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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
2013 Impact Factor: 2.298
 
DOIhttp://dx.doi.org/10.1007/s00421-008-0789-4
 
ISI Accession Number IDWOS:000259070300004
 
ReferencesReferences in Scopus
 
DC FieldValue
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.eissn1439-6327
 
dc.identifier.epage444
 
dc.identifier.hkuros152917
 
dc.identifier.isiWOS:000259070300004
 
dc.identifier.issn1439-6319
2013 Impact Factor: 2.298
 
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
 
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<description.abstract>The 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 &#8805;600 min day -1. Participants averaged 9,839 &#177; 3,088 steps day -1, whilst accumulating 44.5 &#177; 22.6, 43.1 &#177; 21.7, and 24.7 &#177; 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 &gt;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 &#8764;90% of those achieving, and &#8764;80% of those not achieving, 30 min day -1 of appropriate activity. They also produced a screening sensitivity of &#8764;95% and a specificity of &#8764;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. &#169; Springer-Verlag 2008.</description.abstract>
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Author Affiliations
  1. The University of Hong Kong