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肌肉耐力和肌伸展能力对关节硬性耐力的影响
Soushi Mino1, Takahiro Kosaka1, Keitaro Kubo1
1Department of Life Science, The University of Tokyo, Meguro, Tokyo, Japan.
Sports biomechanics
|November 3, 2023
概括
保持关节硬对于运动员来说至关重要,但其耐力决定因素是未知的. 这项研究发现,肌肉耐力和肌伸展性都没有显著影响男性运动员的关节性耐力.
科学领域:
- 生物力学 生物力学
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
背景情况:
- 关节硬是运动表现的关键因素,特别是在长距离跑步等耐力比赛中.
- 持续性关节硬或关节硬耐久性的潜在生理决定因素仍然不太清楚.
- 了解这些因素对于优化运动员训练策略和预防运动员受伤至关重要.
研究的目的:
- 为了研究肌肉耐力和关节性耐力之间的关系.
- 为了检查肌伸展性和关节硬性耐力之间的关系.
- 阐明在疲劳性炼期间维持关节硬的因素.
主要方法:
- 13名男性参与者接受了令人疲劳的跳跃任务 (50次重复的5组).
- 在疲劳任务之前和之后,使用跳协议测量了脚关节硬度.
- 肌肉耐力通过一次重复的最大重复率 (1RM) 的30%的足部屈曲的最大重复率来评估.
- 阿基里斯肌的肌伸展性在斜坡 (低张力率) 和弹道 (高张力率) 收缩期间都被测量.
主要成果:
- 在疲劳后观察到脚关节硬度显著下降7.5% (p=0.033).
- 没有发现肌肉耐力 (1RM重复测量) 和关节度变化 (r=0.283,p=0.348) 之间的显著相关性.
- 在弹道 (r=0.326,p=0.277) 和弹道 (r=0.438,p=0.135) 条件下测量的肌伸展性,与关节度变化没有显著关联.
结论:
- 这些发现表明,肌肉耐力和肌伸展性都不是测试人群中关节性耐力的重要预测因素.
- 这表明其他生理或生物力学因素可能在维持疲劳下关节硬方面发挥更为主导作用.
- 需要进一步的研究来确定关节性耐力的主要决定因素,以改善运动表现和伤害管理.
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