被动肩部职业外骨架减少了在重复的手臂运动中肩部肌肉的联合激活
Lorenzo Grazi1,2, Emilio Trigili3,4, Michele Fiore3
1The BioRobotics Institute, Scuola Superiore Sant'Anna, 56025, Pontedera, Pisa, Italy. lorenzo.grazi@santannapisa.it.
Scientific reports
|November 13, 2024
概括
被动上肢职业外骨架 (OE) 在重复的手臂运动中减少肩膀肌肉的联合激活. 来自OEs的抗重力支持增加线性降低了同活化水平,可能减轻与工作相关的肌肉骨疾病.
科学领域:
- 生物力学 生物力学
- 人体工程学就是人体工程学.
- 职业健康 职业健康 职业健康
背景情况:
- 肌肉协作激活对于运动至关重要,但过度水平可能会导致工业工人肌肉骨障碍 (MSD).
- 上肢职业外骨架 (OE) 用于减轻MSDs,先前的研究重点是静态或上空任务.
- 在重复的手臂运动中OEs对肌肉协作激活的影响仍未得到充分研究.
研究的目的:
- 系统地评估被动外骨的抗重力支如何影响在重复的手臂运动中肩膀肌肉的协同激活.
- 量化肌肉协作激活的减少与不同程度的OE协助.
主要方法:
- 一个被动的上肢职业外骨架 (OE) 被用于提供不同程度的反重力支持.
- 在不同的支条件下,在重复的手臂运动中测量了肩膀肌肉的协作激活.
- 分析的重点是运动周期内的峰值协作激活,平均协作激活和协作激活的持续时间.
主要成果:
- 峰值和平均肩部肌肉联合激活水平随着OE反重力支持的增加,线性下降.
- 同活化水平降低了约51% (峰值) 和54% (平均值),随着OE支持的增加.
- 运动周期中表现出高峰同激活的百分比没有受到OE的辅助水平的显著影响.
结论:
- 这项研究提供了第一个证据,即被动上肢OE可以有效地减少在重复的手臂运动期间的肩膀肌肉协作激活.
- 这些发现表明了评估OE在预防与工作相关的肌肉骨疾病方面的有效性的一种新方法.
- 采用可调节的抗重力支来实现OE可能是减少工业工人身体压力的可行策略.
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