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The ability to manipulate objects deteriorates with increasing age. In the coordination of fingertip forces underlying object manipulation, older adults use excessive grip (normal) forces but maintain anticipatory force control during simple manipulations. Daily activities are often more complex and involve grasp manipulations while simultaneously performing other activities. When walking while carrying...
Walking while carrying a hand-held object requires the generation of appropriate grip forces to offset the inertial forces produced during locomotion. The present study examined the interaction between grip forces and locomotion-induced inertial forces across the gait cycle. Eight subjects transported a container under three conditions: self-paced transport with and without accuracy constraints and...
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