Between-monitor differences in step counts are related to body size: implications for objective physical activity measurement.

Autor: Jeremy Pomeroy; Søren Brage; Jeffrey M Curtis; Pamela D Swan; William C Knowler; Paul W Franks
Sprache: Englisch
Veröffentlicht: 2011
Quelle: Directory of Open Access Journals: DOAJ Articles
Online Zugang: http://europepmc.org/articles/PMC3083395?pdf=render
https://doaj.org/toc/1932-6203
1932-6203
doi:10.1371/journal.pone.0018942
https://doaj.org/article/e0aafb6baddc482683b133c22d7e723e
https://doi.org/10.1371/journal.pone.0018942
https://doaj.org/article/e0aafb6baddc482683b133c22d7e723e
Erfassungsnummer: ftdoajarticles:oai:doaj.org/article:e0aafb6baddc482683b133c22d7e723e
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url http://europepmc.org/articles/PMC3083395?pdf=render
https://doaj.org/toc/1932-6203
1932-6203
doi:10.1371/journal.pone.0018942
https://doaj.org/article/e0aafb6baddc482683b133c22d7e723e
https://doi.org/10.1371/journal.pone.0018942
https://doaj.org/article/e0aafb6baddc482683b133c22d7e723e
url-type primary
primary
primary
primary
primary
info
info
spelling Medicine
R
Science
Q
Between-monitor differences in step counts are related to body size: implications for objective physical activity measurement.
publishDate 2011
publishDate_facet 2011
baseCollectionName Directory of Open Access Journals: DOAJ Articles
baseCountry org
title Between-monitor differences in step counts are related to body size: implications for objective physical activity measurement.
spellingShingle Between-monitor differences in step counts are related to body size: implications for objective physical activity measurement.
title_short Between-monitor differences in step counts are related to body size: implications for objective physical activity measurement.
title_sort Between-monitor differences in step counts are related to body size: implications for objective physical activity measurement.
author2 Jeremy Pomeroy
Søren Brage
Jeffrey M Curtis
Pamela D Swan
William C Knowler
Paul W Franks
author_facet Jeremy Pomeroy
Søren Brage
Jeffrey M Curtis
Pamela D Swan
William C Knowler
Paul W Franks
author2-role Autor
Autor
Autor
Autor
Autor
Autor
abstract The quantification of the relationships between walking and health requires that walking is measured accurately. We correlated different measures of step accumulation to body size, overall physical activity level, and glucose regulation.Participants were 25 men and 25 women American Indians without diabetes (Age: 20-34 years) in Phoenix, Arizona, USA. We assessed steps/day during 7 days of free living, simultaneously with three different monitors (Accusplit-AX120, MTI-ActiGraph, and Dynastream-AMP). We assessed total physical activity during free-living with doubly labeled water combined with resting metabolic rate measured by expired gas indirect calorimetry. Glucose tolerance was determined during an oral glucose tolerance test.Based on observed counts in the laboratory, the AMP was the most accurate device, followed by the MTI and the AX120, respectively. The estimated energy cost of 1000 steps per day was lower in the AX120 than the MTI or AMP. The correlation between AX120-assessed steps/day and waist circumference was significantly higher than the correlation between AMP steps and waist circumference. The difference in steps per day between the AX120 and both the AMP and the MTI were significantly related to waist circumference.Between-monitor differences in step counts influence the observed relationship between walking and obesity-related traits.
abstract_type general
abstract_lang eng
language eng
publisher Public Library of Science (PLoS)
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score 13,76096