Study On The Rate And Muscle Oxygen Changes Of College Students In The Twenty-four Style Taijiquan And Ba Duan Jin Sports Center

Objective:In recent years,the State Council issued a document clearly stipulates that it should support the promotion of traditional Chinese sports such as Tai Chi and Health Qigong.More and more scholars have verified that the two fitness exercises have a certain effect on the health of the body.There are few studies on the mechanism of two kinds of exercise and fitness effects.This study provides a certain data support for the study of the mechanism of fitness effects of Taijiquan and Ba Duanjin by analyzing the heart rate and the changes of muscle oxygen in the two sports.Methods:The subjects were 15 male students and 14 female students,with a total of 29 healthy college students（mean age 23.9±2.1 years）.During the Twenty-four style Taijiquan and Ba Duanjin exercise,the Portamon muscle oxygen monitor was used to monitor the muscle oxygen saturation（TSI%）,Hemoglobin（HbO₂）,reduced hemoglobin（HHb）,and total hemoglobin（tHb）in the biceps,erector spinae,lateral femoral muscle and gastrocnemius muscle,while wearing a Polar heart rate belt to record heart rate in both sports.The difference between the exercise heart rate and the resting heart rate is used to express the heart rate change,and the absolute value of the difference between the exercise muscle oxygen index and the resting muscle oxygen index is used to indicate the change of the muscle oxygen index.Data were statistically processed using SPSS 23.0 software.Paired sample T test was used for comparison between different items.Independent sample T test was used for comparison between different genders.Correlation analysis between muscle oxygen saturation and heart rate was performed by Pearson correlation analysis.P<0.05 was a significant level and P<0.01 was a very significant level.Results:1.In the Twenty-four styles of Taijiquan and Ba Duanjin,the heart rate of the subjects varied from 68 to 109 times/division.There was no significant difference in heart rate between boys and girls during the two sports（P>0.05）.2.There was a significant difference in the changes of TSI%and HHb in the gastrocnemius muscle between the two exercises（P<0.05）.There was no significant difference in the changes of HbO₂ and tHb in the muscles of the four sites（P>0.05）.3.In the Twenty-four-style Taijiquan exercise,there were significant differences in the changes of HHb（P<0.01）in the gastrocnemius and TSI%（P<0.05）in the biceps of boys and girls.In the sports of Ba Duan Jin,there were significant differences in the changes of TSI%（P<0.01）,HHb（P<0.01）,HbO₂（P<0.05）in the biceps and HHb（P<0.01）in the gastrocnemius of boys and girls.In both sports,the amount of muscle oxygen changes in all parts of boys was higher than that in girls.4.In the twenty-four styles of Taijiquan and Ba Duanjin exercise,muscle oxygen saturation and heart rate were negatively correlated with medium and high altitude.Twenty-four patterns of taijiquan were highly negative correlated r=-0.843（P<0.01）,while baduanjin was moderately negative correlated r=-0.449（P<0.01）.Conclusions:1.For the group of college students,Twenty-four style Taijiquan and Ba Duanjin are low-intensity sports.During exercise,the muscles of the biceps,erector spinae,lateral femoral and gastrocnemius have the same exercise effect,but the twenty-four style Taijiquan can exert better exercise effect on the gastrocnemius muscle.2.In the Twenty-four style Taijiquan and Ba Duanjin sports,the muscle muscle oxygen utilization in different parts of boys is higher than that of girls.3.Muscle oxygen saturation has a good correlation with heart rate and can be used as an indicator of exercise intensity.