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首页> 外文期刊>International journal of sports medicine >IGF-I and IGFBP-3 during Continuous and Interval Exercise.
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IGF-I and IGFBP-3 during Continuous and Interval Exercise.

机译：连续和间歇运动期间的IGF-I和IGFBP-3。

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摘要

The purpose of this research was to compare changes in circulating levels of total IGF-I and IGFBP-3 during continuous, moderate-intensity exercise (CE) and high-intensity interval exercise (IE) of equal duration. Ten healthy males completed 2 exercise sessions and a resting control session (R) in random order. The CE was 20 minutes of cycling at 60 - 65 % of V.O (2max). During IE, subjects cycled at 80 - 85 % of V.O (2max) for 1 minute followed by 40 seconds of active recovery, with the cycle repeated for a total of 20 minutes. In each session blood samples were drawn at - 10, 0, 5, 10, 20 and 30 minutes. Both IGF-I and IGFBP-3 increased during exercise (p < 0.05) and repeated measures ANOVA revealed a significant effect for session (IE, CE > R, p < 0.05). Area under the curve (AUC) analyses showed no difference in IGF-I between sessions, however, the IGFBP-3 AUC was significantly greater during IE than R (p < 0.05). These results suggest interval and continuous exercise will result in similar changesin circulating IGF-I and IGFBP-3. This could be beneficial to individuals who can exercise longer and at a higher intensity in intervals than would be possible using a continuous protocol.
机译：这项研究的目的是比较持续时间相等的持续，中等强度运动（CE）和高强度间歇运动（IE）期间总IGF-1和IGFBP-3循环水平的变化。十名健康男性按随机顺序完成了2次运动和一次休息控制（R）。 CE为在V.O的60-65％（2max）下循环20分钟。在IE期间，受试者在80％至85％的V.O（最大2％）下循环1分钟，然后主动恢复40秒，整个循环重复20分钟。在每个阶段中，在-10、0、5、10、20和30分钟抽取血样。在运动期间，IGF-I和IGFBP-3均增加（p <0.05），重复测量ANOVA显示该疗程有明显效果（IE，CE> R，p <0.05）。曲线下面积（AUC）分析显示，各疗程之间的IGF-I没有差异，但是，IE期间IGFBP-3 AUC显着大于R（p <0.05）。这些结果表明，间歇和连续运动将导致循环的IGF-1和IGFBP-3发生类似变化。与使用连续方案相比，这可以使间隔时间更长，强度更高的个体受益。

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