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Validity and reliability of the Apple Health app on iPhone for measuring gait parameters in children, adults, and seniors

This study assessed the concurrent validity and test-retest-reliability of the Apple Health app on iPhone for measuring gait parameters in different age groups. Twenty-seven children, 28 adults and 28 seniors equipped with an iPhone completed a 6-min walk test (6MWT). Gait speed (GS), step length (S...

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Bibliographic Details
Main Authors: Werner, Christian (Author) , Hezel, Natalie (Author) , Dongus, Fabienne (Author) , Spielmann, Jan (Author) , Mayer, Jan (Author) , Becker, Clemens (Author) , Bauer, Jürgen M. (Author)
Format: Article (Journal)
Language:English
Published: 2023
In: Scientific reports
Year: 2023, Volume: 13, Pages: 1-11
ISSN:2045-2322
DOI:10.1038/s41598-023-32550-3
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1038/s41598-023-32550-3
Verlag, kostenfrei, Volltext: https://www.nature.com/articles/s41598-023-32550-3
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Author Notes:Christian Werner, Natalie Hezel, Fabienne Dongus, Jan Spielmann, Jan Mayer, Clemens Becker & Jürgen M. Bauer
Description
Summary:This study assessed the concurrent validity and test-retest-reliability of the Apple Health app on iPhone for measuring gait parameters in different age groups. Twenty-seven children, 28 adults and 28 seniors equipped with an iPhone completed a 6-min walk test (6MWT). Gait speed (GS), step length (SL), and double support time (DST) were extracted from the gait recordings of the Health app. Gait parameters were simultaneously collected with an inertial sensors system (APDM Mobility Lab) to assess concurrent validity. Test-retest reliability was assessed via a second iPhone-instrumented 6MWT 1 week later. Agreement of the Health App with the APDM Mobility Lab was good for GS in all age groups and for SL in adults/seniors, but poor to moderate for DST in all age groups and for SL in children. Consistency between repeated measurements was good to excellent for all gait parameters in adults/seniors, and moderate to good for GS and DST but poor for SL in children. The Health app on iPhone is reliable and valid for measuring GS and SL in adults and seniors. Careful interpretation is required when using the Health app in children and when measuring DST in general, as both have shown limited validity and/or reliability.
Item Description:Veröffentlicht: 01. April 2023
Gesehen am 21.07.2023
Physical Description:Online Resource
ISSN:2045-2322
DOI:10.1038/s41598-023-32550-3

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