Research Laboratory Sports Performance Optimization, National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia.
J Strength Cond Res. 2012 Jan;26(1):217-25. doi: 10.1519/JSC.0b013e31821d5e8d.
The aim of this study was to examine the effects of training at the same time of the day on the diurnal variations of anaerobic performances to provide some recommendations to adjust training hours with the time of the day of competitive events. Thirty participants underwent 8 weeks of lower-extremity progressive resistance training performed 3 times per week designed to promote muscular strength and power. These subjects were randomly assigned to a morning training group (MTG, 07:00-08:00 hours, n = 10), an evening training group (ETG, 17:00-18:00 hours, n = 10), and a control group (CG, completed all tests but did not train, n = 10). Performance in the squat jump, the countermovement jump, the Wingate and 1 repetition maximum (1RM) during leg extension, leg curl, and squat tests was recorded just before and 2 weeks after an 8-week course of regular training. For all the subjects, the morning and evening tests were scheduled at the same time of the day as for the morning and evening training sessions. Before training, the results indicated a significant increase in performance from morning to evening tests (ca. 2.84-17.55% for all tests) for all groups. After training, the diurnal variations in anaerobic performances were blunted in the MTG. In fact, there was no significant difference in muscular power or strength between morning and evening tests. However, these intradaily variations in anaerobic performances persisted in the ETG and CG. From a practical point of view, adaptation to strength training is greater at the time of the day at which training was scheduled than at other times.
本研究旨在探讨在相同时间进行训练对无氧性能的日变化的影响，为调整训练时间以适应比赛日的时间提供一些建议。30 名参与者接受了 8 周的下肢渐进式抗阻训练，每周 3 次，旨在促进肌肉力量和力量。这些受试者被随机分配到早晨训练组（MTG，07:00-08:00 小时，n=10）、傍晚训练组（ETG，17:00-18:00 小时，n=10）和对照组（CG，完成所有测试但不训练，n=10）。在进行腿部伸展、腿部卷曲和深蹲测试时，记录深蹲跳、反向跳、Wingate 和 1 次最大重复（1RM）的表现，分别在 8 周常规训练课程之前和之后 2 周进行。对于所有受试者，早晨和晚上的测试都安排在与早晨和晚上训练时间相同的时间进行。在训练之前，结果表明所有组的早晨和晚上测试的表现都有显著提高（约 2.84-17.55%）。训练后，MTG 中无氧性能的日变化变钝。实际上，在早晨和晚上的测试之间，肌肉力量或强度没有显著差异。然而，这些无氧性能的日内变化在 ETG 和 CG 中仍然存在。从实际的角度来看，适应力量训练在安排训练的时间比其他时间更大。
