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Validity of SC-StepRx pedometer-derived moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth

BACKGROUND: The purpose of this study was to determine the validity of the SC-StepRx pedometer to assess moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth aged 10-17 years. METHODS: Physical activity intensity assessed via in...

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Autores principales: Saunders, Travis John, Gray, Casey Ellen, Borghese, Michael Marc, McFarlane, Allison, Mbonu, Afekwo, Ferraro, Zachary Michael, Tremblay, Mark Stephen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4046090/
https://www.ncbi.nlm.nih.gov/pubmed/24886319
http://dx.doi.org/10.1186/1471-2458-14-519
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author Saunders, Travis John
Gray, Casey Ellen
Borghese, Michael Marc
McFarlane, Allison
Mbonu, Afekwo
Ferraro, Zachary Michael
Tremblay, Mark Stephen
author_facet Saunders, Travis John
Gray, Casey Ellen
Borghese, Michael Marc
McFarlane, Allison
Mbonu, Afekwo
Ferraro, Zachary Michael
Tremblay, Mark Stephen
author_sort Saunders, Travis John
collection PubMed
description BACKGROUND: The purpose of this study was to determine the validity of the SC-StepRx pedometer to assess moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth aged 10-17 years. METHODS: Physical activity intensity assessed via indirect calorimetry served as the criterion standard. A convenience sample of 40 participants (20 boys, 20 girls) wore 6 SC-StepRx pedometers, 2 ActiGraph GT3X accelerometers, 2 Actical accelerometers, 1 Walk4Life MVP pedometer and 1 NL-1000 pedometer while walking/running at speeds approximating 2, 3, 4, 6 and 7 METs. Associations between indirect calorimetry and each activity monitor were assessed using linear regression analyses in SAS 9.2. RESULTS: Estimates of moderate and vigorous physical activity from all monitors were significantly associated with the criterion standard of indirect calorimetry. The strongest associations with the criterion measure were observed for the SC-StepRx with moderate/vigorous thresholds of 110/130 steps•minute(−1), and the NL-1000 (R(2) = 0.82, p <0.05). The SC-StepRx with moderate/vigorous thresholds of 110/130 steps•minute(−1) also exhibited the highest combined sensitivity (92.9%) and specificity (96.5%) for correctly identifying a bout of moderate-to-vigorous physical activity. CONCLUSIONS: This study demonstrates that the SC-StepRx pedometer is a valid tool for the measurement of moderate and vigorous physical activity in children and youth.
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spelling pubmed-40460902014-06-06 Validity of SC-StepRx pedometer-derived moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth Saunders, Travis John Gray, Casey Ellen Borghese, Michael Marc McFarlane, Allison Mbonu, Afekwo Ferraro, Zachary Michael Tremblay, Mark Stephen BMC Public Health Research Article BACKGROUND: The purpose of this study was to determine the validity of the SC-StepRx pedometer to assess moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth aged 10-17 years. METHODS: Physical activity intensity assessed via indirect calorimetry served as the criterion standard. A convenience sample of 40 participants (20 boys, 20 girls) wore 6 SC-StepRx pedometers, 2 ActiGraph GT3X accelerometers, 2 Actical accelerometers, 1 Walk4Life MVP pedometer and 1 NL-1000 pedometer while walking/running at speeds approximating 2, 3, 4, 6 and 7 METs. Associations between indirect calorimetry and each activity monitor were assessed using linear regression analyses in SAS 9.2. RESULTS: Estimates of moderate and vigorous physical activity from all monitors were significantly associated with the criterion standard of indirect calorimetry. The strongest associations with the criterion measure were observed for the SC-StepRx with moderate/vigorous thresholds of 110/130 steps•minute(−1), and the NL-1000 (R(2) = 0.82, p <0.05). The SC-StepRx with moderate/vigorous thresholds of 110/130 steps•minute(−1) also exhibited the highest combined sensitivity (92.9%) and specificity (96.5%) for correctly identifying a bout of moderate-to-vigorous physical activity. CONCLUSIONS: This study demonstrates that the SC-StepRx pedometer is a valid tool for the measurement of moderate and vigorous physical activity in children and youth. BioMed Central 2014-05-28 /pmc/articles/PMC4046090/ /pubmed/24886319 http://dx.doi.org/10.1186/1471-2458-14-519 Text en Copyright © 2014 Saunders et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research Article
Saunders, Travis John
Gray, Casey Ellen
Borghese, Michael Marc
McFarlane, Allison
Mbonu, Afekwo
Ferraro, Zachary Michael
Tremblay, Mark Stephen
Validity of SC-StepRx pedometer-derived moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth
title Validity of SC-StepRx pedometer-derived moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth
title_full Validity of SC-StepRx pedometer-derived moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth
title_fullStr Validity of SC-StepRx pedometer-derived moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth
title_full_unstemmed Validity of SC-StepRx pedometer-derived moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth
title_short Validity of SC-StepRx pedometer-derived moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth
title_sort validity of sc-steprx pedometer-derived moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4046090/
https://www.ncbi.nlm.nih.gov/pubmed/24886319
http://dx.doi.org/10.1186/1471-2458-14-519
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