K Galamb1,2, B Szilágyi1, O M Magyar1, T Hortobágyi3, R Nagatomi4,5, M Váczi6, J Négyesi1,4. 1. 1 Pain Clinic , Budapest, Hungary. 2. 2 Department of Movement, Human and Health Sciences, University of Rome , Rome, Italy. 3. 3 Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen , Groningen, The Netherlands. 4. 4 Department of Medicine and Science in Sports and Exercise, Tohoku University Graduate School of Medicine , Sendai, Japan. 5. 5 Division of Biomedical Engineering for Health & Welfare, Tohoku University Graduate School of Biomedical Engineering , Sendai, Japan. 6. 6 Institute of Sport Sciences and Physical Education, University of Pécs , Pécs, Hungary.
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.
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.
Entities:
Keywords:
dynamometer; handedness; knee joint; laterality; position sense
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