Background: Activity trackers may motivate persons to engage in healthy behaviors. They are also used in research and may help manage chronic conditions related to lifestyle (1). New devices have emerged as alternatives to traditional heart rate trackers, which require a separate chest strap. One type is a wrist-worn tracker with a light-emitting diode (LED). It measures the heart rate from tiny changes in skin blood volume by using light reflected from the skin. These new devices are unobtrusive and appropriate for continuous, long-term wear. Although previous studies have shown that they are generally accurate for measuring the number of ...
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Author, Article and Disclosure Information
From University of Wisconsin, Madison, Wisconsin; Loras College, Dubuque, Iowa; University of Wisconsin, Madison, Wisconsin.
Disclosures: Authors have disclosed no conflicts of interest. Forms can be viewed at www.acponline.org/authors/icmje/ConflictOfInterestForms.do?msNum=L16-0353.
This article was published at Annals.org on 11 April 2017.
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