The threshold trip duration for which recovery is no longer possible is associated with strength and reaction time

Journal of Biomechanics
Cécile SmeestersThomas A McMahon

Abstract

The recovery of young adults from trips of increasing severity was studied. Our null hypothesis was that lower extremity strength, and reaction time, step time, step distance and step velocity measured in a volitional stepping task would not explain a significant portion of the variance in the magnitude of the threshold trip duration for which recovery is no longer possible. Ten males and 11 females (average age 26.8 and 28.4 years old, respectively) were subjected to trips of increasing duration until recovery was no longer possible with a single step. The average threshold trip duration for which subjects were no longer able to recover with a single step was 681+/-169ms. The threshold trip duration significantly increased as lower extremity strength increased and volitional reaction time decreased (multiple stepwise linear regression: R(2)=0.52, p=0.001). The other volitional step parameters and the subject characteristics were not significantly associated with the magnitude of the threshold trip duration. These results suggest that some trip-related falls may be due to slower reaction times and/or reduced lower extremity strengths.

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Citations

Sep 21, 2004·Biological cybernetics·A Forner CorderoF C T van der Helm
Jun 4, 2005·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Michael L Madigan, Emily M Lloyd
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Jan 18, 2005·Journal of Biomechanics·Mirjam PijnappelsJaap H van Dieën
Nov 3, 2004·Journal of Biomechanics·Mirjam PijnappelsJaap H van Dieën
Jan 18, 2006·Gait & Posture·Hyun Gu Kang, Jonathan B Dingwell
Oct 15, 2013·Human Movement Science·Paulien E Roos, Jonathan B Dingwell
Jun 5, 2014·Journal of Biomechanics·Camila ShirotaTodd A Kuiken
Aug 28, 2014·Gait & Posture·Melissa C KilbyKarl M Newell
Jan 25, 2006·Experimental Brain Research·Hyun Gu Kang, Jonathan B Dingwell
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Oct 3, 2018·Biomechanics and Modeling in Mechanobiology·Pinaki BhattacharyaMarco Viceconti
Feb 17, 2021·Journal of Biomechanical Engineering·Maura E EveldMichael Goldfarb

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