ArticleScientific reports2019
Non-ideal behavior of a treadmill depends on gait phase, speed, and weight.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- The effects of perturbation intensities on backward slip-falls induced by a split-belt treadmill.Scientific reports · 2025Article
- Professional long distance runners achieve high efficiency at the cost of weak orbital stability.Heliyon · 2024Article
- Physical factors that differentiate body kinematics between treadmill and overground walking.Frontiers in bioengineering and biotechnology · 2022Article
- The impact of obesity on gait stability in older adults.Journal of biomechanics · 2020Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Noticeable differences exist between treadmill and overground walking; kinematics, kinetics, and muscle activation patterns differ between the two. Many previous studies have attributed the differences to changes in visual information, air resistance, and psychological effects such as fear. In this study, we demonstrate that no treadmill serves as an inertial frame of reference. Considering the linear momentum principle, the finite sampling rate of the controller, and the limited power of the treadmill motor, we predict that 1) the error of the treadmill speed periodically varies depending on the locomotion phase and 2) this non-ideal behavior becomes more evident as the locomotion speed or the weight of the walker increases. Experimental observation confirmed our predictions by quantifying the variation of the actual treadmill belt speed and the ground reaction force in the anterior-posterior direction for different locomotion speeds and subject weights. These results emphasize a need for design criteria like the minimum sampling rate and the minimum motor power that treadmill locomotion studies should consider.
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Registered trials
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