Walking with a four wheeled walker (rollator) significantly reduces EMG lower-limb muscle activity in healthy subjects

Journal of Bodywork and Movement Therapies
Zorica SuicaClare Maguire

Abstract

To investigate the immediate effect of four-wheeled- walker(rollator)walking on lower-limb muscle activity and trunk-sway in healthy subjects. In this cross-sectional design electromyographic (EMG) data was collected in six lower-limb muscle groups and trunk-sway was measured as peak-to-peak angular displacement of the centre-of-mass (level L2/3) in the sagittal and frontal-planes using the SwayStar balance system. 19 subjects walked at self-selected speed firstly without a rollator then in randomised order 1. with rollator 2. with rollator with increased weight-bearing. Rollator-walking caused statistically significant reductions in EMG activity in lower-limb muscle groups and effect-sizes were medium to large. Increased weight-bearing increased the effect. Trunk-sway in the sagittal and frontal-planes showed no statistically significant difference between conditions. Rollator-walking reduces lower-limb muscle activity but trunk-sway remains unchanged as stability is likely gained through forces generated by the upper-limbs. Short-term stability is gained but the long-term effect is unclear and requires investigation.

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Citations

Mar 31, 2019·Journal of Neuroengineering and Rehabilitation·Benjamin R ShumanKatherine M Steele
Mar 29, 2020·Assistive Technology : the Official Journal of RESNA·Wen Liang YeohSatoshi Muraki
Nov 24, 2016·Zeitschrift für Gerontologie und Geriatrie·Ulrich LindemannClemens Becker
Nov 23, 2021·Disability and Rehabilitation·Geoffrey S BalkmanSara J Morgan
Dec 24, 2021·Disability and Rehabilitation. Assistive Technology·Wen Liang YeohSatoshi Muraki

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