Journal Articles
Abstract:
OBJECTIVE: 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*