Twenty-four-hour cortisol response to multiple daily exercise sessions of moderate and high intensity.
Twenty-four-hour cortisol response to multiple daily exercise sessions of moderate and high intensity.
复制标题
对每日多次中等和高强度运动的二十四小时皮质醇反应。
DOI：
10.1046/j.1365-2281.1999.00157.x
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
A. Viru
中科院分区：
文献类型：
--
作者：
A. Hackney;A. Viru
本研究的目的是表征和描述的皮质醇反应在运动员在24小时内，在不同的日子，涉及多个不同强度的运动会。17名耐力运动员自愿接受三种实验治疗条件：（a）不运动的对照日;（B）两次高强度运动的运动日;（c）两次中等强度运动的运动日。由于白天两种类型的运动的影响（高强度运动比中等强度运动产生更大的皮质醇反应），发现了显着的变化（P < 0.01）。夜间中等强度运动后皮质醇反应显著低于对照组相应时间的皮质醇反应（P < 0.05）。高强度运动后（在选定的时间），皮质醇水平显着低于（P < 0.05）在相应的时间控制条件。此外，在类似的时间点，高强度运动后的某些夜间反应明显低于中等强度运动反应。结果表明，白天多次运动会产生抑制皮质醇水平在晚上，这种影响的大小取决于强度在白天的运动进行。从目前的数据来看，诱导夜间皮质醇水平产生这种效应的生理机制尚不清楚。
The aim of this study was to characterize and describe the cortisol responses in athletes over a 24-h period on different days involving multiple exercise sessions of varied intensity. Seventeen endurance athletes volunteered to undergo three experimental treatment conditions: (a) a control day involving no exercise; (b) an exercise day with two sessions of high-intensity exercise; and (c) an exercise day with two sessions of moderate-intensity exercise. Significant changes (P < 0.01) were found owing to the influence of both types of exercise during the daytime (high-intensity exercise producing a greater cortisol response than moderate intensity). At night after the moderate-intensity exercise (at selected times), cortisol response was significantly less than during the control condition at corresponding times (P < 0.05). After high-intensity exercise (at selected times), cortisol levels were significantly less (P < 0.05) than in the control condition at corresponding times. Additionally, certain night-time responses after the high-intensity exercise were significantly less than the moderate-intensity exercise responses at similar time points. The results indicate that daytime multiple exercise sessions produce suppressed cortisol levels at night, and the magnitude of this effect is dependent upon the intensity at which the daytime exercise is performed. The physiological mechanism inducing this effect upon cortisol levels at night is unclear from the present data.