Abstract
BackgroundA standard four-wheeled walker is commonly used after surgery for hip fracture to aid ambulation. However, elderly patients experience some difficulties and are at risk for falls; therefore, attempts are being made to address these issues. Research questionDoes the non-powered automatic velocity-controlled (NPAVEC) wheeled walker improves the gait and satisfaction of patients with hip fractures when walking downhill using it? MethodsIn this cross-over study, 21 participants performed three trials of walking downhill with two walkers (an NPAVEC wheeled walker and a standard four-wheeled walker) at a self-selected speed. We compared the lower limb surface electromyography data and self-reported satisfaction scores for both walkers. ResultsRegarding the affected limb, the NPAVEC wheeled walker increased contraction in the vastus medialis (p = 0.003) and tibialis anterior (p = 0.014), and biceps femoris of the unaffected limb (p = 0.01). Additionally, participants reported greater satisfaction when using the NPAVEC wheeled walker (p < 0.001). SignificanceAn NPAVEC wheeled walker, compared to a four-wheeled walker, can assist patients recovering from hip fracture when walking downhill by improving the gait and increasing satisfaction.
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