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Changes in daily activity patterns with age in U.S. men and women: National Health and Nutrition Examination Survey 2003-04 and 2005-06.


ABSTRACT: OBJECTIVES:To compare daily and hourly activity patterns according to sex and age. DESIGN:Cross-sectional, observational. SETTING:Nationally representative community sample: National Health and Nutrition Examination Survey (NHANES) 2003-04 and 2005-06. PARTICIPANTS:Individuals (n = 5,788) aged 20 and older with 4 or more valid days of monitor wear-time, no missing data on valid wear-time minutes, and covariates. MEASUREMENTS:Activity was examined as average counts per minute (CPM) during wear-time; percentage of time spent in nonsedentary activity; and time (minutes) spent in sedentary (<100 counts), light (100-759), and moderate to vigorous physical activity (MVPA (? 760)). Analyses accounted for survey design, adjusted for covariates, and were sex specific. RESULTS:In adjusted models, men spent slightly more time (~1-2%) in nonsedentary activity than women aged 20 to 34, with levels converging at age 35 to 59, although the difference was not significant. Women aged 60 and older spent significantly more time (~3-4%) in nonsedentary activity than men, despite similarly achieved average CPM. With increasing age, all nonsedentary activity decreased in men; light activity remained constant in women (~30%). Older men had fewer CPM at night (~20), more daytime sedentary minutes (~3), fewer daytime light physical activity minutes (~4), and more MVPA minutes (~1) until early evening than older women. CONCLUSION:Although sex differences in average CPM declined with age, differences in nonsedentary activity time emerged as men increased sedentary behavior and reduced MVPA time. Maintained levels of light-intensity activity suggest that women continue engaging in common daily activities into older age more than men. Findings may help inform the development of behavioral interventions to increase intensity and overall activity levels, particularly in older adults.

SUBMITTER: Martin KR 

PROVIDER: S-EPMC4115191 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature

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Changes in daily activity patterns with age in U.S. men and women: National Health and Nutrition Examination Survey 2003-04 and 2005-06.

Martin Kathryn R KR   Koster Annemarie A   Murphy Rachel A RA   Van Domelen Dane R DR   Hung Ming-yang MY   Brychta Robert J RJ   Chen Kong Y KY   Harris Tamara B TB  

Journal of the American Geriatrics Society 20140624 7


<h4>Objectives</h4>To compare daily and hourly activity patterns according to sex and age.<h4>Design</h4>Cross-sectional, observational.<h4>Setting</h4>Nationally representative community sample: National Health and Nutrition Examination Survey (NHANES) 2003-04 and 2005-06.<h4>Participants</h4>Individuals (n = 5,788) aged 20 and older with 4 or more valid days of monitor wear-time, no missing data on valid wear-time minutes, and covariates.<h4>Measurements</h4>Activity was examined as average co  ...[more]

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