运动员在不同的跳跃方向上出现关节激活缺陷,有关节压力损伤史:一个横截面实验室研究
Amornthep Jankaew1, Yih-Kuen Jan2, Ing-Shiou Hwang1,3
1Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
Sports biomechanics
|July 17, 2023
概括
腿筋受伤的运动员在跳跃时表现出延迟的腿筋激活和减少肌肉招募. 这影响了性能并增加了登陆部队,突出了需要在康复中考虑移动飞机的需要.
科学领域:
- 运动医学 运动医学
- 生物力学 生物力学
- 运动生理学 运动生理学
背景情况:
- 慢性腿筋应变损伤通常影响运动员,可能导致肌肉激活模式的改变.
- 在跳跃等动态任务中了解腿筋肌肉功能对于受伤康复和性能提升至关重要.
研究的目的:
- 为了研究慢性腿筋应变损伤的运动员在垂直和水平跳跃任务期间的腿筋肌肉激活开始时间和招募水平.
- 为了比较受伤和健康运动员之间的这些参数,并检查跳跃方向对腿筋招募的影响.
主要方法:
- 电肌图 (EMG) 用于测量侧侧腿筋 (LH) 和中侧腿筋 (MH) 的激活开始时间和中位频率 (表明招募).
- 参与者在力量平台上以垂直和水平方向进行双腿跳跃,记录了垂直地面反应力和负载率的峰值.
- 这项研究招募了13名患有慢性腿筋损伤的运动员和13名匹配的健康对照.
主要成果:
- 与对照组相比,受伤组的腿筋激活开始时间显著延迟 (p=0.029) 和降落时LH招募率较低 (p=0.018).
- 在受伤的运动员中,这些腿筋激活缺陷与降落力和加载率的增加有关.
- 腿筋肌肉 (LH和MH) 在垂直跳跃中显示出较低的招募能力,而不是在着陆阶段的水平跳跃.
结论:
- 腿筋受伤的运动员在跳跃任务中表现出明显的腿筋激活缺陷,这会对跳跃着陆的表现产生负面影响.
- 跳跃的方向影响腿筋肌肉的招募,这表明运动平面是治疗腿筋损伤的临床康复策略中需要考虑的关键因素.
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