The Effect Of Compression Pants Based On Semg Technology On Muscular Fatigue In Lower Limbs And Study Of Muscle Fatigue Threshold

In this paper,the subject will be under different exercise intensity,the lower extremities are wearing different tight compression compression trousers,uniform running to exercise fatigue process,the specific muscle surface EMG signal measurement records,while the test the person's heart rate and subjective fatigue are recorded in real time.Combining subjective fatigue and heart rate with the measured surface EMG signal data,Matlab R2016b and other software are used to process the original data.Significant difference test,two-factor analysis of variance,and LSD multiple comparisons are used to study tight compression and the effect of exercise intensity on the fatigue of each test muscle was analyzed to obtain the optimal tight compression of each muscle under the experimental conditions,which provided theoretical guidance for the design and development of sports compression pants and found the most representative of the subject's exercise fatigue.Surface electromyographic indicators.In the end,using BP neural network to predict the exercise fatigue of the muscles under different conditions during the exercise process,and verify the validity of the model by verifying the BP neural network model constructed by the experimental dataThrough experiments,the maximum heart rate of each subject was measured first The medium and strong intensity of the subject's motion during the experiment was the corresponding movement speed when the subject's heart rate reached 65%and 85%of the maximum heart rateThe 25 participants participating in the experiment will complete two experiments on the treadmill with medium-intensity exercise load and high-intensity exercise load,respectively,in the absence of tight compression of the lower extremities,moderate tight compression,and highly tight compression.That is,each subject will complete six uniform running tests to exercise fatigue testsFor each test,the preloaded load mode was used.The subjects took a 5 minutes acceleration jog on a treadmill and the exercise load rose to a predetermined load intensity at this stage.During the running process,the subject's heart rate was recorded,and subjective physical fitness scale(RPE)was used to determine the degree of exercise fatigue of the subject.After the subject had run to exhaustion with a predetermined load,the experiment was ended,data recording was stopped,and a recovery finishing exercise was performedIn order to prevent the effect of over-recovery on the experimental results,all subjects were forbidden to perform violent activities for one week before the experiment was started.The same subject performed two different experimental tests at intervals of one week.Subjects were required to maintain normal diet and regular routines throughout the experimentAnalysis conclusion1)The iEMG and MF values of the lateral femoris and rectus femoris muscles can be used as the surface EMG reference index for subjects with exercise fatigue during running to fatigue2)There was a significant correlation between exercise fatigue and exercise intensity and tight pressure(P<0.01).In other words,exercise intensity and tightness compression have a significant effect on subjects' exercise fatigue3)For the vastus lateralis muscle,the medial femoris muscle,and the biceps femoris muscle,moderate tightness compression can relieve fatigue of the muscle better than no tight compression,but as the tightness compression becomes larger,its alleviation effect will be weakened;4)For the rectus femoris muscles,the highly tight compression can relieve the fatigue of the rectus femoris better than moderate tight compression and no tight compression.Moderate tightness compression has a certain degree of relief compared to no tightness compression,but it is not as effective as a highly tight compression;5)For sports compression equipment manufacturing companies,when designing sports compression pants,it is recommended to apply proper height and tightness compression to the rectus femoris muscle;lateral femoral,femoral medial,and biceps femoris need to apply proper moderate tightness compression relieves fatigue of lower limb muscles.