Comparison of push/pull force estimates using a single-axis gauge versus a three-dimensional hand transducer
Comparison of push/pull force estimates using a single-axis gauge versus a three-dimensional hand transducer
复制标题
使用单轴测量仪与三维手动传感器进行推/拉力估计的比较
DOI：
10.1016/j.apergo.2020.103184
复制
发表时间：
2020
影响因子：
3.2
通讯作者：
Marras, William S.
中科院分区：
文献类型：
--
作者：
Weston, Eric B.;Marras, William S.
本研究调查了使用单轴测力计进行推/拉力测量对与用力相关的动力学/运动学测量的影响，并通过组内相关性评估了两种技术（单轴测力计，三维手传感器）和各种测试条件下记录的力之间的一致性。独立测量指标包括用力类型（推、拉、转身）、测试条件（自然/单独推车，使用测力计以快/慢/自行选择的速度）和推车重量（轻、重）。相关指标包括平均施力角度、两种技术记录的峰值力和推车速度。观察到技术之间的良好一致性（ICC = 0.998）。同样，在快速配速下使用单轴压力计测得的峰值力与自然测试条件最吻合（ICC = 0.631）。如果要准确地近似现有推/拉指南中的力，则应使用比当前标准规定的更快的初始加速度和持续速度来测量力。今后的工作还应提出测量转向力的建议。
This study investigated the effects of using a single-axis force gauge for push/pull force measurement on kinetic/kinematic measures associated with the exertion and assessed agreement between forces recorded from two technologies (single-axis gauge, three-dimensional hand transducer) and various test conditions via intraclass correlations. Independent measures included exertion type (push, pull, turn), test condition (natural/cart alone, using force gauge at fast/slow/self-selected paces), and cart weight (light, heavy). Dependent measures included mean angles of force application, peak forces recorded from both technologies, and cart velocity. Excellent agreement was observed between technologies (ICC = 0.998). Likewise, peak forces using the single-axis gauge at the fast pace agreed best with the natural test condition (ICC = 0.631). Forces should be measured using a faster initial acceleration and sustained velocity than is prescribed by the current standard if they are to accurately approximate forces relative to existing push/pull guidelines. Future work should also develop recommendations for measuring turning forces.