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. 2017 Oct 27;5(10):e166. doi: 10.2196/mhealth.8656

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©Gautam Adusumilli, Solomon Eben Joseph, Michael A Samaan, Brooke Schultz, Tijana Popovic, Richard B Souza, Sharmila Majumdar. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 27.10.2017.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mhealth and uhealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.

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A graphical representation of the Stair Climb Test as captured by an iOS-based gravity sensor. Y-axis features represent changes in gravitational moments during stair ascent and descent.