To learn more about measurement properties such as reliability and responsiveness: click here.
Scientific References (click on link to view):
1. Nazari G, MacDermid JC. Minimal Detectable Change Thresholds and Responsiveness of Zephyr Bioharness & Fitbit Charge Devices. Journal of Strength and Conditioning Research. 2017 Jul 18.
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2. Nazari G, MacDermid JC, Sinden KE, Richardson J, Tang A. Reliability of Zephyr Bioharness and Fitbit Charge Measures of Heart Rate and Activity at Rest, During the Modified Canadian Aerobic Fitness Test and Recovery. Journal of Strength & Conditioning Research, 2017 Feb 13.
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