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J Phys Act Health. 2008;5 Suppl 1:S30-44.

Assessment of sedentary behavior with the International Physical Activity Questionnaire.

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  • 1Joint Doctoral Program in Clinical Psychology, San Diego State University, San Diego, CA 92182, USA.

Abstract

PURPOSE:

This study explored definitions of sedentary behavior and examined the relationship between sitting time and physical inactivity using the sitting items from the International Physical Activity Questionnaire (IPAQ).

METHODS:

Participants (N = 289, 44.6% male, mean age = 35.93) from 3 countries completed self-administered long- and short-IPAQ sitting items. Participants wore accelerometers; were classified as inactive (no leisure-time activity), insufficiently active, or meeting recommendations; and were classified into tertiles of sitting behavior.

RESULTS:

Reliability of sitting time was acceptable for men and women. Correlations between total sitting and accelerometer counts/min <100 were significant for both long (r = .33) and short (r = .34) forms. There was no agreement between tertiles of sitting and the inactivity category (kappa = .02, P = .68).

CONCLUSION:

Sedentary behavior should be explicitly measured in population surveillance and research instead of being defined by lack of physical activity.

PMID:
18364524
[PubMed - indexed for MEDLINE]
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