Woolley, S, collins, T, Mitchell, J and Fredericks, A (2019) Investigation of wearable health tracker version updates. BMJ Health & Care Informatics, 26 (1). ISSN 2632-1009

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Wearable fitness trackers are increasingly used in healthcare applications; however, the frequent updating of these devices is at odds with traditional medical device practices.

Our objective was to explore the nature and frequency of wearable tracker updates recorded in device changelogs, to reveal the chronology of updates and to estimate the intervals where algorithm updates could impact device validations.

Updates for devices meeting selection criteria (that included their use in clinical trials) were independently labelled by four researchers according to simple function and specificity schema.

Device manufacturers have diverse approaches to update reporting and changelog practice. Visual representations of device changelogs reveal the nature and chronology of device iterations. 13% of update items were unspecified and 32% possibly affected validations with as few as 5 days between updates that may affect validation.

Manufacturers could aid researchers and health professionals by providing more informative device update changelogs.

Item Type: Article
Additional Information: This is the final published version of the article (version of record). It first appeared online via BMJ at http://doi.org/10.1136/bmjhci-2019-100083 - please refer to any applicable terms of use of the publisher.
Subjects: R Medicine > RA Public aspects of medicine
R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine
T Technology > T Technology (General)
Divisions: Faculty of Natural Sciences > School of Computing and Mathematics
Depositing User: Symplectic
Date Deposited: 10 Oct 2019 10:15
Last Modified: 10 Oct 2019 10:22
URI: https://eprints.keele.ac.uk/id/eprint/7003

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