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Respective and Combined Effects of Impairments in Sensorimotor Systems and Cognition on Gait Performance: A Population-Based Cross-Sectional Study

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  • Olivier Beauchet
  • Cyrille P Launay
  • Bruno Fantino
  • Gilles Allali
  • Cédric Annweiler

Abstract

Background: Respective and combined effects of impairments in sensorimotor systems and cognition on gait performance have not been fully studied. This study aims to describe the respective effects of impairments in muscle strength, distance vision, lower-limb proprioception and cognition on the Timed Up & Go (TUG) scores (i.e., performed TUG [pTUG], imagined TUG [iTUG] and the time difference between these two tests [delta TUG]) in older community-dwellers; and to examine their combined effects on TUG scores. Methods: Based on a cross-sectional design, 1792 community-dwellers (70.2±4.8 years; 53.6% female) were recruited. Gait performance was assessed using pTUG, iTUG and delta TUG. Participants were divided into healthy individuals and 15 subgroups of individuals according to the presence of impairment in one or more subsystems involved in gait control (i.e., muscle strength and/or distance vision and/or lower-limb proprioception and/or cognition [episodic memory and executive performance]). Impairment in muscle strength, distance vision and lower-limb proprioception was defined as being in the lowest tertile of performance. Impairment in cognition was defined as abnormal episodic memory and executive tests. Results: A total of 191 (10.7%) exhibited impairment in muscle strength, 188 (10.5%) in distance vision, 302 (16.9%) in lower-limb proprioception, and 42 (2.3%) in cognition. Linear regressions showed that cognitive impairment as well as dual combinations of impairments were associated with increased pTUG (P

Suggested Citation

  • Olivier Beauchet & Cyrille P Launay & Bruno Fantino & Gilles Allali & Cédric Annweiler, 2015. "Respective and Combined Effects of Impairments in Sensorimotor Systems and Cognition on Gait Performance: A Population-Based Cross-Sectional Study," PLOS ONE, Public Library of Science, vol. 10(5), pages 1-14, May.
    • Handle: RePEc:plo:pone00:0125102
    DOI: 10.1371/journal.pone.0125102
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    Cited by:

    1. Olivier Beauchet & Cyrille P Launay & Harmehr Sekhon & Jennifer Gautier & Julia Chabot & Elise J Levinoff & Gilles Allali, 2018. "Body position and motor imagery strategy effects on imagining gait in healthy adults: Results from a cross-sectional study," PLOS ONE, Public Library of Science, vol. 13(3), pages 1-11, March.

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