Article: Using three objective criteria to examine pedometer guidelines for free-living individuals

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TitleUsing three objective criteria to examine pedometer guidelines for free-living individuals
AuthorsMacfarlane, DJ1
Chan, D1
Chan, KL1
Ho, EYK1
Lee, CCY1
KeywordsAccelerometer
Comparison
Heart rate
Pedometer
Validation
Issue Date2008
PublisherSpringer. The Journal's web site is located at http://www.springer.com/biomed/human+physiology/journal/421
CitationEuropean Journal Of Applied Physiology, 2008, v. 104 n. 3, p. 435-444 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s00421-008-0789-4
AbstractThe purpose was to examine in free-living individuals from a high-density city (1) the objectively determined physical activity levels across quartiles derived from pedometer step counts, (2) the pedometer steps day -1 required to meet health-enhancing guidelines of accruing 30 min day -1 of moderate physical activity and (3) the agreement between three objective criteria for the pedometer guidelines. Over 7 days 49 Hong Kong Chinese aged 15-55 years (n = 30 males) wore a polar heart rate monitor (HRM), an MTI and Tritrac accelerometer, plus a Yamax pedometer for ≥600 min day -1. Participants averaged 9,839 ± 3,088 steps day -1, whilst accumulating 44.5 ± 22.6, 43.1 ± 21.7, and 24.7 ± 19.3 min day -1 of moderate physical activity by the Tritrac, MTI and HRM, respectively. Significant differences between quartiles of pedometer-determined activity were predominantly seen in the accelerometry data, especially during moderate and moderate-to-vigorous intensity activity (effect sizes >1.5 between upper and lower quartiles), but not seen in the HRM data. Using both criterion accelerometer datasets, a threshold of 8,000 steps day -1 accurately categorized ∼90% of those achieving, and ∼80% of those not achieving, 30 min day -1 of appropriate activity. They also produced a screening sensitivity of ∼95% and a specificity of ∼70%, which were considerably higher than those from the HRM data. Overall, the agreement between the three criterion measures suggests 8,000 steps day -1 might be a valid screening tool as a proxy for classifying those meeting public health physical activity recommendations of 30 min day -1 of moderate activity. © Springer-Verlag 2008.
ISSN1439-6319
2011 Impact Factor: 2.147
2011 SCImago Journal Rankings: 0.112
DOIhttp://dx.doi.org/10.1007/s00421-008-0789-4
ISI Accession Number IDWOS:000259070300004
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorMacfarlane, DJ
dc.contributor.authorChan, D
dc.contributor.authorChan, KL
dc.contributor.authorHo, EYK
dc.contributor.authorLee, CCY
dc.date.accessioned2010-05-31T04:11:40Z
dc.date.available2010-05-31T04:11:40Z
dc.date.issued2008
dc.description.abstractThe purpose was to examine in free-living individuals from a high-density city (1) the objectively determined physical activity levels across quartiles derived from pedometer step counts, (2) the pedometer steps day -1 required to meet health-enhancing guidelines of accruing 30 min day -1 of moderate physical activity and (3) the agreement between three objective criteria for the pedometer guidelines. Over 7 days 49 Hong Kong Chinese aged 15-55 years (n = 30 males) wore a polar heart rate monitor (HRM), an MTI and Tritrac accelerometer, plus a Yamax pedometer for ≥600 min day -1. Participants averaged 9,839 ± 3,088 steps day -1, whilst accumulating 44.5 ± 22.6, 43.1 ± 21.7, and 24.7 ± 19.3 min day -1 of moderate physical activity by the Tritrac, MTI and HRM, respectively. Significant differences between quartiles of pedometer-determined activity were predominantly seen in the accelerometry data, especially during moderate and moderate-to-vigorous intensity activity (effect sizes >1.5 between upper and lower quartiles), but not seen in the HRM data. Using both criterion accelerometer datasets, a threshold of 8,000 steps day -1 accurately categorized ∼90% of those achieving, and ∼80% of those not achieving, 30 min day -1 of appropriate activity. They also produced a screening sensitivity of ∼95% and a specificity of ∼70%, which were considerably higher than those from the HRM data. Overall, the agreement between the three criterion measures suggests 8,000 steps day -1 might be a valid screening tool as a proxy for classifying those meeting public health physical activity recommendations of 30 min day -1 of moderate activity. © Springer-Verlag 2008.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationEuropean Journal Of Applied Physiology, 2008, v. 104 n. 3, p. 435-444 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s00421-008-0789-4
dc.identifier.citeulike3427743
dc.identifier.doihttp://dx.doi.org/10.1007/s00421-008-0789-4
dc.identifier.epage444
dc.identifier.hkuros152917
dc.identifier.isiWOS:000259070300004
dc.identifier.issn1439-6319
2011 Impact Factor: 2.147
2011 SCImago Journal Rankings: 0.112
dc.identifier.issue3
dc.identifier.openurl
dc.identifier.pmid18560880
dc.identifier.scopuseid_2-s2.0-51749120116
dc.identifier.spage435
dc.identifier.urihttp://hdl.handle.net/10722/60474
dc.identifier.volume104
dc.languageeng
dc.publisherSpringer. The Journal's web site is located at http://www.springer.com/biomed/human+physiology/journal/421
dc.publisher.placeGermany
dc.relation.ispartofEuropean Journal of Applied Physiology
dc.relation.referencesReferences in Scopus
dc.subjectAccelerometer
dc.subjectComparison
dc.subjectHeart rate
dc.subjectPedometer
dc.subjectValidation
dc.titleUsing three objective criteria to examine pedometer guidelines for free-living individuals
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong