Department of Kinesiology, Laval University, Quebec City, QC, Canada; Centre for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale-Nationale (CIUSSS-CN), Quebec City, QC, Canada.
Institut de Recherche Robert-Sauvé en Santé et en Sécurité du Travail (IRSST), Montreal, Canada.
Appl Ergon. 2019 Jan;74:124-133. doi: 10.1016/j.apergo.2018.08.018. Epub 2018 Aug 24.
The risk of back injury during work remains high today for manual materials handler. The purpose of this study is to identify the potential presence of compensatory strategies in obese and non-obese handlers and evaluate the impact these strategies have on trunk kinematics and kinetics. The biomechanical and ergonomic impacts in 17 obese and 20 healthy-weight handlers were evaluated. The task studied consisted in moving boxes from a conveyor to a hand trolley and back. The results show that the anthropometric characteristics of obese handlers are linked to a significant increase in peak lumbar loading during lifting and lowering of boxes. Few postural differences between the two groups were observed. These results suggest that the excess weight of an obese worker has a significant added effect on the musculoskeletal structures of the back, which exposes obese handlers to a higher risk of developing a musculoskeletal disorder during load handling.
如今，对于体力搬运工来说，工作过程中背部受伤的风险仍然很高。本研究旨在确定肥胖和非肥胖搬运工是否存在代偿策略，并评估这些策略对躯干运动学和动力学的影响。对 17 名肥胖和 20 名体重正常的搬运工进行了生物力学和人体工程学评估。研究的任务是将箱子从传送带上移到手推车上，然后再移回来。结果表明，肥胖搬运工的人体测量特征与在抬起和放下箱子时腰椎峰值负荷显著增加有关。两组之间观察到的姿势差异很小。这些结果表明，肥胖工人的超重对背部的肌肉骨骼结构有显著的附加影响，这使肥胖搬运工在搬运负荷时更容易患上肌肉骨骼疾病。
