Grasping an object at floor-level: Is movement strategy a matter of age?

Abstract : Bending down to pick things up off the floor is something that we do every day. This multisegment task can be done in a considerable number of postural configurations because of the large number of degrees of freedom to be controlled when executing it. In this study where volunteers performed a repetitive bending task, multisegment kinematic analysis allowed us to identify seven different bending strategies. Most operators used more than one bending strategy, but no particular strategy-type was found to be specific for a specific age group. However, the number of strategies used by an operator decreased with increasing age. It therefore appears that this factor influences the variability of the strategies used when repeatedly executing a movement involving the lower limbs to collect small objects from floor-level. This decrease in movement variability in senior operators may contribute to their increased risk of developing musculoskeletal disorders.
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Submitted on : Monday, November 5, 2018 - 3:28:33 PM
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Martine A. Gilles, Pascal Wild. Grasping an object at floor-level: Is movement strategy a matter of age?. Applied Ergonomics, Elsevier, 2018, 70, pp.34 - 43. ⟨10.1016/j.apergo.2018.02.002⟩. ⟨hal-01912635⟩

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