tailieunhanh - Báo cáo khoa hoc:" Validity of self-reported leisure-time sedentary behavior in adolescents"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Validity of self-reported leisure-time sedentary behavior in adolescents | Affuso et al. Journal of Negative Results in BioMedicine 2011 10 2 http content 10 1 2 r M 1 JOURNAL OF NEGATIVE RESULTS IN BIOMEDICINE RESEARCH Open Access Validity of self-reported leisure-time sedentary behavior in adolescents Olivia Affuso1 June Stevens2 Diane Catellier3 Robert G McMurray4 Dianne S Ward5 Leslie Lytle6 Melinda S Sothern7 Deborah R Young8 Abstract Background To evaluate the concordance between leisure-time sedentary behavior in adolescents assessed by an activity-based questionnaire and accelerometry. A convenience sample of 128 girls and 73 boys 11-15 years of age years from six states across the United States examined as part of the feasibility studies for the Trial of Activity in Adolescent Girls TAAG . Three days of self-reported time spent watching TV videos using computers playing video computer games and talking on the phone was assessed using a modified version of the Self-Administered Physical Activity Checklist SAPAC . Criterion measure of sedentary behavior was via accelerometry over three days using a cut point of 50 counts 30 sec-1 epoch. Comparisons between sedentary behavior by the two instruments were made. Results Adolescents generally underestimated minutes of sedentary behavior compared to accelerometry-measured minutes. The overall correlation between minutes of sedentary behavior by self-report and accelerometry was weak Spearman r 95 CI . Adjustment of sedentary minutes of behavior for total minutes assessed using either percentages or the residuals method tended to increase correlations slightly. However regression analyses showed no significant association between self-reported sedentary behavior and minutes of sedentary behavior captured via accelerometry. Discussion These findings suggest that the modified 3-day Self-Administered Physical Activity Checklist is not a reliable method for assessing sedentary behavior. It is recommended that until validation studies for self-report .

TÀI LIỆU LIÊN QUAN
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.