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. 2019 Jan 31;19(3):596. doi: 10.3390/s19030596

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© 2019 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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Thigh angle computed from MAL data $(θ_{M A L})$ and IMU data $(θ_{I M U})$ for a sample trial. Correlation coefficient of the two waveforms is 0.99932 and the root mean square error (RMSE) is 1.0675 for this trial.