习惯性体力活动对老年和老年男性的力量丧失和疲劳能力的影响
Eric Luneau1, Vianney Rozand1,2, Juan Manuel Murias3
1Université Jean Monnet Saint-Etienne, Lyon 1, Université Savoie Mont-Blanc, Laboratoire Interuniversitaire de Biologie de la Motricité, Saint-Etienne, France.
Scandinavian journal of medicine & science in sports
|December 4, 2025
概括
由于与有氧能力相关的外围因素,非常老的男性表现出增加的疲劳性. 在这个群体中,较高的体力活动可能会提高有氧能力并减少疲劳.
科学领域:
- 神经肌肉生理学 神经肌肉生理学
- 老年学是一门学科.
- 运动科学运动科学
背景情况:
- 神经肌肉和心血管功能与年龄相关的下降可以增加日常活动中的努力和疲劳.
- 习惯性体力活动 (PA) 可能会减轻这些与年龄相关的变化.
- 了解年龄和PA对疲劳能力的影响对于保持老年人功能独立至关重要.
研究的目的:
- 研究年龄和习惯性体力活动 (PA) 对年轻,老年和非常老年男性神经肌肉疲劳性的影响.
- 在不同年龄组中区分疲劳机制 (中心与外围).
- 探索老年男性有氧能力 (V·O2max) 和疲劳能力之间的关系.
主要方法:
- 招募了三组男性:年轻人 (YM),老年人 (OM) 和非常老年人 (VOM).
- 在疲劳的膝盖伸展任务中评估最大自愿收缩 (MVC),自愿激活 (VA) 和抽幅度 (Tw).
- 通过单独一天的最大坡道测试测量最大氧气消耗量 (V ̇O2max).
主要成果:
- 与年轻人 (YM) 和老人 (OM) 相比,非常老的男性 (VOM) 在给定的次最大工作负载下表现出较低的最大膝盖伸展力 (MVC) 和较低的抽幅度 (Tw).
- 在任务失败时,年轻男性 (YM) 显示出比非常老男性 (VOM) 更大的MVC损失.
- 身体活动 (PA) 水平与V̇O2max相关,但没有直接影响疲劳;然而,在VOM中,减少疲劳与更高的PA和有氧能力有关.
结论:
- 非常老男性 (VOM) 的疲劳能力主要受到外围因素的影响,并与他们的有氧能力有关.
- 虽然习惯性体力活动 (PA) 与有氧能力相关,但它对疲劳能力的直接影响在各个年龄段不同.
- 较高的PA水平可能特别有利于非常老的男性 (VOM) 改善有氧能力和减轻疲劳,与年轻或老年男性不同.
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