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Effects of side-dominance on knee joint proprioceptive target-matching asymmetries.

K. Galamb,B. Szilágyi,OM Magyar,T. Hortobágyi,R. Nagatomi,M. Váczi,J. Négyesi

Published 2018 in Physiology International

ABSTRACT

AIMS Right- and left-side-dominant individuals reveal target-matching asymmetries between joints of the dominant and non-dominant upper limbs. However, it is unclear if such asymmetries are also present in lower limb's joints. We hypothesized that right-side-dominant participants perform knee joint target-matching tasks more accurately with their non-dominant leg compared to left-side-dominant participants. METHODS Participants performed position sense tasks using each leg by moving each limb separately and passively on an isokinetic dynamometer. RESULTS Side-dominance affected (p < 0.05) knee joint absolute position errors only in the non-dominant leg but not in the dominant leg: right-side-dominant participants produced less absolute position errors (2.82° ± 0.72°) with the non-dominant leg compared to left-side-dominant young participants (3.54° ± 0.33°). CONCLUSIONS In conclusion, right-side-dominant participants tend to perform a target-matching task more accurately with the non-dominant leg compared to left-side-dominant participants. Our results extend the literature by showing that right-hemisphere specialization under proprioceptive target-matching tasks may be not evident at the lower limb joints.

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