Drury C G, Deeb J M, Hartman B, Woolley S, Drury C E, Gallagher S
Ergonomics. 1989 Jun;32(6):565-83. doi: 10.1080/00140138908966133.
Earlier studies of the biomechanics of handle placement and angles on boxes in Manual Materials Handling have been limited to sagittally symmetric tasks. This study extends the results to a palletization/depalletization task with considerable asymmetric movement. Part 2 shows how body posture, hand/handle interface, and disc compressive force change in this asymmetric task. The results were not too different from the earlier studies of symmetric tasks, except that a 'traditional' handle position in the upper part of each lateral face (the 2/2 position) proved more effective than had been anticipated.
早期关于人工搬运中把手放置和角度对箱子的生物力学研究仅限于矢状面对称任务。本研究将结果扩展到具有相当不对称运动的码垛/卸垛任务。第2部分展示了在这种不对称任务中身体姿势、手/把手界面和椎间盘压缩力是如何变化的。结果与早期对称任务的研究没有太大不同，只是事实证明，每个侧面上部的“传统”把手位置（2/2位置）比预期的更有效。
