The Feasibility of Reducing and Measuring Sedentary Time among Overweight, Non-Exercising Office Workers
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 per...
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Language: | English |
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Wiley
2012-01-01
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Series: | Journal of Obesity |
Online Access: | http://dx.doi.org/10.1155/2012/282303 |
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author | Sarah Kozey-Keadle Amanda Libertine John Staudenmayer Patty Freedson |
author_facet | Sarah Kozey-Keadle Amanda Libertine John Staudenmayer Patty Freedson |
author_sort | Sarah Kozey-Keadle |
collection | DOAJ |
description | 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_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. |
format | Article |
id | doaj-art-8aaea127659e4783937747bbad778339 |
institution | Kabale University |
issn | 2090-0708 2090-0716 |
language | English |
publishDate | 2012-01-01 |
publisher | Wiley |
record_format | Article |
series | Journal of Obesity |
spelling | doaj-art-8aaea127659e4783937747bbad7783392025-02-03T05:51:37ZengWileyJournal of Obesity2090-07082090-07162012-01-01201210.1155/2012/282303282303The Feasibility of Reducing and Measuring Sedentary Time among Overweight, Non-Exercising Office WorkersSarah Kozey-Keadle0Amanda Libertine1John Staudenmayer2Patty Freedson3Department of Kinesiology, University of Massachusetts, Amherst, MA 01003, USADepartment of Kinesiology, University of Massachusetts, Amherst, MA 01003, USADepartment of Mathematics and Statistics, University of Massachusetts, Amherst, MA 01003, USADepartment of Kinesiology, University of Massachusetts, Amherst, MA 01003, USAThis 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_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.http://dx.doi.org/10.1155/2012/282303 |
spellingShingle | Sarah Kozey-Keadle Amanda Libertine John Staudenmayer Patty Freedson The Feasibility of Reducing and Measuring Sedentary Time among Overweight, Non-Exercising Office Workers Journal of Obesity |
title | The Feasibility of Reducing and Measuring Sedentary Time among Overweight, Non-Exercising Office Workers |
title_full | The Feasibility of Reducing and Measuring Sedentary Time among Overweight, Non-Exercising Office Workers |
title_fullStr | The Feasibility of Reducing and Measuring Sedentary Time among Overweight, Non-Exercising Office Workers |
title_full_unstemmed | The Feasibility of Reducing and Measuring Sedentary Time among Overweight, Non-Exercising Office Workers |
title_short | The Feasibility of Reducing and Measuring Sedentary Time among Overweight, Non-Exercising Office Workers |
title_sort | feasibility of reducing and measuring sedentary time among overweight non exercising office workers |
url | http://dx.doi.org/10.1155/2012/282303 |
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