4.0 Article

Changes in Spatiotemporal Measures and Variability During User-Driven Treadmill, Fixed-Speed Treadmill, and Overground Walking in Young Adults: A Pilot Study

Journal

JOURNAL OF APPLIED BIOMECHANICS
Volume 37, Issue 3, Pages 277-281

Publisher

HUMAN KINETICS PUBL INC
DOI: 10.1123/jab.2020-0109

Keywords

gait; self-selected; walk; locomotion

Funding

  1. Auburn University College of Education Seed Grant award [JR18SG]

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The study found that participants walked fastest overground, with gait cycle speed variability significantly lower in the fixed-speed treadmill condition compared to the user-driven and overground conditions. There were no significant differences between overground walking and user-driven treadmill walking, suggesting that the user-driven treadmill can better simulate the variability of overground walking, potentially leading to more natural adaptation and motor control patterns of walking.
Walking is an integral indicator of human health commonly investigated while walking overground and with the use of a treadmill. Unlike fixed-speed treadmills, overground walking is dependent on the preferred walking speed under the individuals' control. Thus, user-driven treadmills may have the ability to better simulate the characteristics of overground walking. This pilot study is the first investigation to compare a user-driven treadmill, a fixed-speed treadmill, and overground walking to understand differences in variability and mean spatiotemporal measures across walking environments. Participants walked fastest overground compared to both fixed and user-driven treadmill conditions. However, gait cycle speed variability in the fixed-speed treadmill condition was significantly lower than the user-driven and overground conditions, with no significant differences present between overground and user-driven treadmill walking. The lack of differences in variability between the user-driven treadmill and overground walking may indicate that the user-driven treadmill can better simulate the variability of overground walking, potentially leading to more natural adaptation and motor control patterns of walking.

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