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

TitleUsing three objective criteria to examine pedometer guidelines for free-living individuals
Authors
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
Citation
European Journal Of Applied Physiology, 2008, v. 104 n. 3, p. 435-444 How to Cite?
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 ≥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.
Persistent Identifierhttp://hdl.handle.net/10722/60474
ISSN
2013 Impact Factor: 2.298
ISI Accession Number ID
References

 

Author Affiliations
  1. The University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorMacfarlane, DJen_HK
dc.contributor.authorChan, Den_HK
dc.contributor.authorChan, KLen_HK
dc.contributor.authorHo, EYKen_HK
dc.contributor.authorLee, CCYen_HK
dc.date.accessioned2010-05-31T04:11:40Z-
dc.date.available2010-05-31T04:11:40Z-
dc.date.issued2008en_HK
dc.identifier.citationEuropean Journal Of Applied Physiology, 2008, v. 104 n. 3, p. 435-444en_HK
dc.identifier.issn1439-6319en_HK
dc.identifier.urihttp://hdl.handle.net/10722/60474-
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.en_HK
dc.languageengen_HK
dc.publisherSpringer. The Journal's web site is located at http://www.springer.com/biomed/human+physiology/journal/421en_HK
dc.relation.ispartofEuropean Journal of Applied Physiologyen_HK
dc.subjectAccelerometeren_HK
dc.subjectComparisonen_HK
dc.subjectHeart rateen_HK
dc.subjectPedometeren_HK
dc.subjectValidationen_HK
dc.titleUsing three objective criteria to examine pedometer guidelines for free-living individualsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1439-6319&volume=104&spage=435&epage=444&date=2008&atitle=Using+three+objective+criteria+to+examine+pedometer+guidelines+for+free-living+individualsen_HK
dc.identifier.emailMacfarlane, DJ: djmac@hku.hken_HK
dc.identifier.authorityMacfarlane, DJ=rp00934en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00421-008-0789-4en_HK
dc.identifier.pmid18560880en_HK
dc.identifier.scopuseid_2-s2.0-51749120116en_HK
dc.identifier.hkuros152917en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-51749120116&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume104en_HK
dc.identifier.issue3en_HK
dc.identifier.spage435en_HK
dc.identifier.epage444en_HK
dc.identifier.eissn1439-6327-
dc.identifier.isiWOS:000259070300004-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridMacfarlane, DJ=7202978517en_HK
dc.identifier.scopusauthoridChan, D=15069538600en_HK
dc.identifier.scopusauthoridChan, KL=37004089600en_HK
dc.identifier.scopusauthoridHo, EYK=35937306100en_HK
dc.identifier.scopusauthoridLee, CCY=15069528400en_HK
dc.identifier.citeulike3427743-

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