Study of the Impact of Interval Time Effect on the Improvement of Muscle Strength and Cardiorespiratory Endurance of Female College Students Through Concurrent Training
In order to explore the impact of time effect caused by different training intervals in concurrent mus-cle strength and cardiorespiratory endurance training on improving cardiorespiratory endurance and lower limb muscle strength in female college students,66 ordinary female college students were selected and randomly divid-ed into group S,group E,group CT-8h and group CT-24h.The subjects underwent exercise intervention for 12 weeks,twice a week.The subjects'cardiorespiratory endurance,lower limb muscle strength and lower limb mus-cle iEMG values were tested before training,and at the 6th and 12th week after the training.The results show in terms of maximum oxygen uptake(VO2max),after exercise intervention,there were significant differences in the VO2max value of group CT-24h,group CT-8h and group E(P<0.05),and the VO2max value of group S was highly significantly different(P<0.01).There was no significant difference in the VO2max value among sub-jects in group E,group CT-8h and group CT-24h(P>0.05);in terms of squat 1RM value,after exercise inter-vention,there were significant differences in the squat 1RM value of group CT-24 h,group CT-8h and group S(P<0.05),and there was a highly significant difference in the squat 1 RM value of group E(P<0.01);there was no significant difference in the squat 1 RM value in group CT-24h(P>0.05),but there was a highly sig-nificant difference in group CT-8h(P<0.01);in terms of iEMG value of lower limb muscles,after exercise in-tervention,there were highly significant differences in the iEMG values of lower limb muscles in each group(P<0.01);there was no significant difference in the iEMG value of lower limb muscles in group CT-24h(P>0.05),but there was a highly significant difference in group CT-8h(P<0.01).It is concluded that 12 weeks of concurrent training of muscle strength and cardiorespiratory endurance can improve the cardiorespiratory endur-ance and lower limb muscle strength of ordinary female college students;concurrent training with an interval of 24 hours is more effective in improving the cardiorespiratory endurance and lower limb muscle strength of ordina-ry female college students.
concurrent traininginterval timeordinary female college studentsmuscle strengthcardiorespi-ratory endurancesurface electromyography