增加感知相关感官信息的能力,最大限度地减少了起重时的腰部暴露
Daniel P Armstrong1, Brian C Horslen1, Steven L Fischer1
1Department of Kinesiology and Health Sciences, Faculty of Health, University of Waterloo, Waterloo, ON, Canada.
Motor control
|November 3, 2023
概括
具有较好的腰部自感或身体位置和力感的个体,在举重时体验的脊柱负荷较小. 改善这种感官反可能会减少工作场所的伤害.
科学领域:
- 生物力学 生物力学
- 发动机控制器的控制器
- 职业健康 职业健康 职业健康
背景情况:
- 在起重过程中最大限度地减少腰部负荷方面存在个体差异.
- 这些差异的根本原因,特别是感官感知,仍然不清楚.
- 最佳反控制理论表明,运动目标受到感官反的影响.
研究的目的:
- 调查在起重过程中腰部和腰部负荷峰值之间的自感能力 (力和姿势感) 之间的关联.
- 为了确定感官感知差异是否解释脊柱负荷的个体间差异.
- 测试最佳反控制理论在解释起重生物力学方面的相关性.
主要方法:
- 72名参与者进行了通用 (杆) 和职业特定 (背板) 的提升.
- 记录了全身动力学和地面反应力.
- 计算和分析了与自感匹配能力相关的峰值腰部压缩和剪切力.
主要成果:
- 更好的姿势匹配和力匹配能力在更高的力度与较低的平均值和峰值低背负荷的变化相关.
- 这些关联在杆和背板升降机中都被观察到.
- 效应大小小 (R2 ≤ .17),表明其他因素也影响脊柱负荷.
结论:
- 低背部的自身感知能力与起重时脊柱负荷的减少有关,支持最佳反控制理论.
- 加强自身感知训练可能是工作场所伤害预防计划的可行策略.
- 使用最佳反控制框架的进一步研究可以阐明提升负载的个体间差异.
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