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    • 越过地面障碍物时绊倒风险影响因素分析

    ,, 李竹,黄明亮

    Ergonomics（2023）SCI 2区SCI 3区

    Cited 0|Views3
    Abstract
    目的 探讨地面障碍物深度、高度及行走者步频对越过障碍时绊倒风险,旨在减少劳动场所职业跌倒伤害.方法 设计3因子步态实验,3因子包括障碍深度(5和10 cm)、障碍高度(1,5和15 cm)和步频(95和125 step/min).实验招募共计8名男性大学生作为受测者,运用Vicon动作捕捉系统收集不同步频下,越过不同深度及高度障碍时受测者的步态数据,并对其进行统计分析.结果 障碍深度对越过障碍时脚到障碍最小间隙(MFCs)没有显著的影响(P＞0.05),障碍高度对MFCs具有显著的影响(P＜0.0001),越过障碍时步长受步频的影响是显著的(P＜0.05),建立MFCs与步长、实验3因子的线性逐步回归模型.结论 越过障碍时可以不考虑障碍深度的影响,随着障碍高度的增大、步频的加快,绊倒风险不断增大;采取增加抬脚高度、增大步长的策略可以减小越过障碍时的绊倒风险.本研究为控制越过地面障碍时绊倒风险,减少跌倒伤害提供理论参考.
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    Key words
    occupntion henlth,fall injury,accident prevention,obstacle height,obstacle depth,walking frequen-cy,crossing an obstacle,the risk of tripping,production safety
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    • Pretraining has recently greatly promoted the development of natural language processing (NLP)
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    【要点】：研究分析了障碍深度、高度及行走者步频对越过障碍时绊倒风险的影响，提出了减少绊倒风险的策略。
    

    【方法】：通过设计包含障碍深度、高度和步频三个因子的步态实验，收集并分析受测者在不同条件下的步态数据。
    

    【实验】：使用Vicon动作捕捉系统，招募8名男性大学生作为受测者，进行实验，数据集名称未提及。结果显示障碍深度对绊倒风险无显著影响，障碍高度和步频则有显著影响，并建立了相关线性逐步回归模型。