衰老对部绑架肌肉的影响 扭矩,功率,速度和与下肢身体功能相关的关联
Marcel Bahia Lanza1, Carolina da Cruz de Souza, Vicki L Gray
1Department of Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, Maryland.
Journal of geriatric physical therapy (2001)
|January 8, 2025
概括
年长的成年人表现出关节绑架器的强度和功率降低,影响了跌倒预防. 这些下降与老年人的功能表现相关,与年轻人不同.
科学领域:
- 老年学是一门学科.
- 生物力学 生物力学
- 肌肉生理学 肌肉生理学
背景情况:
- 衰老导致肌肉强度,功率和质量下降,增加老年人的跌倒风险.
- 部绑架肌肉功能对于平衡和防止跌倒至关重要,特别是在步行等动态运动期间.
- 衰老对关节绑架肌肉功能的影响仍未得到充分研究.
研究的目的:
- 为了在年轻人和年长的成年人之间比较部绑架器的最大扭矩,次最大功率和速度.
- 用不同年龄组的临床评估来评估部绑架器的强度和功率.
- 确定临床评估与年轻和老年人部引肌功能之间的关系.
主要方法:
- 参与者包括年轻人 (n=20,26.5±3.9岁) 和老年人 (n=20,71.9±5.3岁).
- 评估的关节摘取估计1次重复最大 (e1RM) 和次最大测试 (40%,60%,70% e1RM).
- 临床评估包括爬楼梯功率测试和30秒椅站测试.
主要成果:
- 与年轻人相比,老年人表现出明显较低的部绑架扭矩,功率和速度.
- 年长的成年人在临床力量和力量评估中得分低于年轻的成年人.
- 在老年人中,临床评估和关节绑架器功能之间发现了强烈的相关性,但在年轻人中没有.
结论:
- 衰老显著降低了部绑架器的扭矩,功率和速度,以及功能测试中的表现较差.
- 在老年人中,关节绑架肌功能下降与功能性能的降低有关.
- 医疗保健提供者应该认识到快速力量生成对老年人的下肢功能和跌倒预防的重要性.
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