关节旋转在横向跌倒期间对三叉关节力和软组织厚度的影响
Jongwon Choi1, Junwoo Park1, Seyoung Lee1
1Injury Prevention and Biomechanics Laboratory, Department of Physical Therapy, Yonsei University, Wonju, South Korea.
Medical engineering & physics
|December 6, 2025
概括
部在摔倒期间的外部旋转通过减少骨盆硬度来减少对股骨的冲击力,而不是通过增加软组织保护来减少. 这一发现对于理解关节骨折生物力学至关重要.
科学领域:
- 生物力学 生物力学
- 整形外科 整形外科 整形外科
- 老年学是一门学科.
背景情况:
- 关节骨折是一个主要的健康问题,特别是在老年人中,通常是跌倒造成的.
- 了解部撞击的生物力学对于开发有效的跌倒预防和治疗策略至关重要.
研究的目的:
- 为了研究部旋转对三叉骨软组织厚度 (TSTT) 的影响,以及侧向跌倒时对近接大腿骨 (F_trochanteric) 产生的力大小.
- 为了确定部旋转是否会影响TSTT的力减弱.
主要方法:
- 20名参与者接受了释实验,模拟横向跌倒,侧向跌倒.
- 动力学和动力学记录在中性,15°内部和15°外部旋转的部.
- 结果变量包括骨盆硬度 (k),F_trochanteric,TSTT和力减弱 (F_attenuation).
主要成果:
- 骨盆硬度 (k) 和F_trochanteric与部旋转有显著的相关性.
- 与中性和内部旋转相比,外部旋转导致14-15%较低的k和F_trochanteric.
- 无论是TSTT还是F_attenuation都没有显示出与部旋转有显著的关联.
结论:
- 在撞击时部外侧旋转会减少向近接大腿骨传递的力.
- 这种减少主要是由于骨盆硬度降低,而不是由于三叉骨软组织增加的保护力减弱.
- 这些发现增强了对部冲击力分布和跌倒生物力学的理解.
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