降落指令对阿基里斯肌负荷的影响:强调部曲作为最佳策略
Yuta Koshino1, Mina Samukawa1, Tomoya Ishida1
1Faculty of Health Sciences, Hokkaido University, Sapporo, Japan.
概括
在垂直跳跃中增加部曲,显著降低了阿基里斯肌 (AT) 的力量,有助于AT肌病的预防和康复. 其他指令,如后部压力中心 (COP) 转移,可能会增加受伤风险.
科学领域:
- 生物力学
- 运动医学
- 整形医学
背景情况:
- 控制阿基里斯肌负荷对于预防和康复阿基里斯肌病至关重要.
- 口头指令对着陆机械和AT载荷的影响尚不清楚.
研究的目的:
- 在垂直跳跃 (DVJ) 过程中确定有效的口头指令来减少AT负载.
主要方法:
- 23名健康参与者在五个条件下进行DVJ:自然,后部压力中心 (COP),部曲,膝盖曲和安静降落.
- 三维运动分析捕获了峰值AT力,负载率,关节角度,地面反应力 (GRF) 和COP位置.
主要成果:
- 与自然降落相比,部曲和后部COP指令显著降低了峰值AT力.
- 部曲导致AT力和负载率最低,而后部COP增加了负载率和GRF.
- 增加部曲,膝盖曲和安静的降落策略改变了关节动力学和GRF.
结论:
- 降落时增加部曲是减少AT力最有效的策略.
- 这一策略可能有助于预防和康复阿基里斯肌病.
- 后面的COP转移,虽然减少了峰值AT力,但由于更高的负载率和GRF,可能会增加受伤风险.
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