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Am J Prev Med. 2011 Apr;40(4):454-61. doi: 10.1016/j.amepre.2010.12.016.

Physical activity in U.S.: adults compliance with the Physical Activity Guidelines for Americans.

Author information

  • 1Department of Health, Nutrition and Exercise Sciences, North Dakota State University, Fargo, North Dakota 58108-6050, USA. jared.tucker@ndsu.edu

Abstract

BACKGROUND:

To date, no study has objectively measured physical activity levels among U.S. adults according to the 2008 Physical Activity Guidelines for Americans (PAGA).

PURPOSE:

The purpose of this study was to assess self-reported and objectively measured physical activity among U.S. adults according to the PAGA.

METHODS:

Using data from the NHANES 2005-2006, the PAGA were assessed using three physical activity calculations: moderate plus vigorous physical activity ≥150 minutes/week (MVPA); moderate plus two instances of vigorous physical activity ≥150 minutes/week (M2VPA); and time spent above 3 METs ≥500 MET-minutes/week (METPA). Self-reported physical activity included leisure, transportation, and household activities. Objective activity was measured using Actigraph accelerometers that were worn for 7 consecutive days. Analyses were conducted in 2009-2010.

RESULTS:

U.S. adults reported 324.5 ± 18.6 minutes/week (M ± SE) of moderate physical activity and 73.6 ± 3.9 minutes/week of vigorous physical activity, although accelerometry estimates were 45.1 ± 4.6 minutes/week of moderate physical activity and 18.6 ± 6.6 minutes/week of vigorous physical activity. The proportion of adults meeting the PAGA according to M2VPA was 62.0% for self-report and 9.6% for accelerometry.

CONCLUSIONS:

According to the NHANES 2005-2006, fewer than 10% of U.S. adults met the PAGA according to accelerometry. However, physical activity estimates vary substantially depending on whether self-reported or measured via accelerometer.

Copyright © 2011 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.

PMID:
21406280
[PubMed - indexed for MEDLINE]
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