Abstract
Slips/falls are the cause of numerous injuries in the workplace. Successful recovery from a slip requires biomechanical responses. The goal of this study was to investigate the effect of load carrying on corrective responses to slipping perturbations. Ten healthy young adults walked self-paced while body motion and ground reaction forces were collected at 350 Hz. The two conditions were no external load and carrying a 6.8 kg crate. Oil was applied to the floor at some point during multiple trials without the subject's knowledge. During slip events, load carrying affected corrective moments generated at the knee and hip of the leading lower extremity. More specifically, reductions in the flexion moment at the knee and extension moment at the hip were found for loaded conditions. Furthermore, joint kinematics showed that carrying a load reduced knee flexion reactions generated in response to a slipping perturbation under unloaded conditions. Thus, this study suggests that the biomechanical responses were different for load carrying compared to unloaded conditions.
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