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. 2020 Mar 19;20(6):1720. doi: 10.3390/s20061720

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Graphical representation of the results of the change-point analysis. The graph in each panel depicts the temporal evolution in axial peak tibial acceleration of a subject (numbered 1 to 10) for the concatenated conditions of no-biofeedback (baseline) and biofeedback. A detected change point in the response to biofeedback is represented by a slanting line with a shift in the shaded background. When one or more change points were detected, the time series of the runner’s axial peak tibial acceleration became divided into smaller segments. The control limits (horizontal lines) assume the values come from the normal distribution. The first 90-s or 127 ± 10 (mean ± SD) running gait cycles belong to the no-biofeedback condition. X-axis: running gait cycles (strides). Y-axis: the axial peak tibial acceleration value in g.