追踪半马拉松后同心和偏心四头肌和腿筋扭矩和功率的时间依赖变化
Wenjin Wang1, Shulin Xu1, Marvin Zedler1,2
1Institute of Biomechanics and Orthopedics, German Sport University Cologne, Cologne, Germany.
Journal of sports sciences
|April 5, 2025
概括
半程马拉松后,肌肉性能,包括四头骨和腿筋的峰值扭矩和平均功率,显著下降. 大多数功能在2天内恢复到基线,有些显示超补偿.
科学领域:
- 运动医学 运动医学
- 运动生理学 运动生理学
- 生物力学 生物力学
背景情况:
- 半程马拉松跑步参与率急剧上升,但比赛后的肌肉恢复时间表尚不清楚.
- 了解肌肉性能恢复对于休跑者来说至关重要,以防止受伤和优化训练.
研究的目的:
- 为了研究半程马拉松后肌肉性能恢复的时间过程.
- 评估四头骨和腿筋峰值扭矩和平均功率的变化.
- 为了评估半程马拉松后腿筋与四头肌的扭矩和功率比.
主要方法:
- 研究了38名休跑步运动员.
- 异动力学测量测量了四个时间点的峰值扭矩和平均功率:赛前,赛后立即,赛后1天和赛后2天.
- 测量包括同心和偏心四头四和腿筋性能,以及扭矩/功率比.
主要成果:
- 赛后观察到同心和偏心四头肌和腿筋峰值扭矩和平均功率的显著减少.
- 奇特的腿筋与同心四头骨的扭矩和功率比率也显著下降.
- 大多数参数在1天内恢复,除了集中四头四肢的表现,这需要2天. 到了第二天,一些措施出现了超额补偿.
结论:
- 休跑步者在半程马拉松之后会经历相当大的肌肉性能缺陷.
- 大多数肌肉功能在2天内完全恢复,有些人表现出超级补偿.
- 建议半程马拉松后2天避免高强度运动,以减少受伤风险.
相关概念视频
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Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart rate...