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Individual calibration of accelerometers in children and their health-related implications / Lynne M. Boddy, Conor Cunningham, Stuart J. Fairclough, Marie H. Murphy, Gavin Breslin, Lawrence Foweather, Rebecca M. Dagger, Lee E. F. Graves, Nicola D. Hopkins, Gareth Stratton

Journal of Sports Sciences, Pages: 1 - 6

Swansea University Author: Gareth Stratton

Abstract

This study compared children’s physical activity (PA) levels, the prevalence of children meeting current guidelines of ≥60 minutes of daily moderate to vigorous PA (MVPA), and PA-health associations using individually calibrated (IC) and empirical accelerometer cutpoints. Data from 75 (n = 32 boys)...

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Published in: Journal of Sports Sciences
ISSN: 0264-0414 1466-447X
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa35133
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spelling 2017-11-10T15:16:39.1552679 v2 35133 2017-09-06 Individual calibration of accelerometers in children and their health-related implications 6d62b2ed126961bed81a94a2beba8a01 0000-0001-5618-0803 Gareth Stratton Gareth Stratton true false 2017-09-06 STSC This study compared children’s physical activity (PA) levels, the prevalence of children meeting current guidelines of ≥60 minutes of daily moderate to vigorous PA (MVPA), and PA-health associations using individually calibrated (IC) and empirical accelerometer cutpoints. Data from 75 (n = 32 boys) 10–12 year old children were included in this study. Clustered cardiometabolic (CM) risk, directly measured cardiorespiratory fitness (CRF), anthropometric and 7 day accelerometer data were included within analysis. PA data were classified using Froude anchored IC, Evenson et al. (Evenson, K. R., Catellier, D. J., Gill, K., Ondrak, K. S., & McMurray, R. G. (2008). Calibration of two objective measures of physical activity for children. Journal of Sports Sciences, 26(14), 1557–1565. doi:10.1080/02640410802334196) (Ev) and Mackintosh et al. (Mackintosh, K. A., Fairclough, S. J., Stratton, G., & Ridgers, N. D. (2012). A calibration protocol for population-specific accelerometer cutpoints in children. PLoS One, 7(5), e36919. doi:10.1371/journal.pone.0036919) (Mack) cutpoints. The proportion of the cohort meeting ≥60mins MVPA/day ranged from 37%-56% depending on the cutpoints used. Reported PA differed significantly across the cutpoint sets. IC LPA and MPA were predictors of CRF (LPA: standardised β = 0.32, p = 0.002, MPA: standardised β = 0.27 p = 0.013). IC MPA also predicted BMI Z-score (standardised β = −0.35, p = 0.004). Ev VPA was a predictor of BMI Z-score (standardised β = −0.33, p = 0.012). Cutpoint choice has a substantial impact on reported PA levels though no significant associations with CM risk were observed. Froude IC cutpoints represent a promising approach towards classifying children’s PA data. Journal Article Journal of Sports Sciences 1 6 0264-0414 1466-447X Physical activity, accelerometry, threshold, children 31 12 2017 2017-12-31 10.1080/02640414.2017.1377842 COLLEGE NANME Sport and Exercise Sciences COLLEGE CODE STSC Swansea University 2017-11-10T15:16:39.1552679 2017-09-06T10:34:41.2774338 College of Engineering Engineering Lynne M. Boddy 1 Conor Cunningham 2 Stuart J. Fairclough 3 Marie H. Murphy 4 Gavin Breslin 5 Lawrence Foweather 6 Rebecca M. Dagger 7 Lee E. F. Graves 8 Nicola D. Hopkins 9 Gareth Stratton 0000-0001-5618-0803 10 0035133-10112017151557.pdf boddy2017.pdf 2017-11-10T15:15:57.0200000 Output 556063 application/pdf Accepted Manuscript true 2019-02-18T00:00:00.0000000 false eng
title Individual calibration of accelerometers in children and their health-related implications
spellingShingle Individual calibration of accelerometers in children and their health-related implications
Gareth, Stratton
title_short Individual calibration of accelerometers in children and their health-related implications
title_full Individual calibration of accelerometers in children and their health-related implications
title_fullStr Individual calibration of accelerometers in children and their health-related implications
title_full_unstemmed Individual calibration of accelerometers in children and their health-related implications
title_sort Individual calibration of accelerometers in children and their health-related implications
author_id_str_mv 6d62b2ed126961bed81a94a2beba8a01
author_id_fullname_str_mv 6d62b2ed126961bed81a94a2beba8a01_***_Gareth, Stratton
author Gareth, Stratton
author2 Lynne M. Boddy
Conor Cunningham
Stuart J. Fairclough
Marie H. Murphy
Gavin Breslin
Lawrence Foweather
Rebecca M. Dagger
Lee E. F. Graves
Nicola D. Hopkins
Gareth Stratton
format Journal article
container_title Journal of Sports Sciences
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publishDate 2017
institution Swansea University
issn 0264-0414
1466-447X
doi_str_mv 10.1080/02640414.2017.1377842
college_str College of Engineering
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hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
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description This study compared children’s physical activity (PA) levels, the prevalence of children meeting current guidelines of ≥60 minutes of daily moderate to vigorous PA (MVPA), and PA-health associations using individually calibrated (IC) and empirical accelerometer cutpoints. Data from 75 (n = 32 boys) 10–12 year old children were included in this study. Clustered cardiometabolic (CM) risk, directly measured cardiorespiratory fitness (CRF), anthropometric and 7 day accelerometer data were included within analysis. PA data were classified using Froude anchored IC, Evenson et al. (Evenson, K. R., Catellier, D. J., Gill, K., Ondrak, K. S., & McMurray, R. G. (2008). Calibration of two objective measures of physical activity for children. Journal of Sports Sciences, 26(14), 1557–1565. doi:10.1080/02640410802334196) (Ev) and Mackintosh et al. (Mackintosh, K. A., Fairclough, S. J., Stratton, G., & Ridgers, N. D. (2012). A calibration protocol for population-specific accelerometer cutpoints in children. PLoS One, 7(5), e36919. doi:10.1371/journal.pone.0036919) (Mack) cutpoints. The proportion of the cohort meeting ≥60mins MVPA/day ranged from 37%-56% depending on the cutpoints used. Reported PA differed significantly across the cutpoint sets. IC LPA and MPA were predictors of CRF (LPA: standardised β = 0.32, p = 0.002, MPA: standardised β = 0.27 p = 0.013). IC MPA also predicted BMI Z-score (standardised β = −0.35, p = 0.004). Ev VPA was a predictor of BMI Z-score (standardised β = −0.33, p = 0.012). Cutpoint choice has a substantial impact on reported PA levels though no significant associations with CM risk were observed. Froude IC cutpoints represent a promising approach towards classifying children’s PA data.
published_date 2017-12-31T03:53:13Z
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