Does postural stability affect grasping?

D. Voudouris, S. Radhakrishnan, V. Hatzitaki, E. Brenner

    Research output: Contribution to JournalArticleAcademicpeer-review


    We examined whether challenging upright stance influences the execution of a grasping task. Participants reached to grasp a small sphere while standing either on a stable surface or on foam. Before reaching for the sphere, participants exhibited more body sway and greater fluctuations in the centre of pressure when standing on foam. While reaching for the sphere, the overall body posture changed less when standing on foam than when standing on the stable surface. The digits' and wrist's movements towards the sphere were no different when standing on foam than when standing on the stable surface. Presumably, the redundancy in the way movements can be performed is exploited to choose the most suitable changes in joint angles to achieve the desired movements of the digits under the prevailing conditions. © 2013 Elsevier B.V.
    Original languageEnglish
    Pages (from-to)477-82
    JournalGait and Posture
    Issue number3
    Early online date9 Feb 2013
    Publication statusPublished - 2013


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