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Several investigations have demonstrated that localized muscle fatigue (LMF) causes an increase in postural sway measures during quiet stance. Since many falls are likely the result of a postural perturbation, this study investigated the effects of LMF on balance recovery from sagittal plane postural perturbations. Thirty-two participants (16 young, 16 older) were tested. Postural perturbations were...
The purpose of this study was to investigate the effect of lumbar extensor fatigue on postural strategy in response to a balance perturbation. Anteriorly-directed force perturbations were applied to the upper back with a padded pendulum and attempted to challenge the postural control system without eliciting a stepping response. In three separate sessions, subjects were perturbed both before and after...
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