Skip to main content
Fig. 1 | Journal of NeuroEngineering and Rehabilitation

Fig. 1

From: Effects of unilateral real-time biofeedback on propulsive forces during gait

Fig. 1

a Schematic of the experimental protocol. The participants walked on an instrumented treadmill and were provided visual and auditory feedback to increase peak AGRF in the right leg. The timeline of the experiment is shown at the bottom. The ten time points when AGRF data were collected from the right and left legs during the experiment are shown by vertical arrows. b Antero-posterior GRFs normalized to the gait cycle for a representative participant at baseline (thin line) and during biofeedback training (bold line). During biofeedback, the participant was able to increase the anteriorly-directed GRFs (positive forces in this graph) to match the target (shown by dashed horizontal line). Error bars show the participant’s standard deviation across 10 gait cycles. Additionally, arrows show the raw force data that match the biofeedback visual display arrow’s movement, shown in panel (c), during walking. c Schematic showing the biofeedback paradigm. The black arrow indicates the current antero-posterior GRF being generated during the stride cycle, and the bar indicates the targeted AGRF value. Visual feedback provides participants an estimate of how close or far they are from the targeted AGRF. An auditory tone provides auditory feedback indicating successful achievement of targeted AGRFs during the step cycle

Back to article page