Title

Postural asymmetries in response to holding evenly and unevenly distributed loads during self-selected stance

Document Type

Article

Publication Date

1-1-2014

Abstract

The authors examined postural asymmetries during quiet stance and while holding evenly or unevenly distributed loads. Right-hand dominant subjects preferentially loaded their right lower limb when holding no load or a load evenly distributed in both hands, but no differences in center of pressure (CoP) were observed between the left and right limbs. However, longer CoP displacement was observed under the preferentially loaded limb, which may reflect a functional asymmetry that allows quick movement of one limb in response to a potential perturbation. When a load was held only in the nondominant hand, sample entropy decreased in the left (loaded) limb but increased in the right (unloaded) limb, suggesting the unloaded foot compensated for a loss of control flexibility in the loaded foot.

Publication Title

Journal of Motor Behavior

Volume

43

Issue

4

First Page

345

Last Page

355

ISSN

0022-2895

DOI Number

10.1080/00222895.2011.596169