calculated by:
first, the time difference between the activation time of the abdominal muscle and the presentation time is calculated
△T bi ＝T bi -T 0i Where b is a channel number index of the abdominal muscle, i is a test operation number index, n is a total test operation number, and T is 0i Indicating the time of a prompt, T, to issue a test action command at a standard timing bi Represents the muscle activation time of the abdominal muscles at the same time sequence;
then, the activation time of each pelvic floor muscle is compared with the presentation time by the time difference DeltaT m Time difference DeltaT b Calculating between pelvic floor muscles and abdominal muscles first activation time difference Δ S =Δt b -△T m 。
In an embodiment, the second activation time difference between each pelvic floor muscle and gluteus maximus is calculated by:
first, the time difference between the activation time and the presentation time of the gluteus maximus is calculated
△T ai ＝T ai -T 0i Wherein a is the index of the channel number of the gluteus maximus, i is the index of the number of times of test operation, n is the total number of times of test operation, and T 0i Indicating the time of a prompt, T, to issue a test action command at a standard timing ai Represents the muscle activation time of the gluteus maximus at the same time sequence;
then, the time difference Delta T between the activation time and the prompt time of each pelvic floor muscle is determined m Time difference DeltaT a Calculating a second activation time difference DeltaR =DeltaTbetween each pelvic floor muscle and gluteus maximus a -△T m 。
The time difference DeltaT to be obtained m The first activation time difference deltas, the second activation time difference deltar are used as characterizing the degree of coordination between the muscles.
And 4, calculating a normalized value of the median frequency value of the electrical signal on the surface of the pelvic floor muscle for each channel, and performing linear fitting on the normalized value to determine a slope value for representing the fatigue of the pelvic floor muscle.
In the examples, the normalized value NMF of the median frequency value of the electrical signal of the pelvic floor muscle surface was calculated in the following manner mn ：
Wherein, MF m1 Represents the median frequency value of the electrical signal of the pelvic floor muscle surface acquired through the mth channel during the first test action, and represents MF mn Represents the median frequency value of the pelvic floor muscle surface electrical signals collected through the mth channel when the test action is performed for the nth time.
After obtaining the normalized value NMF mn Then, normalizing the valueNMF mn A linear fit is performed to determine a slope value K that is used to characterize the fatigue of the pelvic floor muscles.
And 5, determining the corresponding coordination degree and fatigue degree of the single pelvic floor muscle according to the coordination degree and fatigue degree determined by the single channel.
When surface electromyogram signal acquisition is carried out, a plurality of channels can be adopted to acquire the surface electromyogram signal of a single pelvic floor muscle, so that the delta T determined by the single pelvic floor muscle corresponding to the plurality of channels is used for determining the coordination degree and the fatigue degree of the single pelvic floor muscle m Respectively carrying out average calculation on Delta S and Delta R to obtain average values
As the degree of coordination corresponding to a single pelvic floor muscle.
Aiming at the fatigue degree, the average calculation is also carried out on the K determined by the plurality of channels corresponding to the single pelvic floor muscle, and the obtained average value
As fatigue corresponding to a single pelvic floor muscle.
In the embodiment, a single pelvic floor muscle is divided into the left side and the right side, and the number of the pelvic floor muscles is 4-10.
And 6, comparing the coordination degree corresponding to the single pelvic floor muscle with the standard coordination degree to determine the pelvic floor muscle key muscle group and the cooperative muscle group with abnormal coordination.
In the embodiment, when evaluating the pelvic floor muscle major muscle group and the coordinated muscle group having abnormal coordination, and when the coordination degree value corresponding to the single pelvic floor muscle is opposite to the standard coordination degree value in positive and negative values, the single pelvic floor muscle is considered as the pelvic floor muscle major muscle group having abnormal coordination, and the evaluation is understood as follows: characterised by a measure of co-ordination when a single pelvic muscle corresponds
With degree of co-ordination with respect to a characterising standard
One of which exhibits the opposite positive or negative value, e.g.
Is shown as positive,
The sign is shown as being negative and,
and
the opposite of positive and negative values, the single pelvic floor muscle is considered to be the important pelvic floor muscle group with abnormal coordination.
When the coordination degree value corresponding to the single pelvic floor muscle is within 20% of the coordination degree value of the pelvic floor muscle key muscle group, the single pelvic floor muscle is considered as a coordinated muscle group with abnormal coordination, and the coordination degree value is understood as follows: characterization of the degree of coordination values for a single pelvic floor muscle of a subject
Corresponding to the pelvic floor muscle group
When one of the differences is within 20%, the single pelvic floor muscle is considered to be a cooperative muscle group with abnormal coordination.
And 7, comparing the fatigue degree corresponding to the single pelvic floor muscle with the standard fatigue degree to determine the pelvic floor muscle key muscle group with abnormal easy fatigue degree.
In the embodiment, when evaluating the pelvic floor muscle mass with abnormal fatigability, when the fatigue value corresponding to a single pelvic floor muscle is greater than 20% of the standard fatigue value, the single pelvic floor muscle is considered as the pelvic floor muscle mass with abnormal fatigability, and the method is understood as follows: and when the absolute value of the K corresponding to the single pelvic floor muscle is more than 20% of the absolute value of the standard K0, the single pelvic floor muscle is considered as the pelvic floor muscle key muscle group with abnormal fatigability.
In an embodiment, the fatigue susceptibility condition is further quantified according to the difference between the fatigue value and the standard fatigue value as follows: when the difference value is between 20 and 30 percent, the fatigue is considered to be light and easy to fatigue; when the difference is 30-40%, the degree of fatigue is considered to be moderate; when the difference is 40% -50%, the fatigue is considered to be severe and easy to fatigue; when the difference is more than 50%, the fatigue is considered to be serious, and the fatigue is understood to be slight when the absolute value K to the absolute value K0 is between 20 and 30 percent; when the absolute value K to the absolute value K0 is 30-40%, the fatigue is considered to be moderate and easy to fatigue; when the absolute value of K-K0 is 40% -50%, the fatigue is considered to be severe and easy to fatigue; when the value of K to K0 is more than 50%, the fatigue is considered to be serious.
And 8, outputting the pelvic floor muscle key muscle group and the cooperative muscle group with abnormal coordination and corresponding abnormal coordination, and outputting the pelvic floor muscle key muscle group with abnormal easy fatigue and corresponding abnormal easy fatigue.
In the embodiment, the pelvic floor muscle major muscle group and the cooperative muscle group evaluated as abnormal coordination are output, and the corresponding characteristic coordination is output
The pelvic floor muscle mass which is evaluated as abnormally fatigable is also output, and K which characterizes the fatigable is also output.
The experimental examples carried out using the evaluation apparatus provided in the examples are:
specifically, aiming at the pelvic floor organ prolapse symptom, the test actions distributed to the tester are cough, valsalva actions and pelvic floor muscle full-force contraction actions for 10 seconds, the actions are performed and timed in a cycle mode of implementation-rest, the rest time of each action is 10 seconds, and each action is implemented for 5 times in total; and recording the time point of occurrence of the voice prompt of each action. The multi-channel electrode is used for measuring regional pelvic floor muscle data and comprises 24 channels, the standard electrocardio-patch electrode is used for measuring data of abdominal muscles and gluteus maximus, the channels of the two muscles are 1 respectively, and collected myoelectric data are used as original data after being filtered.
As shown in fig. 2, the time of voice command broadcasting is marked, and surface electromyography data of two pelvic floor muscle regions, abdominal muscles and gluteus maximus which act after receiving the command of a tester in a disease group is shown, and a large muscle activation delay is shown among several channels. Fig. 3 shows a comparison of the mean activation time difference Δ S of the pelvic floor muscle-abdominal muscle of the healthy group of testers and the diseased group of testers during the rest-exercise action when the cough action is performed.
As shown in FIG. 4, during 5 cough movements, the median frequency of each movement was 104.56Hz,89.83Hz,88.26Hz,82.32Hz,82.2Hz, and the slope K of the straight line after linear fitting was-3.22; during 5 cough movements, the median frequency of each movement was 72.72Hz,70.63Hz,66.28Hz,70.09Hz,69.29Hz, and the slope K of the line after linear fitting was-0.74.
In the conversion of the corresponding relationship between the channels and the single pelvic floor muscle, in a specific embodiment, 24 pelvic floor muscle acquisition channels respectively correspond to 6 pelvic floor muscle muscles which are bilaterally symmetric, and the steps are as follows: the external sphincter of vagina, urethra sphincter, external sphincter of anus, puborectalis muscle, pubococcygeus muscle, iliococcygeus muscle, each muscle according to the myoelectric signal of the corresponding passageway of region. According to the evaluation results of the examples, in conjunction with fig. 3, the patients in the disease group had positive and negative Δ S values of 12 channels of the sphincter vaginae, the sphincter urethras and the puborectalis muscles, as opposed to the healthy group, i.e., the patients responded to contract slower in the region of the pelvic floor muscles than in the abdominal muscles after receiving the instructions, and the healthy patients responded faster in the region of the pelvic floor muscles than in the abdominal muscles, and the sphincter vaginae, the sphincter urethras and the puborectalis muscles were set as the focal muscle groups of abnormal coordination; the mean Δ S in the pubococcygeus region differed from the mean Δ S in the puborectalis region by 16.7%, defining the cooperative muscle group.
According to the example evaluation results, in conjunction with fig. 4, patients in this disease group assessed a normal status with an absolute value of the fitting slope K at the vaginal sphincter that is 14.32% higher than the absolute value of the fitting slope K at the healthy testers, 5.17% higher than the absolute value of the fitting slope K at the urinary sphincter, not higher than 20%; the composition is 37.75 percent higher than a healthy tester at the puborectalis muscle, is 30.88 percent higher than a healthy tester at the pubococcygeus muscle and is between 30 and 40 percent, and the composition is evaluated as moderate and easy to fatigue; above 106.44 for the healthy tester at the external anal sphincter, above 84.87% for the healthy tester at the iliococcygeus muscle, above 50%, was rated as severely fatiguable.
The traditional evaluation device for the surface myoelectricity of the pelvic floor muscles focuses on the electrophysiological properties of the pelvic floor muscle groups, can combine the activity characteristics of the pelvic floor muscle groups and surrounding cooperative muscle groups, evaluates the coordination of the pelvic abdomen and the hip by observing the muscle activation time difference and brings the muscle fatigue degree into an evaluation system, better accords with the overall characteristics of human physiological activities, is particularly beneficial to evaluating a contraction mode compensated by the cooperative muscle groups under symptoms, overcomes the singleness of an evaluation object in the traditional method, and realizes accurate positioning of target muscle groups by detecting the parameter setting range of healthy people.
Based on the same inventive concept, the embodiment also provides an evaluation device for the coordination and the fatigability of the pelvic floor muscle major muscle group and the cooperative muscle group, which comprises:
the receiving module is used for receiving pelvic floor muscle surface electromyographic signals, abdominal muscle surface electromyographic signals and gluteus maximus surface electromyographic signals which are collected through the multi-channel electrode when the test action is carried out, and the signals are collectively called surface electromyographic signals; the device is also used for receiving the prompt time for issuing the test action command;
the coordination degree calculation module is used for determining muscle activation time according to the surface electromyogram signals for each channel, calculating the time difference between the activation time of each pelvic floor muscle and the prompt time, the first activation time difference between each pelvic floor muscle and the abdominal muscle and the second activation time difference between each pelvic floor muscle and the gluteus maximus according to the muscle activation time and the prompt time, and representing the coordination degree between the muscles;
the fatigue degree calculation module is used for calculating a normalized value of a median frequency value of the electric signal on the surface of the pelvic floor muscle aiming at each channel, and performing linear fitting on the normalized value to determine a slope value so as to represent the fatigue degree of the pelvic floor muscle;
the conversion module is used for determining the coordination degree and the fatigue degree corresponding to a single pelvic floor muscle according to the coordination degree and the fatigue degree determined by the single channel;
the abnormal coordination evaluation module is used for comparing the coordination degree corresponding to the single pelvic floor muscle with the standard coordination degree so as to determine a pelvic floor muscle key muscle group and a coordinated muscle group with abnormal coordination;
the abnormal easy fatigue degree evaluation module is used for comparing the fatigue degree corresponding to the single pelvic floor muscle with the standard fatigue degree so as to determine a pelvic floor muscle key muscle group with the abnormal easy fatigue degree;
and the output module is used for outputting the pelvic floor muscle major muscle group and the cooperative muscle group with abnormal coordination and corresponding abnormal coordination, and outputting the pelvic floor muscle major muscle group with abnormal easy fatigue and corresponding abnormal easy fatigue.
It should be noted that, when the evaluation device for pelvic muscle mass key muscle group and cooperative muscle group coordination and easy fatigue provided in the foregoing embodiment is used for evaluation, the division of the functional modules is taken as an example, and the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the terminal or the server is divided into different functional modules, so as to complete all or part of the functions described above. The specific implementation process is detailed in the process implemented in step 1 to step 7, and is not described herein again.
The above-mentioned embodiments are intended to illustrate the technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only the most preferred embodiments of the present invention, and are not intended to limit the present invention, and any modifications, additions, equivalents, etc. made within the scope of the principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. An apparatus for evaluating pelvic floor muscle mass-focusing and cooperative muscle mass coordination and susceptibility to fatigue, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to perform the steps of:
step 1, receiving pelvic floor muscle surface electromyographic signals, abdominal muscle surface electromyographic signals and gluteus maximus surface electromyographic signals which are collected through a multi-channel electrode when a test action is carried out, wherein the signals are collectively called surface electromyographic signals;
step 2, receiving the prompt time for issuing the test action command;
step 3, determining muscle activation time according to the surface electromyogram signals for each channel, and calculating the time difference between the activation time and the prompt time of each pelvic floor muscle, the first activation time difference between each pelvic floor muscle and an abdominal muscle, and the second activation time difference between each pelvic floor muscle and a gluteus maximus according to the muscle activation time and the prompt time so as to represent the coordination degree between the muscles;
step 4, calculating a normalized value of the median frequency value of the pelvic floor muscle surface electric signal for each channel, and performing linear fitting on the normalized value to determine a slope value for representing the fatigue of the pelvic floor muscle;
step 5, determining the coordination degree and fatigue degree corresponding to a single pelvic floor muscle according to the coordination degree and fatigue degree determined by the single channel;
step 6, comparing the coordination degree corresponding to the single pelvic floor muscle with the standard coordination degree to determine a pelvic floor muscle key muscle group and a cooperative muscle group with abnormal coordination;
step 7, comparing the fatigue degree corresponding to the single pelvic floor muscle with the standard fatigue degree to determine a pelvic floor muscle key muscle group with abnormal easy fatigue degree;
and 8, outputting the pelvic floor muscle key muscle group and the cooperative muscle group with abnormal coordination and corresponding abnormal coordination, and outputting the pelvic floor muscle key muscle group with abnormal easy fatigue and corresponding abnormal easy fatigue.
2. The apparatus for evaluating the coordination and fatigability of the pelvic floor muscle mass emphasis and synergy muscle mass according to claim 1, wherein the determining the muscle activation time based on the surface electromyography signal comprises:
and aiming at a certain moment from the prompting time, when all surface electromyographic signal values during the period of executing the test action within one second following the certain moment are 10% -50% higher than the surface signal electromyographic value in the rest state, the certain moment is the muscle activation time.
3. The apparatus for evaluating the coordination and fatigue liability of the pelvic floor muscle group as claimed in claim 1, wherein the calculating the time difference between the activation time and the cue time of each pelvic floor muscle based on the muscle activation time and the cue time comprises:
defining the prompt time of issuing test action command under standard time sequence as T 0i The muscle activation time of each pelvic floor muscle at the same timing is T mi Then time difference
△T mi ＝T mi -T 0i Wherein m is a channel number index of the pelvic floor muscle, i represents a test action implementation frequency index, and n represents a total test action implementation frequency.
4. The apparatus for evaluating the coordination of the pelvic floor muscle group and the cooperative muscle group and the susceptibility to fatigue according to claim 1, wherein the first activation time difference between each of the pelvic floor muscles and the abdominal muscles is calculated by:
first, the time difference between the activation time of the abdominal muscle and the presentation time is calculated
△T bi ＝T bi -T 0i Where b is a channel number index of the abdominal muscle, i is a test operation number index, n is a total test operation number, and T is 0i Indicating the time of a prompt, T, to issue a test action command at a standard timing bi Represents the muscle activation time of the abdominal muscle at the same time sequence;
then, the activation time of each pelvic floor muscle is compared with the presentation time by the time difference DeltaT m Time difference DeltaT b Calculating the first activation between the pelvic floor muscles and the abdominal musclesDifference between Δ S =Δt b -△T m 。
5. The apparatus for evaluating the compatibility and fatigability of pelvic floor muscle mass emphasis and cooperative muscle mass coordination according to claim 1, wherein the second activation time difference between each of the pelvic floor muscles and the gluteus maximus is calculated by:
first, the time difference between the activation time of the gluteus maximus and the presentation time is calculated
△T ai ＝T ai -T 0i Wherein a is the index of the channel number of the gluteus maximus, i is the index of the number of times of test operation, n is the total number of times of test operation, and T 0i Indicating the time of a prompt, T, to issue a test action command at a standard timing ai Represents the muscle activation time of the gluteus maximus at the same time sequence;
then, the time difference Delta T between the activation time and the prompt time of each pelvic floor muscle is determined m Time difference DeltaT a Calculating a second activation time difference Δ R =ΔT between each pelvic floor muscle and gluteus maximus a -△T m 。
6. The apparatus for evaluating the coordination and fatigability of the pelvic muscle major group and the cooperative muscle group according to claim 1, wherein the normalized value NMF of the median frequency value of the electrical signal on the surface of the pelvic muscle is calculated by mn ：
Wherein, MF m1 Representing the median frequency value of the electrical signals of the pelvic floor muscle surface acquired through the mth channel during the first test run, and representing MF mn Represents the median frequency value of the pelvic floor muscle surface electrical signals collected through the mth channel when the test action is performed for the nth time.
7. The device for evaluating the coordination and fatigue proneness of the pelvic floor muscle group as claimed in claim 1, wherein in step 5, when the multiple channels correspond to a single pelvic floor muscle, the average values of the coordination degree and fatigue degree determined by the multiple channels corresponding to the single pelvic floor muscle are calculated as the coordination degree and fatigue degree corresponding to the single pelvic floor muscle.
8. The apparatus for evaluating the coordination and fatigability of the pelvic floor muscle mass emphasis and synergy muscle group according to claim 1, wherein the pelvic floor muscle mass emphasis and synergy muscle group having abnormal coordination is determined by comparing the degree of coordination corresponding to a single pelvic floor muscle with the standard degree of coordination, and the apparatus comprises:
when the coordination degree value corresponding to the single pelvic floor muscle is opposite to the standard coordination degree value in positive and negative values, the single pelvic floor muscle is considered as a pelvic floor muscle key muscle group with abnormal coordination;
and when the difference between the coordination degree value corresponding to the single pelvic floor muscle and the coordination degree value of the key pelvic floor muscle group is within 20%, the single pelvic floor muscle is considered as the cooperative muscle group with abnormal coordination.
9. The apparatus for evaluating the coordination and fatigability of the pelvic floor muscle mass emphasis and cooperative muscle mass according to claim 1, wherein the apparatus for determining the pelvic floor muscle mass having abnormal fatigability by comparing the fatigability corresponding to a single pelvic floor muscle with the standard fatigability comprises:
when the fatigue value corresponding to a single pelvic floor muscle is more than 20% of the standard fatigue value, the single pelvic floor muscle is considered as a pelvic floor muscle key muscle group with abnormal easy fatigue, and the easy fatigue condition is quantified according to the difference value of the fatigue value and the standard fatigue value:
when the difference is between 20 and 30 percent, the fatigue is considered to be slight and easy to fatigue;
when the difference is 30-40%, the fatigue is considered to be moderate and easy fatigue;
when the difference is 40% -50%, the fatigue is considered to be severe and easy to fatigue;
when the difference is more than 50%, it is considered to be a serious fatigue susceptibility.
10. An assessment device for pelvic floor muscle mass-focus muscle group and cooperative muscle group coordination and susceptibility to fatigue, comprising:
the receiving module is used for receiving pelvic floor muscle surface electromyographic signals, abdominal muscle surface electromyographic signals and gluteus maximus surface electromyographic signals which are collected through the multi-channel electrode when the test action is carried out, and the signals are collectively called surface electromyographic signals; the device is also used for receiving the prompt time for issuing the test action command;
the coordination degree calculation module is used for determining muscle activation time according to the surface electromyogram signals for each channel, calculating the time difference between the activation time of each pelvic floor muscle and the prompting time, the first activation time difference between each pelvic floor muscle and the abdominal muscle and the second activation time difference between each pelvic floor muscle and the gluteus maximus according to the muscle activation time and the prompting time, and representing the coordination degree between the muscles;
the fatigue degree calculation module is used for calculating a normalized value of a median frequency value of the pelvic floor muscle surface electric signal for each channel, and performing linear fitting on the normalized value to determine a slope value so as to represent the fatigue degree of the pelvic floor muscle;
the conversion module is used for determining the coordination degree and the fatigue degree corresponding to a single pelvic floor muscle according to the coordination degree and the fatigue degree determined by the single channel;
the abnormal coordination evaluation module is used for comparing the coordination degree corresponding to the single pelvic floor muscle with the standard coordination degree so as to determine a pelvic floor muscle key muscle group and a coordinated muscle group with abnormal coordination;
the abnormal easy fatigue degree evaluation module is used for comparing the fatigue degree corresponding to the single pelvic floor muscle with the standard fatigue degree so as to determine a pelvic floor muscle key muscle group with the abnormal easy fatigue degree;
and the output module is used for outputting the pelvic floor muscle major muscle group and the cooperative muscle group with abnormal coordination and corresponding abnormal coordination, and outputting the pelvic floor muscle major muscle group with abnormal easy fatigue and corresponding abnormal easy fatigue.
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