The effect of exercise duration and mode on the growth hormone responses in young women on oral contraceptives.
The effect of exercise duration and mode on the growth hormone responses in young women on oral contraceptives.
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运动持续时间和方式对服用口服避孕药的年轻女性生长激素反应的影响。
DOI：
10.1007/s00421-003-0863-x
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发表时间：
2003
影响因子：
3
通讯作者：
Kanaley,JillA
中科院分区：
文献类型：
--
作者：
Sauro,LynnM;Kanaley,JillA
以前的研究是矛盾的最小持续时间需要引起生长激素（GH）的反应有氧运动，因此，本项目的目的是研究的影响模式和持续时间运动引起的生长激素反应的年轻女性口服避孕药。9名服用口服避孕药的健康年轻女性在跑步机和自行车测力计上以75%的模式特异性峰值有氧功率（V ~ O2 peak）运动10、15和20 min，在整个5.5 h的研究中，在休息时和每10 min采集一次连续血样。每次运动后休息70分钟。运动结束时，无论运动持续时间或运动方式如何，GH反应均显著（P<0.02）。在跑台上进行10、15和20 min运动时，GH峰值浓度分别为12.2（1.8）、10.2（1.6）和7.6（1.5）ng·ml-1。对于自行车测力计，GH峰值浓度分别为9.3（2.0）、6.3（1.0）和9.8（1.7）ng·ml-1。总积分曲线下面积在每个运动持续时间的周期和跑步机运动之间没有显着差异。服用口服避孕药的年轻女性在跑步机和骑自行车运动期间，中等强度的有氧运动足以在短短10分钟内产生GH反应。总体而言，运动模式不影响运动诱导的GH反应。
Previous research is conflicting concerning the minimum time duration needed to elicit a growth hormone (GH) response to aerobic exercise; thus, the purpose of this project was to examine the effects of mode and duration on exercise-induced GH responses in young women taking oral contraceptives. Nine healthy young females on oral contraceptives exercised at 75% of their mode-specific peak aerobic power (V̇O2peak) on the treadmill and cycle ergometer for 10, 15 and 20 min, with serial blood samples taken at rest and every 10 min throughout the entire 5.5 h of the study. Each exercise bout was followed by 70 min of rest. A significant (P<0.02) GH response was observed at the end of exercise regardless of the duration or mode of exercise. The peak GH concentrations were 12.2 (1.8), 10.2 (1.6), and 7.6 (1.5) ng·ml−1for the 10-, 15-, and 20-min exercise bouts on the treadmill, respectively. For the cycle ergometer, peak GH concentrations were 9.3 (2.0), 6.3 (1.0), and 9.8 (1.7) ng·ml−1, respectively. The total integrated area under the curve was not significantly different between the cycle and treadmill exercise for each exercise duration. Moderate-intensity aerobic exercise is sufficient to produce a GH response in as little as 10 min during both treadmill and cycling exercise in young women taking oral contraceptives. Overall, the mode of exercise does not impact the exercise-induced GH response.