使用四维计算机断层扫描来探索无症状男性肩部动态的与年龄相关的差异
James C Hunter1,2, Ting-Yim Lee3,4, George S Athwal2,4
1Biomedical Engineering, Western University, London, Ontario, Canada.
JSES international
|January 16, 2026
概括
与年轻人相比,老年人表现出明显的肩膀关节运动和休息位置. 这些与年龄相关的肩部动力学差异可能会影响受伤风险和疾病进展.
科学领域:
- 整形外科和体育医学
- 生物力学 生物力学
- 老年学是一门学科.
背景情况:
- 与年龄相关的肩部运动差异对于理解和管理肩部损伤至关重要.
- 以前关于与年龄相关的肩部运动的研究仅限于静态的单平面分析.
- 肩膀的复杂,多关节的运动 (骨和胸) 需要动态的,多平面的调查.
研究的目的:
- 量化运动期间的角关节和甲胸部关节动力学的与年龄相关的差异.
- 为了评估与年龄相关的变化中性定位的肩和手臂.
- 为了解决与年龄相关的肩部疾病背后的生物力学因素提供见解.
主要方法:
- 31名男性参与者被分为两个年龄队列 (<45岁和≥45岁).
- 四维计算机断层扫描 (4D CT) 用于在前方升高和内部旋转期间动态跟踪骨运动.
- 计算了六个自由度的动力学,以及静态中性关节定位.
主要成果:
- 与年轻人相比,老年人在运动过程中显著减少了相对部头部翻译.
- 在前方升高过程中,在队列之间观察到脚位置 (前部转移,中部旋转) 的显著差异.
- 年龄较大的个体表现出改变的中性护甲 (上部翻译,横向旋转,后部倾斜) 和部 (前部位置) 调整.
结论:
- 这项研究发现了与年龄相关的肩膀动力学和中性关节定位的显著差异.
- 这些发现有助于更好地了解与年龄相关的肩部脱,疾病和运动范围 (ROM) 的变化.
- 结果强调了在与年龄相关的肩膀评估中考虑动态,多关节运动的重要性.
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