期刊
APPLIED ERGONOMICS
卷 91, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apergo.2020.103305
关键词
Digital human modeling; L5/S1 moments; Biomechanical model; Ergonomics
资金
- Israel Science Foundation [899/18]
- Helmsley Charitable Trust through the Agricultural, Biological and Cognitive Robotics Initiative at Ben-Gurion University of the Negev
- Marcus Endowment Fund at Ben-Gurion University of the Negev
The study found that neglecting dynamic movements and using only quasistatic models for industrial manual handling tasks may underestimate spinal loading, increasing pressure on the lower back.
Digital human modeling software uses biomechanical models to compute workers' risk of injury during industrial work processes. In many cases, the biomechanics are calculated using quasistatic models, which neglect the body's dynamics and therefore might be erroneous. This study investigated the differential effect of using a dynamic vs. a quasistatic model on spinal loading during combined manual material handling tasks that are prevalent in industry. An experiment was conducted involving nine male and nine female participants performing a total of 3402 cycles of a box-conveying task (removing, carrying and depositing) for different box masses and shelf heights. Using motion capture data, the peak and cumulative moments acting on the L5/S1 joint were calculated using 3D dynamic and quasistatic models. This revealed that neglecting the dynamic movements (i.e., using a quasistatic model) results in an on average underestimation of 19.7% in the peak spinal moment and 3.6% in the cumulative moment that in some cases exceeds the maximal limit for the compression forces acting on the lower back.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据