站立脚传递振动对自我报告的不适度评级的影响
Katie A Goggins1, Taryn J Thompson1,2, Courtney E Lessel1
1Centre for Research in Occupational Safety and Health, Laurentian University, Greater Sudbury ON, Canada.
Work (Reading, Mass.)
|April 19, 2024
概括
自我报告的不适可能表明在职业环境中因脚传递振动 (FTV) 造成伤害的风险. 随着频率的提高,身体下部的不适感增加了,这表明与共振频率和潜在伤害的联系.
科学领域:
- 职业健康 职业健康 职业健康
- 生物力学 生物力学
- 人体工程学就是人体工程学.
背景情况:
- 脚传递振动 (FTV) 在采矿和建筑等行业普遍存在,造成急性和慢性伤害的风险.
- 传统的振动评估在技术上要求很高,对雇主来说也很昂贵.
- 自我报告的不适已经成为FTV相关伤害风险的潜在,可访问的指标.
研究的目的:
- 检查站立FTV曝光如何影响自我报告的不适.
- 为了确定不适度是否因体积和暴露频率而异.
主要方法:
- 30名参与者接受了25-50赫兹频率的站立FTV,持续时间为20-45秒.
- 暴露后,参与者对头部/部,上半身,下半身和全身区域的不适 (0-9) 进行了评分.
- 使用统计分析来评估频率和身体面积对不适的影响.
主要成果:
- 增加频率时,下肢 (LB) 的不适感显著增加 (p < 0.001),与脚结构共振保持一致.
- 头部和部 (HN) 不适显示出非显著的下降趋势,频率较高 (p > 0.0167).
- 在所有测试频率上,身体上部 (UB) 的不适仍然始终低.
结论:
- 研究结果表明,共振频率与不适之间存在相关性,这可能表明受伤风险.
- 虽然不是专业评估的替代品,但自我报告的不适提供了一种简单的方法来监测与共振频率FTV相关的肌肉骨风险.
- 自我报告的不适可以作为对振动引起的伤害的早期预警,促进主动缓解策略.
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