• Genevieve N Healy, Bronwyn K Clark, Elisabeth A H Winkler, Paul A Gardiner, Wendy J Brown, and Charles E Matthews.
• School of Population Health, Cancer Prevention Research Centre, University of Queensland, Brisbane, Australia. g.healy@uq.edu.au
• Am J Prev Med. 2011 Aug 1; 41 (2): 216-27.

AbstractSedentary time (too much sitting) increasingly is being recognized as a distinct health risk behavior. This paper reviews the reliability and validity of self-reported and device-based sedentary time measures and provides recommendations for their use in population-based studies. The focus is on instruments that have been used in free-living, population-based research in adults. Data from the 2003-2006 National Health and Nutrition Examination Survey are utilized to compare the descriptive epidemiology of sedentary time that arises from the use of different sedentary time measures. A key recommendation from this review is that, wherever possible, population-based monitoring of sedentary time should incorporate both self-reported measures (to capture important domain- and behavior-specific sedentary time information) and device-based measures (to measure both total sedentary time and patterns of sedentary time accumulation).Copyright © 2011 American Journal of Preventive Medicine. All rights reserved.

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