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Article: Inter-device agreement between fitbit flex 1 and 2 for assessing sedentary behavior and physical activity

TitleInter-device agreement between fitbit flex 1 and 2 for assessing sedentary behavior and physical activity
Authors
Keywordssedentary behavior
physical activity
inter-device agreement
epidemiological
Issue Date2021
PublisherMolecular Diversity Preservation International. The Journal's web site is located at http://www.mdpi.org/ijerph
Citation
International Journal of Environmental Research and Public Health, 2021, v. 18, p. article no. 2716 How to Cite?
AbstractThis study examined the inter-model agreement between the Fitbit Flex (FF) and FF2 in estimating sedentary behavior (SED) and physical activity (PA) during a free-living condition. 33 healthy adults wore the FF and FF2 on non-dominant wrist for 14 consecutive days. After excluding sleep and non-wear time, data from the FF and FF2 was converted to the time spent (min/day) in SED and PA using a proprietary algorithm. Pearson’s correlation was used to evaluate the association between the estimates from FF and FF2. Mean absolute percent errors (MAPE) were used to examine differences and measurement agreement in SED and PA estimates between FF and FF2. Bland-Altman (BA) plots were used to examine systematic bias between two devices. Equivalence testing was conducted to examine the equivalence between the FF and FF2. The FF2 had strong correlations with the FF in estimating SED and PA times. Compared to the FF, the FF2 yielded similar SED and PA estimates along with relatively low measurement discords and did not have significant systematic biases for SED and Moderate-to-vigorous PA estimates. Our findings suggest that researchers may choose FF2 as a measurement of SED and PA when FF is not available in the market during the longitudinal PA research.
Persistent Identifierhttp://hdl.handle.net/10722/299051
ISSN
2019 Impact Factor: 2.849
2023 SCImago Journal Rankings: 0.808
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorKwon, S-
dc.contributor.authorBurns, RD-
dc.contributor.authorKim, Y-
dc.contributor.authorBai, Y-
dc.contributor.authorByun, W-
dc.date.accessioned2021-04-28T02:25:33Z-
dc.date.available2021-04-28T02:25:33Z-
dc.date.issued2021-
dc.identifier.citationInternational Journal of Environmental Research and Public Health, 2021, v. 18, p. article no. 2716-
dc.identifier.issn1661-7827-
dc.identifier.urihttp://hdl.handle.net/10722/299051-
dc.description.abstractThis study examined the inter-model agreement between the Fitbit Flex (FF) and FF2 in estimating sedentary behavior (SED) and physical activity (PA) during a free-living condition. 33 healthy adults wore the FF and FF2 on non-dominant wrist for 14 consecutive days. After excluding sleep and non-wear time, data from the FF and FF2 was converted to the time spent (min/day) in SED and PA using a proprietary algorithm. Pearson’s correlation was used to evaluate the association between the estimates from FF and FF2. Mean absolute percent errors (MAPE) were used to examine differences and measurement agreement in SED and PA estimates between FF and FF2. Bland-Altman (BA) plots were used to examine systematic bias between two devices. Equivalence testing was conducted to examine the equivalence between the FF and FF2. The FF2 had strong correlations with the FF in estimating SED and PA times. Compared to the FF, the FF2 yielded similar SED and PA estimates along with relatively low measurement discords and did not have significant systematic biases for SED and Moderate-to-vigorous PA estimates. Our findings suggest that researchers may choose FF2 as a measurement of SED and PA when FF is not available in the market during the longitudinal PA research.-
dc.languageeng-
dc.publisherMolecular Diversity Preservation International. The Journal's web site is located at http://www.mdpi.org/ijerph-
dc.relation.ispartofInternational Journal of Environmental Research and Public Health-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectsedentary behavior-
dc.subjectphysical activity-
dc.subjectinter-device agreement-
dc.subjectepidemiological-
dc.titleInter-device agreement between fitbit flex 1 and 2 for assessing sedentary behavior and physical activity-
dc.typeArticle-
dc.identifier.emailKim, Y: youngwon@hku.hk-
dc.identifier.authorityKim, Y=rp02498-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.3390/ijerph18052716-
dc.identifier.pmid33800254-
dc.identifier.pmcidPMC7967436-
dc.identifier.scopuseid_2-s2.0-85102118101-
dc.identifier.hkuros322218-
dc.identifier.volume18-
dc.identifier.spagearticle no. 2716-
dc.identifier.epagearticle no. 2716-
dc.identifier.isiWOS:000628193600001-
dc.publisher.placeSwitzerland-

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