Significance of biomechanical and physiological variables during the determination of maximum acceptable weight of lift

摘要

The aim was to identify which biomechanical and physiological variables were associated with the decision to change the weight of lift during he determination of the maximum acceptable weight of lift (MAWL) in a psychophysical study. Fifteen male college students lifted a box of unknown weight at 4.3 lifts/min, and Adjusted the weight until their MAWL was reached. Variables such as heart rate, Trunk positions, velocities and accelerations were measured during the lifting, as Well as estimated spinal loading in terms of moments and spinal forces in three Dimensions using an EMG-assisted biomechanical model.