Effects Of Sprint Interval Training With Different Arrangement To Physical Fitness Of College Student

Background:In recent years,high intensity interval training(HIIT)as a popular way of fitness,the positive impact of training has been widely concerned and deeply studied by scholars at home and abroad.High intensity interval sprint training(SIT),a training mode belonging to HIIT,has gradually entered the public field of vision.The application of sit has not been widely promoted and discriminated.Because the sit training mode is used in this study,and the training arrangement under sit mode is studied separately,in order to find a more suitable physical fitness training scheme for ordinary healthy college students and urban healthy people in the current normalized epidemic prevention environment,and stabilize the healthy situation.Objective:To study whether six weeks sit can have a positive effect on physical fitness of healthy college students.Methods:A total of 26 subjects were randomly divided into body weight resistance passive recovery group(M/F=5/3;n=6);Age=19.62±1.4;Height=1.72±0.09;Body weight=65.87±15.47;BMI=21.9±18)and body weight resistance active recovery group(M/F=2/7;Age=20.88±1.96;Height=1.71±0.06;Body weight=67.77±18.15;BMI=23.01±92)and mixed resistance passive recovery group(M/F=7/2;Age=20±1.73;Height=1.77±0.09;Body weight=74.9±12.95;BMI=23.6±2.81).All three groups completed SIT with different arrangements twice a week and 12 times a week.The body weight resistance passive recovery group was used as the control group.Before and after the intervention,the subjects completed seven points skinfold thickness measurement,waist and hip circumference measurement,YYIR1 intermittent sprint test,Pittsburgh sleep quality questionnaire and physical activity pleasure scale.After each training,all the subjects completed the physical activity pleasure scale.Results:1)The body weight resistance passive recovery group(control group);:Waist circumference,hip circumference,waist to hip ratio,body fat rate,seven points skinfold thickness and PACES scores were not significantly different(P>0.05),YYIR1 score and PQSI score were significantly different before and after training(P<0.05),and VO2max score was significantly different before and after training(P=0.011).2)The body weight resistance active recovery group(experimental group A):There were no significant differences in waist circumference,hip circumference,waist hip ratio,body fat rate,seven points skinfold thickness and PACES scores before and after training(P>0.05),but there were extremely significant differences in YYIR1 score(P<0.01),and extremely significant differences in VO2max score before and after training(P=0.005).3)The hybrid impedance passive recovery group(experimental group B):There was no significant difference in waist circumference,hip circumference,waist hip ratio,seven points skinfold thickness and pace score between the two groups(P>0.05).There was significant difference in bodyfat rate before and after training(P<0.05)There was significant difference in YYIR1 score before and after training(P=0.03).There was extremely significant difference in VO2max score before and after training(P=0.008)4)There was no significant difference in waist circumference,hip circumference,waist hip ratio,seven points skinfold thickness,PACES score,PQSI,YYIR1 score and VO2max between groups(P>0.05)Conclusion:SIT with different arrangements twice a week for 6 weeks can significantly improve the YYIR1 score of ordinary college students without special subject,and there is extremely significant difference before and after body weight resistance active recovery group;Compared with the other two groups,mixed impedance SIT can effectively reduce the fat rate,and significantly reduce the skinfold thickness at the junction of xiphoid/sternum level and axillary midline,and the skinfold thickness at the anterior superior iliac crest(where the anterior axillary line passes over the anterior superior iliac crest and pinches the skinfold obliquely along the natural direction of the iliac wing).After training,the three groups did not affect PQSI,which led to deep fatigue.