在前交叉带重建后,膝盖延伸器的扭矩-速度关系
Xavier D Thompson1, Amelia S Bruce Leicht2, Haleigh M Hopper3
1University of Virginia, Department of Kinesiology, Charlottesville, VA, United States of America.
Clinical biomechanics (Bristol, Avon)
|August 2, 2023
概括
四肢肌肉功能,通过扭矩-速度关系来衡量,在前十字带重建后发生变化. 康复应该针对这些变化,以获得更好的结果.
科学领域:
- 生物力学 生物力学
- 肌肉骨康复 肌肉骨康复
- 运动医学 运动医学
背景情况:
- 扭矩-扭矩速度关系反映了肌肉功能,收缩速度和扭矩之间的关系是反向的.
- 前十字带重建 (ACLR) 可以影响四头肌的功能.
研究的目的:
- 为了描述ACLR之后四头肌的扭矩-速度关系.
- 将ACLR四肢与相反和健康的四肢进行比较.
主要方法:
- 681名参与者进行了90°/s和180°/s的异动性膝盖延伸 (493名ACLR,188名健康).
- 单向ANOVA和对对 t 测试分析了按肢体类型和时间的扭矩-转速关系.
主要成果:
- 手术肢体的扭矩-速度关系显著较低 (0.26Nm/kg),而不是相反的肢体 (0.55Nm/kg).
- 健康的四肢表现出类似的双边扭矩-转速关系.
- 受影响的肢体的扭矩-速度关系随着时间的推移而得到改善,而对侧肢的扭矩-速度关系保持稳定.
结论:
- 与健康和逆侧四肢相比,四肢扭矩-扭矩速度关系在ACLR后发生了变化.
- 这些变化的关系表明了评估和康复策略的潜在目标.
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