The distribution of rest periods affects performance and adaptations of energy metabolism induced by high-intensity training in human muscle.
The distribution of rest periods affects performance and adaptations of energy metabolism induced by high-intensity training in human muscle.
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休息时间的分布会影响人体肌肉高强度训练引起的能量代谢的表现和适应。
DOI：
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
R. Cussó
中科院分区：
文献类型：
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作者：
J. Parra;J. Cadefau;G. Rodas;N. Amigó;R. Cussó
本文分析了休息时间的分配对间歇短跑训练效果的影响。10名男性受试者，随机分为两组，进行不同的增量短跑训练协议，其中肌肉负荷是相同的（14届），但休息时间的分布是不同的。“短期计划”组（SP）每天训练2周，而“长期计划”组（LP）训练6周，每次训练后休息2天。志愿者在训练前后在自行车测力计上进行了30秒的超大自行车测试。在每次测试之前和之后从股外侧肌获得肌肉活检以检查代谢物和酶活性。两种训练方案均导致与糖酵解（磷酸果糖激酶- SP 107%，LP 68%和醛缩酶- SP 46%，LP 28%）和有氧代谢（柠檬酸合酶- SP 38%，LP 28.4%和3-羟酰基-CoA脱氢酶- SP 60%，LP 38.7%）相关的酶活性显著增加（均显著，P < 0.05）。而肌酸激酶（44%）、丙酮酸激酶（35%）和乳酸脱氢酶（45%）的活性显著升高训练结束时，SP每克肌肉无氧ATP消耗量显著降低（P < 0.05）训练后测试中，运动员的运动成绩与对照组相比有显著性差异（P <0.05），糖原降解率也有显著性差异（P < 0.05）。LP组无氧ATP消耗、糖酵解和糖原分解率均无显著增加，但运动成绩有显著提高（P < 0.05）。这些结果表明，14次高强度自行车训练提高了无氧代谢和有氧代谢的酶活性。这些变化受休息时间分布的影响，因此休息时间越短，丙酮酸激酶、肌酸激酶和乳酸脱氢酶的增加越大。然而，在不包括恢复天数的短期训练计划中，表现并没有改善，这表明肌肉纤维遭受疲劳或损伤。
The effect of the distribution of rest periods on the efficacy of interval sprint training is analysed. Ten male subjects, divided at random into two groups, performed distinct incremental sprint training protocols, in which the muscle load was the same (14 sessions), but the distribution of rest periods was varied. The 'short programme' group (SP) trained every day for 2 weeks, while the 'long programme' group (LP) trained over a 6-week period with a 2-day rest period following each training session. The volunteers performed a 30-s supramaximal cycling test on a cycle ergometer before and after training. Muscle biopsies were obtained from the vastus lateralis before and after each test to examine metabolites and enzyme activities. Both training programmes led to a marked increase (all significant, P < 0.05) in enzymatic activities related to glycolysis (phosphofructokinase - SP 107%, LP 68% and aldolase - SP 46%, LP 28%) and aerobic metabolism (citrate synthase - SP 38%, LP 28.4% and 3-hydroxyacyl-CoA dehydrogenase - SP 60%, LP 38.7%). However, the activity of creatine kinase (44%), pyruvate kinase (35%) and lactate dehydrogenase (45%) rose significantly (P < 0.05) only in SP. At the end of the training programme, SP had suffered a significant decrease in anaerobic ATP consumption per gram muscle (P < 0.05) and glycogen degradation (P < 0.05) during the post-training test, and failed to improve performance. In contrast, LP showed a marked improvement in performance (P < 0.05) although without a significant increase in anaerobic ATP consumption, glycolysis or glycogenolysis rate. These results indicate that high-intensity cycling training in 14 sessions improves enzyme activities of anaerobic and aerobic metabolism. These changes are affected by the distribution of rest periods, hence shorter rest periods produce larger increase in pyruvate kinase, creatine kinase and lactate dehydrogenase. However, performance did not improve in a short training programme that did not include days for recovery, which suggests that muscle fibres suffer fatigue or injury.
影响因子：
3.3
作者：
DUDLEY, GA;ABRAHAM, WM;TERJUNG, RL
通讯作者：
TERJUNG, RL