关注的外部焦点降低了在降落着陆期间的软骨负荷
Lukáš Slovák1, Egor Panfilov2, David Zahradník1
1Human Motion Diagnostic Centre, University of Ostrava, Ostrava, Czech Republic.
Scandinavian journal of medicine & science in sports
|August 31, 2024
概括
登陆期间的外部焦点指令降低了软骨负荷,并急性改变了女性运动员的软骨T2放松时间和体积. 这表明外部关注可能有助于管理软骨损伤.
科学领域:
- 生物力学 生物力学
- 运动医学 运动医学
- 肌肉骨成像系统的成像
背景情况:
- 了解着陆期间急性软骨变化对于预防伤害至关重要.
- 注意力集中是影响运动控制和联合负荷的关键因素在物理任务.
研究的目的:
- 为了研究外侧焦点 (EF),内侧焦点 (IF) 和控制 (CON) 对骨软骨T2放松时间和体积变化在跳跃着陆过程中的影响,注意指令.
- 评估注意力聚焦对生物力学参数的影响,如峰值垂直地面反应力.
主要方法:
- 十名健康的女运动员在三天内从50厘米的盒子中进行了落地,每天都被分配不同的注意力集中条件 (EF,IF,CON).
- 1.5 T的磁共振成像 (MRI) 用于测量骨软骨T2映射和降落前后的体积.
- 在着陆期间测量了垂直地面反应力的峰值.
主要成果:
- 外侧焦点 (EF) 与IF和CON相比,导致侧面承载性软骨T2松时间和体积的急性变化较小.
- 在T2和软骨体积的变化在横侧骨软骨中比骨软骨更为明显,无论注意力集中在哪里.
- 在EF条件下,峰值垂直地面反应力在EF条件下最低.
结论:
- 外部关注焦点可能会减轻女性运动员在重复的跳跃着陆期间的急性软骨负荷和相关变化.
- 这些发现表明,外部关注策略可能有利于在涉及着陆机械的运动中管理和预防软骨损伤.
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