Lifting low-lying loads in the sagittal plane.
Lifting low-lying loads in the sagittal plane.
复制标题
提升矢状面上的低洼负载。
DOI：
10.1080/00140139208967798
复制
发表时间：
1992
期刊：
影响因子：
2.4
通讯作者：
J. Mazumdar
中科院分区：
文献类型：
--
作者：
G. Noone;J. Mazumdar
采用一个简单的几何模型来研究静态矢状面提升过程中的各种基本技术。推导了各联合反作用力之间的关系。特别是，我们发现可以同时增加（或减少）膝盖和下背部的力量。考虑到下背部、臀部、膝盖和踝关节所受的总力，一般不建议进行垂直背举。当从地面抬起低处的物体时尤其如此。然而，在分析某一吊装任务的最佳技术时，载荷的最小化并不是要考虑的唯一因素。以前还提出了其他几个成本函数。从最小化各种成本函数中得出的比较表明，最小化最大必要肌肉强度可能是推导最佳负载提升配置的最合适方法。
A simple geometrical model was employed to investigate various elementary techniques during static, sagittal plane lifts. Relationships between the various joint reaction forces were deduced. In particular, it was found that it is possible to simultaneously increase (or decrease) both knee and low back forces. In terms of the total force on the low back, hip, knee, and ankle joints, vertical back lifting is generally not recommended. This is especially true when lifting low-lying objects from the ground. However, minimization of loads is not the only factor to consider when analysing the optimal technique of a certain lifting task. Several other cost functions have been previously proposed. Comparisons derived from minimizing various cost functions suggest that the minimization of the maximum necessary muscle intensity may be the most appropriate in deducing optimal load lifting configurations.