...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Industrial Ergonomics >Evaluation of psychometric estimates of vibratory hand-tool grip and push forces
【24h】

Evaluation of psychometric estimates of vibratory hand-tool grip and push forces

机译：振动式手握和推力的心理测算评估

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Tool grip and push forces are important determinants of health risk associated with operation of powered hand tools. In the field, use of sophisticated hand-force instrumentation can be impractical. This study investigated the potential for using psychophysical force recall methods to estimate grip and push forces when operating vibratory hand tools. This study examined various combinations of handle vibration and grip and push force exposures upon one's ability to recall those forces using psychophysical methods. Twelve male subjects grasped and pushed an instrumented handle for 45 s at one of three levels of force while it vibrated sinusoidally at one of five frequencies (0, 12.5, 40, 125, or 250 Hz). We examined the effects of post-exertion rest periods of 10 and 20 s upon force recall performance, and day-to-day test-retest reliability. Results showed vibration frequency and force level differentially influenced grip and push force recall accuracy. Subjects characteristically overestimated grip and push forces; especially during vibration exposures of 40 and 125 Hz. The magnitude of the overestimations increased as target force levels decreased. Test-retest correlations were reasonably strong.
机译：工具的抓握力和推动力是与电动手动工具操作相关的健康风险的重要决定因素。在现场，使用复杂的手动仪器可能是不切实际的。这项研究调查了在操作振动手动工具时使用心理物理力量回想方法来估计握力和推力的潜力。这项研究检查了手震动和握力与推力暴露的各种组合，以了解他们使用心理物理学方法回忆这些力的能力。十二名男性受试者以三种力中的一种抓住并推动了仪器手柄，持续了45 s，同时以五个频率（0、12.5、40、125或250 Hz）之一正弦振动。我们研究了运动后休息10到20 s对力量回忆性能和日常测试重测可靠性的影响。结果表明，振动频率和作用力水平对抓地力和推力召回精度有不同的影响。受试者的特征是高估了握力和推力;特别是在40和125 Hz的振动暴露期间。高估的幅度随着目标力水平的降低而增加。重测相关性相当强。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号