Cargando…
Validation of a consumer-grade activity monitor for continuous daily activity monitoring in individuals with multiple sclerosis
BACKGROUND: Technological advancements of remote-monitoring used in clinical-care and research require validation of model updates. OBJECTIVES: To compare the output of a newer consumer-grade accelerometer to a previous model in people with multiple sclerosis (MS) and to the ActiGraph, a waist-worn...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6876176/ https://www.ncbi.nlm.nih.gov/pubmed/31803492 http://dx.doi.org/10.1177/2055217319888660 |
_version_ | 1783473169195073536 |
---|---|
author | Block, Valerie J Zhao, Chao Hollenbach, Jill A Olgin, Jeffrey E Marcus, Gregory M Pletcher, Mark J Henry, Roland Gelfand, Jeffrey M Cree, Bruce AC |
author_facet | Block, Valerie J Zhao, Chao Hollenbach, Jill A Olgin, Jeffrey E Marcus, Gregory M Pletcher, Mark J Henry, Roland Gelfand, Jeffrey M Cree, Bruce AC |
author_sort | Block, Valerie J |
collection | PubMed |
description | BACKGROUND: Technological advancements of remote-monitoring used in clinical-care and research require validation of model updates. OBJECTIVES: To compare the output of a newer consumer-grade accelerometer to a previous model in people with multiple sclerosis (MS) and to the ActiGraph, a waist-worn device widely used in MS research. METHODS: Thirty-one individuals with MS participated in a 7-day validation by the Fitbit Flex (Flex), Fitbit Flex-2 (Flex2) and ActiGraph GT3X. Primary outcome was step count. Valid epochs of 5-min block increments, where there was overlap of ≥1 step/min for both devices were compared and summed to give a daily total for analysis. RESULTS: Bland–Altman plots showed no systematic difference between the Flex and Flex2; mean step-count difference of 25 more steps-per-day more recorded by Flex2 (95% confidence intervals (CI) = 2, 48; p = 0.04),interclass correlation coefficient (ICC) = 1.00. Compared to the ActiGraph, Flex2 (and Flex) tended to record more steps (808 steps-per-day more than the ActiGraph (95% CI= –2380, 765; p < 0.01), although the ICC was high (0.98) indicating that the devices were likely measuring the same kind of activity. CONCLUSIONS: Steps from Flex and Flex2 can be used interchangeably. Differences in total step count between ActiGraph and Flex devices can make cross-device comparisons of numerical step-counts challenging particularly for faster walkers. |
format | Online Article Text |
id | pubmed-6876176 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-68761762019-12-04 Validation of a consumer-grade activity monitor for continuous daily activity monitoring in individuals with multiple sclerosis Block, Valerie J Zhao, Chao Hollenbach, Jill A Olgin, Jeffrey E Marcus, Gregory M Pletcher, Mark J Henry, Roland Gelfand, Jeffrey M Cree, Bruce AC Mult Scler J Exp Transl Clin Original Research Paper BACKGROUND: Technological advancements of remote-monitoring used in clinical-care and research require validation of model updates. OBJECTIVES: To compare the output of a newer consumer-grade accelerometer to a previous model in people with multiple sclerosis (MS) and to the ActiGraph, a waist-worn device widely used in MS research. METHODS: Thirty-one individuals with MS participated in a 7-day validation by the Fitbit Flex (Flex), Fitbit Flex-2 (Flex2) and ActiGraph GT3X. Primary outcome was step count. Valid epochs of 5-min block increments, where there was overlap of ≥1 step/min for both devices were compared and summed to give a daily total for analysis. RESULTS: Bland–Altman plots showed no systematic difference between the Flex and Flex2; mean step-count difference of 25 more steps-per-day more recorded by Flex2 (95% confidence intervals (CI) = 2, 48; p = 0.04),interclass correlation coefficient (ICC) = 1.00. Compared to the ActiGraph, Flex2 (and Flex) tended to record more steps (808 steps-per-day more than the ActiGraph (95% CI= –2380, 765; p < 0.01), although the ICC was high (0.98) indicating that the devices were likely measuring the same kind of activity. CONCLUSIONS: Steps from Flex and Flex2 can be used interchangeably. Differences in total step count between ActiGraph and Flex devices can make cross-device comparisons of numerical step-counts challenging particularly for faster walkers. SAGE Publications 2019-11-21 /pmc/articles/PMC6876176/ /pubmed/31803492 http://dx.doi.org/10.1177/2055217319888660 Text en © The Author(s) 2019 http://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Original Research Paper Block, Valerie J Zhao, Chao Hollenbach, Jill A Olgin, Jeffrey E Marcus, Gregory M Pletcher, Mark J Henry, Roland Gelfand, Jeffrey M Cree, Bruce AC Validation of a consumer-grade activity monitor for continuous daily activity monitoring in individuals with multiple sclerosis |
title | Validation of a consumer-grade activity monitor for continuous daily activity monitoring in individuals with multiple sclerosis |
title_full | Validation of a consumer-grade activity monitor for continuous daily activity monitoring in individuals with multiple sclerosis |
title_fullStr | Validation of a consumer-grade activity monitor for continuous daily activity monitoring in individuals with multiple sclerosis |
title_full_unstemmed | Validation of a consumer-grade activity monitor for continuous daily activity monitoring in individuals with multiple sclerosis |
title_short | Validation of a consumer-grade activity monitor for continuous daily activity monitoring in individuals with multiple sclerosis |
title_sort | validation of a consumer-grade activity monitor for continuous daily activity monitoring in individuals with multiple sclerosis |
topic | Original Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6876176/ https://www.ncbi.nlm.nih.gov/pubmed/31803492 http://dx.doi.org/10.1177/2055217319888660 |
work_keys_str_mv | AT blockvaleriej validationofaconsumergradeactivitymonitorforcontinuousdailyactivitymonitoringinindividualswithmultiplesclerosis AT zhaochao validationofaconsumergradeactivitymonitorforcontinuousdailyactivitymonitoringinindividualswithmultiplesclerosis AT hollenbachjilla validationofaconsumergradeactivitymonitorforcontinuousdailyactivitymonitoringinindividualswithmultiplesclerosis AT olginjeffreye validationofaconsumergradeactivitymonitorforcontinuousdailyactivitymonitoringinindividualswithmultiplesclerosis AT marcusgregorym validationofaconsumergradeactivitymonitorforcontinuousdailyactivitymonitoringinindividualswithmultiplesclerosis AT pletchermarkj validationofaconsumergradeactivitymonitorforcontinuousdailyactivitymonitoringinindividualswithmultiplesclerosis AT henryroland validationofaconsumergradeactivitymonitorforcontinuousdailyactivitymonitoringinindividualswithmultiplesclerosis AT gelfandjeffreym validationofaconsumergradeactivitymonitorforcontinuousdailyactivitymonitoringinindividualswithmultiplesclerosis AT creebruceac validationofaconsumergradeactivitymonitorforcontinuousdailyactivitymonitoringinindividualswithmultiplesclerosis |