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Permanent link (DOI): https://doi.org/10.7939/R3JM23W0P

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Leg Dominance may not be a Predictor of Asymmetry in Peak Joint Moments and Ground Reaction Forces during Sit to Stand Movements Open Access

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Author or creator
Schofield, Jonathon
Parent, Eric
Lewicke, Justin
Carey, Jason P.
El-Rich, Marwan
Adeeb, Samer
Additional contributors
Subject/Keyword
Sit-to-stand
Bilateral-symmetry
Kinetics
Biomechanics
Motion analysis
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
Sit-to-stand transfer is a common prerequisite for many daily tasks. Literature often assumes symmetric behavior across the left and right side. Although this assumption of bilateral symmetry is prominent, few studies have validated this supposition. This pilot study uniquely quantifies peak joint moments and ground reaction forces (GRFs), using a Euclidian norm approach, to evaluate bilateral symmetry and its relation to lower limb motor-dominance during sit to stand in ten healthy males. Peak joint moments and GRFs were determined using a motion capture system and inverse dynamics. This analysis included joint moment contributions from all three body planes (sagittal, coronal, and axial) as well as vertical and shearing GRFs. A paired, one-tailed t test was used, suggesting asymmetrical joint moment development in all three lower extremity joints as well as GRFs (P < .05). Furthermore, using an unpaired two-tailed t test, asymmetry developed during these movements does not appear to be predictable by participants' lower limb motor-dominance (P < .025). Consequently, when evaluating sit-to-stand it is suggested the effects of asymmetry be considered in the interpretation of data. The absence of a relationship between dominance and asymmetry prevents the suggestion that one side can be tested to infer behavior of the contralateral.
Date created
2014
DOI
doi:10.7939/R3JM23W0P
License information
© 2014 Schofield, J., Parent, E., Lewicke, J., Carey, J.P., El-Rich, M., & Adeeb, S. This version of this article is open access and can be downloaded and shared. The original author(s) and source must be cited.
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Citation for previous publication
Schofield, Jonathon, Parent, Eric, Lewicke, Justin, Carey, Jason P., El-Rich, Marwan, & Adeeb, Samer. (2014). Leg Dominance may not be a Predictor of Asymmetry in Peak Joint Moments and Ground Reaction Forces during Sit to Stand Movements. Journal of Applied Biomechanics, 30(1), 179-183.  http://dx.doi.org/10.1123/jab.2013-0108

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