Reilly T, Down A
Centre for Sport and Exercise Science School of Human Sciences, Liverpool John Moores University, England.
J Sports Med Phys Fitness. 1992 Dec;32(4):343-7.
Previous work has demonstrated that exercise performance varies with time of day. The aim of this study was to investigate the influence of time of day on measures of anaerobic power and anaerobic capacity. Twelve male subjects, aged 18-22 years, performed a stair run test, a standing broad jump and the Wingate Anaerobic Test on twelve separate occasions. These were at 02:00, 06:00, 10:00, 14:00, 18:00 and 22:00 hours, duplicate measurements being obtained at each time point. Subjects' diet and activity prior to exercise and the laboratory temperature were controlled. Pre-exercise rectal temperature was measured on each occasion. The rectal temperature data conformed to a cosine function: its peak occurred at 18:11 hours and the peak to trough variation was 0.76 degrees C (p < 0.001). There was a rhythm in performance on the stair run and the broad jump tests, in phase with the curve in rectal temperature. Results for peak power and mean power production on the Wingate test did not display a significant circadian rhythm. The stair run and broad jump tests seem to be more sensitive to circadian rhythmicity than does the Wingate Anaerobic Test.
先前的研究表明，运动表现会随一天中的时间而变化。本研究的目的是调查一天中的时间对无氧功率和无氧能力测量指标的影响。12名年龄在18至22岁之间的男性受试者，在12个不同的时间段进行了爬楼梯测试、立定跳远和温盖特无氧测试。这些时间段分别是凌晨2点、6点、10点、14点、18点和22点，每个时间点都进行了重复测量。控制了受试者运动前的饮食和活动以及实验室温度。每次都测量了运动前的直肠温度。直肠温度数据符合余弦函数：其峰值出现在18:11，峰谷变化为0.76摄氏度（p < 0.001）。爬楼梯和立定跳远测试的表现存在节律，与直肠温度曲线同步。温盖特测试中峰值功率和平均功率产生的结果未显示出明显的昼夜节律。爬楼梯和立定跳远测试似乎比温盖特无氧测试对昼夜节律更敏感。
