An Empirical Study On The Effect Of High-intensity Interval Training On Weight Loss In Obese Female College Student

Research background:Obesity is a potential cause of various chronic diseases,which not only increases the burden on society,but also reduces the quality of life of the group.In China,the obesity rate of college students is becoming increasingly prominent,and the obesity rate of college students in 2020 is 5.5%,and the physical health failure rate caused by obesity has reached 30%.The effect of exercise to lose weight has been recognized,and high-intensity intermittent exercise has a good weight loss effect on obese people,and is welcomed by obese groups.As a kind of high-intensity exercise,Tabata training has been widely welcomed among young healthy groups in recent years because of its flexible and diverse movements and good effect on muscle building and weight loss.However,for the obese group of college students,there are few studies on using Tabata training movements to lose weight,which may be related to its high exercise intensity and difficulty in completing movements,and the difficulty in completing movements of obese people.Research purpose:This study combined with Tabata movement and mode,adopted the high intensity interval training method of gradual and incremental load to carry out exercise intervention for obese female college students,compared the weight loss effect of high intensity interval training on obese female college students,and provided reference for obese female college students to choose personalized exercise and weight loss programs,and also provided practical support for improving the exercise prescription library of obese people.Research methods:(1)Literature data method: Relevant domestic research was collected from CNKI,Wanfang Data Knowledge Service platform and other libraries,and relevant foreign research data was collected through Pub Med,WOS and other foreign databases.(2)Experimental method:A)Determine the subjects: Recruit the subjects through poster publicity in Fengxian Campus of Shanghai Normal University,and conduct preliminary screening on the basis of inclusion criteria and exclusion criteria.After screening,18 obese subjects,as control group,did not participate in exercise intervention according to random principle;Seventeen obese subjects were used as exercise intervention group and underwent exercise intervention.According to the shedding criteria,the control group lost 4 people and the exercise intervention group lost 3 people.B)Formulation of exercise prescription: high intensity interval training should be conducted online and offline;The maximum heart rate of 75% or more was used as the exercise intensity during the intervention,and the whole exercise monitoring was carried out.Follow the movements taught by the tester for about 30 minutes three times a week for 8 weeks.C)Testing of relevant indicators: Body shape indicators include conventional shape indicators(body weight,BMI,WHR,body fat percentage),Overall body composition indicators(fat-free body weight,fat content,muscle content,visceral fat content,visceral fat area,subcutaneous fat content)and different body composition indicators(upper left and lower limb muscle mass,upper right and lower limb muscle mass,upper left and lower limb fat percentage,upper right and lower limb fat percentage,trunk muscle mass,trunk fat percentage);Physical function indexes include SBP,DBP,VO2 max,vital capacity and resting heart rate.Physical fitness indicators include standing long jump,sit-ups,50 meters,800 meters,sitting forward bend,and standing on one foot with eyes closed.(3)Mathematical statistics: All data were sorted and analyzed using Spss26.0data package.Descriptive statistics were used to organize the basic data,and the normal test of the data was carried out.Independent sample T test was used for comparison between groups,and paired sample T test was used for comparison before and after intervention.The research results:1.Body shape:Before intervention,there was no statistical difference between the exercise intervention group and the control group(P > 0.05).After the intervention,the body weight,BMI,WHR and body fat percentage in the exercise intervention group were significantly decreased(P < 0.05).After the intervention,the body weight,BMI,WHR and body fat percentage in the exercise intervention group were significantly decreased(P < 0.05).Before intervention,there was no significant difference between the exercise intervention group and the control group in the overall index of body composition(P > 0.05).After the intervention,the body weight,fat content,muscle content,visceral fat content,area and subcutaneous fat content in the exercise intervention group were significantly decreased(P < 0.05).After the intervention,the body fat removal weight,fat content,subcutaneous fat content,muscle content,visceral fat area and content were significantly decreased in the exercise intervention group(P < 0.05).The visceral fat area and visceral fat content of the control group were significantly increased after intervention(P < 0.05),but there was no statistical difference in other indexes(P > 0.05).Before intervention,there was no significant difference in body composition between exercise intervention group and control group(P > 0.05).After the intervention,muscle mass in the upper left and lower extremities,muscle mass in the upper right and lower extremities,fat percentage in the upper left and lower extremities,fat percentage in the upper right and lower extremities and trunk fat percentage in the exercise intervention group were significantly decreased(P < 0.05).After intervention,muscle mass of left upper and lower limbs,muscle mass of right upper and lower limbs,left upper and lower fat percentage,right upper and lower fat percentage and trunk fat percentage in exercise intervention group were significantly decreased(P < 0.05).There was no significant difference in control group(P > 0.05).2.Physical functions:Before intervention,there was no significant difference between exercise intervention group and control group(P > 0.05).After intervention,the VO2 max and vital capacity of the exercise intervention group were significantly increased(P <0.05),and the resting heart rate were significantly decreased(P < 0.05).After intervention,SBP in exercise intervention group was significantly decreased(P < 0.05),VO2 max and vital capacity were significantly increased(P <0.05);There were no significant differences in SBP,DBP,VO2 max and vital capacity in the control group(P > 0.05),but the resting heart rate increased significantly(P <0.05).3.Physical fitness:Before intervention,there was no significant difference between exercise intervention group and control group(P > 0.05).After the intervention,the endurance quality of 800 meters,strength quality sit-up and standing long jump,speed quality of50 meters and balance quality of one-legged standing with eyes closed were significantly increased in the exercise intervention group(P < 0.05),but there was no statistical difference in the flexion of flexibility quality(P > 0.05).After intervention,in the exercise intervention group,the endurance quality of800 m,the strength quality of sit-up and standing long jump,the speed quality of 50 m,the flexibility quality of sitting forward bending and the balance quality of standing with eyes closed were significantly improved(P < 0.05).In the control group,there were no significant changes in strength sit-ups and balance standing on one leg with eyes closed(P < 0.05),and the other indexes had no statistical changes(P >0.05).Research conclusion:After 8 weeks of high-intensity interval training,the body shape of obese female college students has been improved,the body function has been enhanced,and the physical quality has been improved.It can be seen that high-intensity interval training combined with Tabata movement and pattern has a good effect on weight loss of obese female college students.