经验丰富的青少年竞技舞者是否会在疲劳后改变着陆动力学和动力学,以进行分裂跳跃或中心跳跃?
Zoie R Mink1, Amanda Esquivel1
1Department of Mechanical Engineering, College of Engineering and Computer Science, University of Michigan-Dearborn, Dearborn, MI, USA.
Journal of applied biomechanics
|September 30, 2024
概括
跳舞者的疲劳会增加跳跃期间的脚变动和外部旋转. 这种运动变化可能会增加舞者在艰苦活动后脚部受伤的风险.
科学领域:
- 运动医学 运动医学
- 舞蹈科学 舞蹈科学 舞蹈科学
- 生物力学 生物力学
背景情况:
- 舞者经常经历下肢伤害,特别是在脚和脚.
- 技术错误和疲劳被确定为舞者受伤的关键风险因素.
研究的目的:
- 分析和比较着陆动力学和动力学在普通舞蹈跳跃之前和之后诱导疲劳.
- 为了研究疲劳对舞者着陆机制的生物力学影响.
主要方法:
- 十名青少年高级舞者表演了三次分裂跳跃和三次中心跳跃.
- 在疲劳后的跳跃分析之前,一个涉及静止自行车的疲劳方案.
- 现场运动捕捉技术记录了着陆的动力学和动力学数据.
主要成果:
- 在疲劳后的中心跳跃中观察到脚变动和外部旋转角度的显著增加 (P = .020).
- 在疲劳后的中心跳跃中记录了脚变动和膝盖加动时刻的显著增加 (P = .020和P = .036).
结论:
- 疲劳显著改变了青少年舞者的着陆动力学.
- 这些动力学变化,特别是脚变动和旋转的增加,可能会增加舞者对脚伤害的易感性.
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