| Age and gender differences in objectively measured physical activity in youth. | |
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MedLine Citation:
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PMID: 11828247 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The purpose of this study was to evaluate age and gender differences in objectively measured physical activity (PA) in a population-based sample of students in grades 1-12. METHODS: Participants (185 male, 190 female) wore a CSA 7164 accelerometer for 7 consecutive days. To examine age-related trends, students were grouped as follows: grades 1-3 (N = 90), grades 4-6 (N = 91), grades 7-9 (N = 96), and grades 10-12 (N = 92). Bouts of PA and minutes spent in moderate-to-vigorous PA (MVPA) and vigorous PA (VPA) were examined. RESULTS: Daily MVPA and VPA exhibited a significant inverse relationship with grade level, with the largest differences occurring between grades 1-3 and 4-6. Boys were more active than girls; however, for overall PA, the magnitudes of the gender differences were modest. Participation in continuous 20-min bouts of PA was low to nonexistent. CONCLUSION: Our results support the notion that PA declines rapidly during childhood and adolescence and that accelerometers are feasible alternatives to self-report methods in moderately sized population-level surveillance studies. |
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Authors:
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Stewart G Trost; Russell R Pate; James F Sallis; Patty S Freedson; Wendell C Taylor; Marsha Dowda; John Sirard |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Medicine and science in sports and exercise Volume: 34 ISSN: 0195-9131 ISO Abbreviation: Med Sci Sports Exerc Publication Date: 2002 Feb |
Date Detail:
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Created Date: 2002-02-05 Completed Date: 2002-03-19 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8005433 Medline TA: Med Sci Sports Exerc Country: United States |
Other Details:
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Languages: eng Pagination: 350-5 Citation Subset: IM; S |
Affiliation:
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School of Human Movement Studies, University of Queensland, Brisbane, Australia. strost@hms.uq.edu.au |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Activities of Daily Living* Adolescent Age Distribution Child Exercise / physiology* Female Humans Life Style Male Massachusetts / epidemiology Monitoring, Physiologic / instrumentation, methods* Schools Sex Distribution Sports / statistics & numerical data Students / statistics & numerical data* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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