| Validity of the actical accelerometer step-count function in children. | |
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MedLine Citation:
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PMID: 21881156 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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This study sought to assess criterion validity of the Actical monitor step-count function in children via ankle and waist placement, compared with observed video recordings. Children attending a summer program (12 boys, 7 girls, mean age = 9.6yrs, range 7-11yrs) wore two synchronized Acticals, attached at the ankle (AA) and waist (AW). Children performed treadmill walking at varying speeds, and two research assistants counted steps using observed video recordings (OVR). Results showed high correlations for AW-OVR (r = .927, p < .001) and AA-OVR (r = .854, p < .001), but AW and AA were significantly lower than OVR (t > 11.2, p < .001). AW provided better step estimates than AA for step rates above 130 steps per minute. In contrast, AA was superior to AW for slow walking, and measured more steps during the (nontreadmill) program time. Overall, the Actical monitor showed good evidence of validity as a measure of steps in children for population-based studies. |
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Authors:
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Richard R Rosenkranz; Sara K Rosenkranz; Casey Weber |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Pediatric exercise science Volume: 23 ISSN: 1543-2920 ISO Abbreviation: Pediatr Exerc Sci Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-09-01 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8909729 Medline TA: Pediatr Exerc Sci Country: United States |
Other Details:
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Languages: eng Pagination: 355-65 Citation Subset: IM |
Affiliation:
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Kansas State University, Manhattan, KS, and University of Western Sydney, Campbelltown, NSW, Australia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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