Accelerometry data from the National Health and Nutrition Examination Study confirms what has been suspected from self-report: after adolescence, people in the United States are very inactive. With age, even this modest activity declines further. Accelerometry data was collected on a subsample of participants from the Health, Aging, and Body Composition study in the final (tenth) year of clinical examination. We are working with this data to study the paterns of true daily activity in older adults. Additionally, we have collected accelerometry and sleep data in a subsample of participants from the Age, Gene/Environment Susceptibility Study in Iceland. Also, as part of this project, we will compare measurements from accelerometers worn at various locations on the body while eldery participants conduct activities of daily living. And, finally, we are testing the use of accelerometers to assess recovery of function after surgery in the elderly.

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Investigator-Initiated Intramural Research Projects (ZIA)
Project #
1ZIAAG006020-06
Application #
8736687
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
6
Fiscal Year
2013
Total Cost
$183,683
Indirect Cost
Name
National Institute on Aging
Department
Type
DUNS #
City
State
Country
Zip Code
Arnardottir, Nanna Yr; Koster, Annemarie; Domelen, Dane R Van et al. (2016) Association of change in brain structure to objectively measured physical activity and sedentary behavior in older adults: Age, Gene/Environment Susceptibility-Reykjavik Study. Behav Brain Res 296:118-24
Schrack, Jennifer A; Cooper, Rachel; Koster, Annemarie et al. (2016) Assessing Daily Physical Activity in Older Adults: Unraveling the Complexity of Monitors, Measures, and Methods. J Gerontol A Biol Sci Med Sci 71:1039-48
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Steeves, Jeremy A; Tudor-Locke, Catrine; Murphy, Rachel A et al. (2015) Classification of occupational activity categories using accelerometry: NHANES 2003-2004. Int J Behav Nutr Phys Act 12:89
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Shiroma, Eric J; Kamada, Masamitsu; Smith, Colby et al. (2015) Visual Inspection for Determining Days When Accelerometer Is Worn: Is This Valid? Med Sci Sports Exerc 47:2558-62
Martin, Kathryn R; Koster, Annemarie; Murphy, Rachel A et al. (2014) Changes in daily activity patterns with age in U.S. men and women: National Health and Nutrition Examination Survey 2003-04 and 2005-06. J Am Geriatr Soc 62:1263-71
van der Berg, Julianne D; Bosma, Hans; Caserotti, Paolo et al. (2014) Midlife determinants associated with sedentary behavior in old age. Med Sci Sports Exerc 46:1359-65

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