| This study evaluates the Quantification de L'Activite Physique
en Altitude chez les Enfants (QAPACE) supervised self-administered
questionnaire reproducibility and validity on the estimation of the
mean daily energy expenditure (DEE) on Bogotá's schoolchildren. The
comprehension was assessed on 324 students, whereas the reproducibility
was studied on a different random sample of 162 who were exposed twice
to it. Reproducibility was assessed using both the Bland-Altman plot
and the intra-class correlation coefficient (ICC). The validity was
studied in a sample of 18 girls and 18 boys randomly selected, which
completed the test - re-test study. The DEE derived from the questionnaire
was compared with the laboratory measurement results of the peak oxygen
uptake (Peak VO2) from ergo-spirometry and Leger Test.
The reproducibility ICC was 0.96 (95% C.I. 0.95-0.97); by age categories
8-10, 0.94 (0.89-0. 97); 11-13, 0.98 (0.96- 0.99); 14-16, 0.95 (0.91-0.98).
The ICC between mean TEE as estimated by the questionnaire and the
direct and indirect Peak VO2 was 0.76 (0.66) (p<0.01);
by age categories, 8-10, 11-13, and 14-16 were 0.89 (0.87), 0.76 (0.78)
and 0.88 (0.80) respectively. The QAPACE questionnaire is reproducible
and valid for estimating PA and showed a high correlation with the
Peak VO2 uptake.
KEY
WORDS: Physical
activity, questionnaire, validity, children, adolescents.
|
