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首页> 外文期刊>International Journal of Industrial Ergonomics >Differences in lower extremity muscular responses between successful and failed balance recovery after slips
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Differences in lower extremity muscular responses between successful and failed balance recovery after slips

机译：滑倒后成功和失败的平衡恢复之间下肢肌肉反应的差异

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The main purpose of this study was to examine the differences in lower extremity muscular responses between successful and failed balance recovery after slips, and across different muscle groups. Twenty-five young healthy participants were recruited who were instructed to walk on a linear walkway, and slips were induced unexpectedly during walking. Four lower extremity muscle groups in both legs were examined here, including the tibialis anterior, medial gastrocnemius, rectus femoris, and medial hamstring. Lower extremity muscular responses were quantified by muscular activation latency, muscular peak amplitude, time-to-peak, and co-contraction index. The results showed that successful balance recovery was associated with smaller muscular peak amplitude and smaller time-to-peak in the rectus femoris of the perturbed leg compared to failed balance recovery. In addition, it was also found that the muscular activation latency in the medial hamstring of the perturbed leg was significantly smaller than those in the tibialis anterior, rectus femoris, and medial hamstring of the unperturbed leg. These findings can aid in better understanding fall mechanisms due to slips and be used to establish guidelines for developing fall prevention strategies in the workplace. Relevance to industry: Slips-induced falls are a major cause of injuries and fatalities in the workplace. This study provides better knowledge of the roles of different lower extremity muscle groups in balance recovery after slips. Such knowledge may be useful for establishing guidelines for developing fall prevention strategies in the workplace.
机译：这项研究的主要目的是检查滑倒后以及不同肌肉群之间成功和失败的平衡恢复之间下肢肌肉反应的差异。招募了25名年轻健康参与者，他们被指示在线性人行道上行走，并且在行走过程中意外滑倒。在这里检查了双腿的四个下肢肌肉群，包括胫骨前，腓肠肌内侧，股直肌和腿筋内侧。下肢肌肉反应通过肌肉激活潜伏期，肌肉峰幅度，峰时间和收缩指数来量化。结果表明，与失败的平衡恢复相比，成功的平衡恢复与较小腿部直肌的肌肉峰值幅度和较小的峰值时间相关。此外，还发现，受扰腿内侧肌的肌肉激活潜伏期明显小于未受扰腿胫骨前，股直肌和and肌的肌肉激活潜伏期。这些发现可以帮助更好地理解由于滑倒而引起的跌倒机制，并可以用来为制定工作场所的跌倒预防策略建立指导方针。与行业的关系：滑倒引起的跌落是工作场所受伤和死亡的主要原因。这项研究提供了有关下肢不同肌肉群在滑倒后平衡恢复中的作用的更好的知识。这些知识对于建立工作场所预防跌倒策略的指导方针可能有用。

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