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首页> 外文期刊>Annals of work exposures and health. >Whole-Body Vibration and Trunk Posture During Operation of Agricultural Machinery
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Whole-Body Vibration and Trunk Posture During Operation of Agricultural Machinery

机译：农业机械操作期间的全身振动和躯干姿势

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摘要

Exposure to whole-body vibration (WBV) is common among agricultural workers and is associated with musculoskeletal health outcomes such as low back pain. Little is known, however, about the characteristics of exposure experienced during actual production practices. We measured WBV levels during agricultural machinery use among a sample of farmers (n = 55) performing routine agricultural activities and explored machinery attributes that may explain WBV summary measures. We also measured trunk posture to provide additional information about physical exposures during machinery operation. Measurements were made on-farm and during actual work conditions of a sample of agricultural machines (n = 112), including tractors, combines, heavy utility vehicles, and all-terrain vehicles (ATVs). Results indicated the presence of high levels of vibration (median frequency-weighted root-mean-square acceleration of approximately 0.8 m s(-2)) with time signatures that include high-amplitude mechanical shocks (median crest factor of nearly 23). Compared to other machinery types, combines exhibited the lowest WBV levels and among the most favorable trunk postures. Substantial variability was observed in both the WBV and trunk posture summary measures, suggesting for future studies that alternative sampling strategies are needed to fully capture temporal patterns of machinery use.
机译：暴露于全身振动（WBV）在农业工作者中很常见，并且与肌肉骨骼健康结局（例如下腰痛）有关。然而，关于实际生产实践中经历的暴露特征知之甚少。我们在农业机械使用过程中测量了WBV水平（n = 55）进行常规农业活动，并探索了可能解释WBV摘要措施的机械属性。我们还测量了躯干姿势，以提供有关机械操作期间身体暴露的其他信息。在农业机器样品（n = 112）的实际工作条件下进行测量，包括拖拉机，联合收割机，重型公用事业车辆和全地形车（ATV）。结果表明，存在高水平的振动（中位频率加权根平方的加速度，约为0.8 m s（-2）），其时间签名包括高振幅机械冲击（中值波峰近23个）。与其他机械类型相比，联合元素表现出最低的WBV水平以及最有利的树干姿势。在WBV和躯干姿势摘要措施中都观察到了实质性的可变性，这表明未来的研究需要替代采样策略来充分捕获机械使用的时间模式。

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