Study On The Effect Of Compression Pressure On Fatigue In Sports

With the development of society,more and more people take part in sports,and various kinds of compression clothing are becoming more and more popular.Many compression pants in the market have the function of delaying fatigue and promoting fatigue recovery,but in fact,they may not have this function at all.If you can't choose compression pants correctly,you can't delay fatigue,or even increase muscle fatigue It can increase the risk of injury of sportsmen,so it is very important to study the influence of compression pants' clothing pressure on fatigue.On the one hand,it can provide theoretical basis for consumers to choose compression pants with appropriate clothing pressure.On the other hand,it can provide certain clothing pressure reference for compression clothing enterprises to produce compression pants.Market research.Through market research and interviews,it is found that there is a great demand for compression pants,but the impact of compression pants' clothing pressure on fatigue is not clear.Running is taken as an experimental sport type,2XU is taken as the brand of sample pants,and the pants of elite series of the brand are taken as the experimental sample pants.Experimental design.In order to study the influence of compression pants clothing pressure on fatigue in sports,the s,m and l codes of the elite series of compression pants of 2XU brand are used to represent the high,medium and low clothing pressure respectively,and no compression pants are used as the blank control group to express no pressure;then three kinds of exercise intensities of the subjects are determined through the constant load experiment;under the three different exercise intensities,the subjects are respectively in the high,medium and low In the experiment,the heart rate and the surface electromyography signals of muscles were collected,and the fatigue degree of muscles was evaluated subjectively.Measurement and analysis of clothing pressure.Using Flexiforce sensor and Lab VIEW wireless pressure test system,the pressure distribution of compression pants is analyzed on wooden leg mold.The subjects wore S,M and L-size compression pants respectively,measured the dynamic and static clothing pressure of 8 muscles,and analyzed the change rule of clothing pressure.Objective and subjective analysis of the influence of clothing pressure on fatigue.After analyzing the subjective and objective indexes of each muscle under different clothing pressures,it is found that there is a strong correlation between the mean square root amplitude(RMS)of s EMG time domain indexes of gastrocnemius,tibialis anterior,semitendinosus and biceps femoris and the subjective fatigue evaluation indexes.The mean frequency(MF)of s EMG frequency domain indexes of lateral femoris,rectus femoris and gluteus maximus has a good correlation with the subjective fatigue evaluation scores,However,there was no significant correlation between the subjective evaluation score of soleus muscle and the time and frequency(RMS,MF)of SEMG.Under three different exercise intensities,the blank control group and the compression pants were paired with ttest.It was found that in the middle and high exercise intensities,the compression pants were beneficial to reduce the heart rate of the sportsmen,to some extent,to slow down the fatigue of the human body,but in the low intensity exercise strength The results showed that the heart rate of the athletes was not decreased,and the clothing pressure which could reduce the fatigue most was found by the method of one-way ANOVA.The neural network model of clothing pressure and fatigue is established.Based on the special nonlinear adaptive information processing ability of artificial neural network and the BP neural network of MATLAB,a neural network model of sural muscle's RMS value is established when the two characteristic values of clothing pressure and exercise intensity and subjective fatigue are obvious.After the test of test set,it is found that the target value and output value are basically in the same straight line,which verifies the reliability of the model.