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Updated: May 12, 2025

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Skeletal Muscle Gender Dimorphism from Proteomics
Published on: December 14, 2011
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性和蛋白质补充对蛋白质周转和肌肉功能的影响 在36小时的军事实地演习中,在能量缺陷中
Thomas J O'Leary, Charlotte V Coombs1, Victoria C Edwards2
1Army Health and Performance Research, Army Headquarters, Andover, UNITED KINGDOM.
Medicine and science in sports and exercise
|May 9, 2025
概括
与男性相比,女性在艰苦的军事训练期间表现出优越的全身蛋白质平衡. 蛋白质补充剂可以提高男性在这种苛刻的体力活动期间的蛋白质平衡.
科学领域:
- 运动生理学 运动生理学
- 营养科学 营养科学
- 运动医学 运动医学
背景情况:
- 了解蛋白质代谢的性别差异对于优化营养策略至关重要.
- 军事实地演习会给人带来很大的生理压力,影响蛋白质的循环.
- 蛋白质补充剂在减轻运动诱导的催化作用中的作用需要进一步研究.
研究的目的:
- 为了研究在军事实地演习期间全身蛋白质周转的性别差异.
- 为了确定蛋白质补充剂对男性士兵在艰苦训练期间蛋白质周转率的影响.
主要方法:
- 44名英国陆军学员 (14名女性) 参加了为期36小时的实地演习.
- 参与者被分配到习惯性饮食或习惯性饮食加46.6g/天蛋白质.
- 使用 [15N] - 甘氨酸方法评估全身蛋白质周转率;通过尿液中的3-甲基 (3MH) 与肌素的比率估计肌肉蛋白质的分解.
主要成果:
- 在时间点之间没有观察到全身蛋白质循环,合成,分解或平衡的显著差异.
- 与男性对照组相比,女性的全身蛋白质平衡较高,3MH:肌素比较低.
- 接受蛋白质补充剂的男性在运动期间表现出改善蛋白质平衡的趋势,尽管与对照组相比,这一趋势在统计学上并不显著.
结论:
- 在强烈的军事训练期间,女性比男性保持更有利的全身蛋白质平衡,这可能与能量平衡有关.
- 蛋白质补充剂可能有助于保持全身蛋白质平衡,对于那些经历过艰苦体力劳动的男性来说,这可能有好处.
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