search www.ncbi.nlm.nih.gov.Journal Articles
- Warner, ET; Wolin, KY; Duncan, DT; Heil, DP; Askew, S; Bennett, GG, Differential accuracy of physical activity self-report by body mass index.,
American journal of health behavior, vol. 36 no. 2
(March, 2012),
pp. 168-178, ISSN 1087-3244 [doi]
(last updated on 2024/04/17)
Abstract:
Objectives
To examine whether agreement between self-reported and accelerometer-measured physical activity varies by BMI category in a low-income black sample.Methods
Participants completed a questionnaire and wore an accelerometer for 4-6 days. Using one- and 10-minute bouts, accelerometers measured light, moderate, and vigorous physical activity time.Results
Correlations varied by obesity (nonobese: one-minute r=0.41; 10-minute r=0.47; obese: one-minute r=0.21; 10-minute r=0 .14). Agreement was highest among nonobese persons (one-minute kappa = 0.48, 10-minute kappa = 0.023; obese: one-minute kappa = -0.024, 10- minute kappa = -0.020).Conclusions
We found compromised questionnaire performance among obese participants.
Keywords:
Actigraphy • Adult • Body Mass Index • Exercise* • Female • Humans • Male • Middle Aged • Obesity • Questionnaires • Reproducibility of Results • Self Report • United States • Young Adult • epidemiology • physiopathology • standards • standards*
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