We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The Feasibility of Reducing and Measuring Sedentary Time among Overweight, Non-Exercising Office Workers.
- Authors
Kozey-Keadle, Sarah; Libertine, Amanda; Staudenmayer, John; Freedson, Patty
- Abstract
This study examined the feasibility of reducing free-living sedentary time (ST) and the convergent validity of various tools to measure ST. Twenty overweight/obese participants wore the activPAL (AP) (criterion measure) and ActiGraph (AG; 100 and 150 count/minute cut-points) for a 7-day baseline period. Next, they received a simple intervention targeting free-living ST reductions (7-day intervention period). ST was measured using two questionnaires following each period. ST significantly decreased from 67% of wear time (baseline period) to 62.7% of wear time (intervention period) according to AP (n = 14, P < 0.01). No other measurement tool detected a reduction in ST. The AG measures were more accurate (lower bias) and more precise (smaller confidence intervals) than the questionnaires. Participants reduced ST by ~5%, which is equivalent to a 48&#95;min reduction over a 16-hour waking day. These data describe ST measurement properties from wearable monitors and self-report tools to inform sample-size estimates for future ST interventions.
- Publication
Journal of obesity, 2012, Vol 2012, p282303
- ISSN
2090-0716
- Publication type
Journal Article
- DOI
10.1155/2012/282303