间隔时间效应对同期训练改善女大学生肌肉力量和心肺耐力的影响研究

Study of the Impact of Interval Time Effect on the Improvement of Muscle Strength and Cardiorespiratory Endurance of Female College Students Through Concurrent Training

目的:探讨同期肌肉力量与心肺耐力训练中不同训练间隔的时间效应对同期训练改善女大学生心肺耐力与下肢肌肉力量的影响。方法:选取66名普通女大学生为研究对象,随机分为S组、E组、CT-8h组、CT-24h组;被试进行12周运动干预,每周2次;于训练前、训练后第6周、第12周检测被试的心肺耐力、下肢肌肉力量以及下肢肌肉iEMG值。结果:(1)最大摄氧量(VO 2max):运动干预后,CT-24h组、CT-8h组、E组的VO 2max值均存在显著性差异(P<0.05);S组的VO 2max值存在极显著性差异(P<0.01);E组、CT-8h组、CT-24h组被试间VO2max值均无显著性差异(P>0.05)。(2)深蹲1RM值:运动干预后,CT-24h组、CT-8h组、S组的深蹲1RM值均存在显著性差异(P<0.05);E组的深蹲1RM值存在极显著性差异(P<0.01);CT-24h组的深蹲1RM值无显著性差异(P>0.05);CT-8h组存在极显著性差异(P<0.01)。(3)下肢肌肉iEMG值:运动干预后,各组的下肢肌肉iEMG值均存在极显著性差异(P<0.01);CT-24h组的下肢肌肉iEMG值无显著性差异(P>0.05),CT-8h组存在极显著性差异(P<0.01)。结论:12周的肌肉力量和心肺耐力同期训练能够提高普通女大学生心肺耐力、下肢肌肉力量;间隔24小时同期训练对于提高普通女大学生心肺耐力、下肢肌肉力量效果更佳。

In order to explore the impact of time effect caused by different training intervals in concurrent muscle 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 divided 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 muscle 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(VO 2max),after exercise intervention,there were significant differences in the VO 2max value of group CT-24h,group CT-8h and group E(P<0.05),and the VO 2max value of group S was highly significantly different(P<0.01).There was no significant difference in the VO 2max value among subjects in group E,group CT-8h and group CT-24h(P>0.05);in terms of squat 1RM value,after exercise intervention,there were significant differences in the squat 1RM value of group CT-24h,group CT-8h and group S(P<0.05),and there was a highly significant difference in the squat 1RM value of group E(P<0.01);there was no significant difference in the squat 1RM value in group CT-24h(P>0.05),but there was a highly significant difference in group CT-8h(P<0.01);in terms of iEMG value of lower limb muscles,after exercise intervention,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 endurance 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 ordinary female college students.