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.

这项研究调查了使用单轴测力计进行推/拉力测量对与运动相关的动力学/运动学测量的影响，并评估了两种技术（单轴测力计，三维手部传感器）记录的力之间的一致性。通过类内相关的各种测试条件。独立的措施包括：用力类型（推，拉，转），测试条件（仅自然/推车，以快速/慢速/自行选择的速度使用测力计）和推车重量（轻，重）。相关措施包括平均作用力角度，两种技术记录的峰值力以及推车速度。在技​​术之间观察到极好的一致性（ICC = 0.998）。同样，使用单轴压力计以最快的速度产生的峰值力与自然测试条件（ICC = 0.631）最为吻合。如果要相对于现有的推/拉准则准确估算力，则应使用比当前标准所规定的速度更快的初始加速度和持续速度来测量力。未来的工作还应提出测量转弯力的建议。