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. 2018 Aug 27;18(9):2832. doi: 10.3390/s18092832

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© 2018 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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(a) Using the top and bottom peaks in the WIP pattern, s and $i_{s t e p}$ can be obtained. S and I thresholds are determined when the target user performs intentional motion. (b) Equation (3) uses linear interpolation to determine $v_{0}$ .

(a) Using the top and bottom peaks in the WIP pattern, s and $i_{s t e p}$ can be obtained. S and I thresholds are determined when the target user performs intentional motion. (b) Equation (3) uses linear interpolation to determine $v_{0}$ .