Hand-Arm Vibration Controls for Jackleg Rock Drills: A Pilot Study Assessing Ergonomic Hazards.
Hand-Arm Vibration Controls for Jackleg Rock Drills: A Pilot Study Assessing Ergonomic Hazards.
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DOI：
10.1007/s42461-021-00451-6
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Gilkey D
中科院分区：
文献类型：
--
作者：
Kremer C;Autenrieth D;Stack T;Rosenthal S;Gilkey D
千斤顶钻机操作员暴露在有害水平的手臂振动（HAV）中。抗振手柄和手套可适度减少高空作业钻机操作员使用AV手柄和手套时的HAV暴露和前臂肌肉用力。本初步研究的目的是调查与操作员经历的前臂肌肉用力相比，使用抗振手套和手柄时HAV的变化，并采用表面肌电图（EMG）进行测量。五名受试者在四种不同情况下操作钻：无防振控制、仅防振手套、仅防振手柄以及同时使用防振手柄和手套。肌肉用力表示为最大自主收缩的百分比（%MVC），并使用Welch方差分析与Games-Howell事后比较进行比较。同时使用两种防振控制的病例（最大握把直径）与手术期间所有前臂肌肉组合的平均%MVC（36.13%）相关，显著高于其他病例（p <0.05）。平均HAV暴露量无统计学显著差异。与没有任何防振控制的对照情况相比，带有防振手套箱的防振手柄仅将最大允许暴露时间增加了8分钟。这些结果表明，与使用防震手柄和手套导致的肌肉用力增加相比，使用防震手柄和手套导致的HAV暴露量的适度减少可能显得苍白无力，并且千斤顶钻机操作员之间的这种权衡是一个值得进一步调查的潜在问题。
Jackleg drill operators are exposed to harmful levels of hand-arm vibration (HAV). Anti-vibration handles and gloves provide modest reductions in HAV exposures and forearm muscle exertion from the use of AV handles and gloves by jackleg drill operators. The goal of this pilot study was to investigate changes in HAV with the use of anti-vibration gloves and handles compared to forearm muscle exertion experienced by operators and measured with surface electromyography (EMG). Five subjects operated the drill under four different cases: no anti-vibration controls, anti-vibration gloves only, anti-vibration handle only, and simultaneous anti-vibration handle and glove use. Muscle exertion was expressed as a percent of maximum voluntary contraction (%MVC) and was compared using Welch’s ANOVA with Games-Howell post-hoc comparisons. The case with both anti-vibration controls in use simultaneously (largest grip diameter) was associated with a mean %MVC of 36.13% during operation for all forearm muscles combined, which was significantly higher than the other cases (p < 0.05). There were no statistically significant differences in mean HAV exposures. The anti-vibration handle with anti-vibration glove case only increased the maximum allowable exposure time by eight minutes as compared to the control case without any anti-vibration controls. These results suggest that the modest HAV exposure reductions from the use of anti-vibration handles and gloves may pale in comparison to the increased muscle exertion resulting from their use, and this tradeoff among jackleg drill operators is a potential concern that warrants further investigation.
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影响因子：
2.5
作者：
Hoozemans, MJM;van Dieën, JH
通讯作者：
van Dieën, JH
DOI：
10.1007/s004200050280
发表时间：
1998-06-01
影响因子：
3
作者：
Malchaire, J;Diaz, LSR;de Schaetzen, D
通讯作者：
de Schaetzen, D
DOI：
10.1016/j.ergon.2010.05.004
发表时间：
2010-09-01
影响因子：
3.1
作者：
Wimer, Bryan;McDowell, Thomas W.;Dong, Ren G.
通讯作者：
Dong, Ren G.
DOI：
10.1016/j.ergon.2004.11.003
发表时间：
2005-06-01
影响因子：
3.1
作者：
Kong, YK;Lowe, BD
通讯作者：
Lowe, BD
影响因子：
2.4
作者：
Rossi, Jeremy;Berton, Eric;Vigouroux, Laurent
通讯作者：
Vigouroux, Laurent