在年长与年轻的跑步者中,垂直硬和下肢关节间协调
Thiago Ribeiro Teles Santos1, Priscila Albuquerque Araújo2, Liria Akie Okai-Nóbrega2
1Faculty of Physical Education and Physical Therapy, Universidade Federal de Uberlândia (UFU), MG, Brazil.
Journal of biomechanics
|July 8, 2023
概括
与年轻的跑步者相比,老年跑步者在早期的姿势中表现出更大的垂直刚性和明显的关节协调模式. 运行力学中的这些适应可能反映了与年龄相关的运动策略的变化.
科学领域:
- 生物力学 生物力学
- 老年学是一门学科.
- 运动科学 运动科学 运动科学
背景情况:
- 在老年人中,跑步参与度在增加.
- 老龄化可能会影响跑步的生物力学,包括下肢协调和硬.
- 了解这些变化对于预防伤害和优化老年跑步者的表现至关重要.
研究的目的:
- 为了比较年轻跑者 (YR) 和年长跑者 (OR) 之间的垂直刚度 (Kvert).
- 为了分析YR和OR之间的斜面平面中下肢关节间的协调.
- 调查年龄对以自选和固定速度跑步模式的影响.
主要方法:
- 与15名YR男性和15名OR男性进行横截面研究.
- 在跑步机上运行时,骨盆和下肢的运动分析.
- 使用矢量编码计算垂直刚度,关节,膝关节和关节合角度 (CA) 和变化率 (CAV).
- 使用曼-惠特尼U,沃森U^2和统计参数映射进行统计比较.
主要成果:
- 较年长的跑步者在两种速度上表现出明显更大的垂直刚度 (Kvert) 比较年轻的跑步者.
- 在早期姿势中,观察到部脚合角度 (CA) 的显著差异,OR显示在相位,远距离主导,YR显示反相位,近距离主导.
- 膝关节CA在自选速度上有所不同,OR表现为相位,近位主导,YR表现为反相位,近位主导.
- 两组之间没有发现合角度变化 (CAV) 的显著差异.
结论:
- 较年长的跑步者与年轻的跑步者相比,采取了更为硬的跑步模式.
- 明显的关节间协调策略,特别是在关节和膝关节,标志着老年跑步者的步态.
- 这些发现突出了与年龄相关的运行生物力学适应,影响立场阶段的硬性和协调.
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