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Body position and motor imagery strategy effects on imagining gait in healthy adults: Results from a cross-sectional study

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  • Olivier Beauchet
  • Cyrille P Launay
  • Harmehr Sekhon
  • Jennifer Gautier
  • Julia Chabot
  • Elise J Levinoff
  • Gilles Allali

Abstract

Background: Assessment of changes in higher levels of gait control with aging is important to better understand age-related gait instability, with the perspective to improve the screening of individuals at risk for falls. The comparison between actual Timed Up and Go test (aTUG) and its imagined version (iTUG) is a simple clinical way to assess age-related changes in gait control. The modulations of iTUG performances by body positions and motor imagery (MI) strategies with normal aging have not been evaluated yet. This study aims 1) to compare the aTUG time with the iTUG time under different body positions (i.e., sitting, standing or supine) in healthy young and middle age, and older adults, and 2) to examine the associations of body positions and MI strategies (i.e., egocentric versus allocentric) with the time needed to complete the iTUG and the delta TUG time (i.e., relative difference between aTUG and iTUG) while taking into consideration clinical characteristics of participants. Methods: A total of 60 healthy individuals (30 young and middle age participants 26.6±7.4 years, and 30 old participants 75.0±4.4 years) were recruited in this cross-sectional study. The iTUG was performed while sitting, standing and in supine position. Times of the aTUG, the iTUG under the three body positions, the TUG delta time and the strategies of MI (i.e., ego representation, defined as representation of the location of objects in space relative to the body axes of the self, versus allocentric representation defined as encoding information about body movement with respect to other object, the location of body being defined relative to the location of other objects) were used as outcomes. Age, sex, height, weight, number of drugs taken daily, level of physical activity and prevalence of closed eyes while performing iTUG were recorded. Results: The aTUG time is significantly greater than iTUG while sitting and standing (P

Suggested Citation

  • 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.
    • Handle: RePEc:plo:pone00:0191513
    DOI: 10.1371/journal.pone.0191513
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    References listed on IDEAS

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    1. Olivier Beauchet & Gilles Allali & Manuel Montero-Odasso & Ervin Sejdić & Bruno Fantino & Cédric Annweiler, 2014. "Motor Phenotype of Decline in Cognitive Performance among Community-Dwellers without Dementia: Population-Based Study and Meta-Analysis," PLOS ONE, Public Library of Science, vol. 9(6), pages 1-10, June.
    2. 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.
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