Validity of Garmin Vívofit and Polar Loop for measuring daily step counts in free-living conditions in adults

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15510%2F16%3A33159469" target="_blank" >RIV/61989592:15510/16:33159469 - isvavai.cz</a>

Result on the web

<a href="http://www.gymnica.upol.cz/pdfs/gym/2016/03/04.pdf" target="_blank" >http://www.gymnica.upol.cz/pdfs/gym/2016/03/04.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5507/ag.2016.014" target="_blank" >10.5507/ag.2016.014</a>

Result language

angličtina

Original language name

Validity of Garmin Vívofit and Polar Loop for measuring daily step counts in free-living conditions in adults

Original language description

Background: Wrist activity trackers (WATs) are becoming popular and widely used for the monitoring of physical activity. However, the validity of many WATs in measuring steps remains unknown. Objective: To determine the validity of the following WATs: Garmin Vívofit (Vívofit) and Polar Loop (Loop), by comparing them with well-validated devices, Yamax Digiwalker SW-701 pedometer (Yamax) and hip-mounted ActiGraph GT3X+ accelerometer (ActiGraph), in healthy adults. Methods: In free-living conditions, adult volunteers (N = 20) aged 25 to 52 years wore two WATs (Vívofit and Loop) with Yamax and ActiGraph simultaneously over a 7 day period. The validity of Vívofit and Loop was assessed by comparing each device with the Yamax and ActiGraph, using a paired samples t-test, mean absolute percentage errors, intraclass correlation coefficients (ICC) and Bland-Altman plots. Results: The differences between average steps per day were significant for all devices, except the difference between Vívofit and Yamax (p = .06; d = 0.2). Compared with Yamax and ActiGraph, the mean absolute percentage errors of Vívofit were -4.0% and 12.5%, respectively. For Loop the mean absolute percentage error was 8.9% compared with Yamax and 28.0% compared with ActiGraph. Vívofit showed a very strong correlation with both Yamax and ActiGraph (ICC = .89). Loop showed a very strong correlation with Yamax (ICC = .89) and a strong correlation with ActiGraph (ICC = .70). Conclusions: Vívofit showed higher validity than Loop in measuring daily step counts in free-living conditions. Loop appears to overestimate the daily number of steps in individuals who take more steps during a day.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

AK - Sport and leisure time activities

OECD FORD branch

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Project

<a href="/en/project/GA13-32935S" target="_blank" >GA13-32935S: The objectification of comprehensive monitoring of school mental and physical strain in adolescents in the context of physical and mental condition</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta Gymnica

ISSN

2336-4912

e-ISSN

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Volume of the periodical

46

Issue of the periodical within the volume

3

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

7

Pages from-to

129-135

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-84990961122