慢性脚不稳定的舞者在单脚跳跃着陆时有不同的区域脚下力量
Julia Martins Portugal1, Isabella Martins Rodrigues1, Karine Jacon Sarro1
1Universidade Estadual de Campinas, Campinas, Brazil.
概括
慢性脚不稳定 (CAI) 的舞者表现出改变的跳跃着陆. 动态脚部压力系统检测到CAI舞者较高的后脚侧面力,有助于早期识别危险的着陆模式.
科学领域:
- 生物力学 生物力学
- 运动医学 运动医学
- 舞蹈科学 舞蹈科学 舞蹈科学
背景情况:
- 脚扭伤在舞者中很常见,往往导致慢性脚不稳定 (CAI).
- CAI可能会对跳跃着陆机械产生负面影响.
- 早期识别CAI舞者的跳跃降落模式变化至关重要.
研究的目的:
- 为了确定跳跃着陆期间,有或没有CAI的舞者之间的区域脚部力是否不同.
- 调查足部压力分布的实用性,以确定CAI相关的着陆变化.
主要方法:
- 有 (n=12) 和没有 (n=14) CAI的女舞者进行了单腿跳跃.
- 在芭蕾舞鞋和强力板内面部压力内测量了地面反应力.
- 在降落后200毫米内分析了垂直地面反应力峰值和区域峰值足部力量峰值.
主要成果:
- 两组之间没有观察到峰值垂直地面反应力的显著差异.
- 患有CAI的舞者在侧侧后脚区域表现出明显更高的脚底力.
- 横向压力系统成功地区分了两个组之间的着陆模式.
结论:
- 动态脚部压力内可以识别CAI的舞者不同的跳跃着陆特征.
- 在CAI舞者中增加的横向后脚力与已知的反转机制保持一致.
- 这项技术为早期发现危险着陆行为和在康复和预防计划中实时反提供了潜在的潜力.
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