Inter-Individual Variability in the Adaptive Responses to Endurance and Sprint Interval Training: A Randomized Crossover Study
Inter-Individual Variability in the Adaptive Responses to Endurance and Sprint Interval Training: A Randomized Crossover Study
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DOI：
10.1371/journal.pone.0167790
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发表时间：
2016-12-09
期刊：
影响因子：
3.7
通讯作者：
Gurd, Brendon J.
中科院分区：
文献类型：
--
作者：
Bonafiglia, Jacob T.;Rotundo, Mario P.;Gurd, Brendon J.
本研究探讨了适应性反应耐力（END）和短跑间歇训练（SIT）在一组21娱乐活跃的成年人。所有参与者完成了为期三周（每周四天）的END（30分钟，与65%VO（2）峰值工作率（WR）相似）和SIT（8个，20秒间隔，与170%VO（2）峰值WR相似，间隔10秒主动休息），遵循随机交叉研究设计，训练干预之间有三个月的洗脱期。虽然观察到训练对VO（2）峰值、乳酸阈值和次最大心率（HR）的主要影响，但在对END和SIT的个体反应中观察到相当大的差异。对于任何变量的个体变化，在END和SIT之间均未观察到显著的正相关关系。无反应的判定标准是VO（2）峰值（0.107 L/min）、乳酸阈值（15.7 W）和次最大心率（10.7 bpm）测量的典型误差（TE）的两倍。在END和SIT后，观察到VO（2）峰值、乳酸阈值和次最大HR无反应，然而，END和SIT后的个体反应模式不同。有趣的是，当暴露于END和SIT时，所有人都至少对一个变量做出反应。这些结果表明，个体对运动训练的反应在不同的训练方案下是高度可变的，并且通过将无反应者的训练刺激改变为三周的END或SIT，可以降低对运动训练无反应的发生率。
The current study examined the adaptive response to both endurance (END) and sprint interval training (SIT) in a group of twenty-one recreationally active adults. All participants completed three weeks (four days/week) of both END (30 minutes at similar to 65% VO(2)peak work rate (WR) and SIT (eight, 20-second intervals at similar to 170% VO(2)peak WR separated by 10 seconds of active rest) following a randomized crossover study design with a three-month washout period between training interventions. While a main effect of training was observed for VO(2)peak, lactate threshold, and submaximal heart rate (HR), considerable variability was observed in the individual responses to both END and SIT. No significant positive relationships were observed between END and SIT for individual changes in any variable. Nonresponses were determined using two times the typical error (TE) of measurement for VO(2)peak (0.107 L/min), lactate threshold (15.7 W), and submaximal HR (10.7bpm). Nonresponders in VO(2)peak, lactate threshold, and submaximal HR were observed following both END and SIT, however, the individual patterns of response differed following END and SIT. Interestingly, all individuals responded in at least one variable when exposed to both END and SIT. These results suggest that the individual response to exercise training is highly variable following different training protocols and that the incidence of non-response to exercise training may be reduced by changing the training stimulus for non-responders to three weeks of END or SIT.