For convergent validity ( i.e. , the relationship between PAQs and other measures ) , similar overall associations were found between Past-week PAQs and Usual-week PAQs .
However , PAQs were more strongly associated with direct measures of physical activity ( e.g. , accelerometer ) than indirect measures of physical activity ( i.e. , physical fitness ) , irrespective of recall methods .
Only a few interview-administered PAQs exhibited positive ratings for a single psychometric property , although the other properties were either rated as poor or question able , demonstrating the limitations of current PAQs .
Reproducibility of the Veterans Physical Activity Questionnaire in an elderly population.
BACKGROUND Quantifying lifetime physical activity using self-reported measures is challenging due to reliance on recall , especially in older population s. The purpose of this study was to determine the 1-year reproducibility of the Veterans Physical Activity Question naire ( VAPAQ ) in a cohort of patients with documented abdominal aortic aneurysm disease ( AAA ) . METHODS Subjects included men ( n = 52 ) and women ( n = 3 ) enrolled in AAA STOP , a r and omized trial design ed to test the ability of supervised exercise training to modify AAA biology and early disease progression . RESULTS The overall correlation coefficient for lifetime recreational energy expenditure between the 2 examinations was 0.93 ( P < .001 ) , with an overall difference of 26 kcal/week , a typical error ( st and ard deviation of the differences ) of 171 kcals/week , and a coefficient of variation ( CV ) of 15.5 % . CONCLUSIONS The VAPAQ is a reproducible tool to quantify lifetime energy expenditure in older adults with documented vascular disease
For convergent validity ( i.e. , the relationship between PAQs and other measures ) , similar overall associations were found between Past-week PAQs and Usual-week PAQs .
However , PAQs were more strongly associated with direct measures of physical activity ( e.g. , accelerometer ) than indirect measures of physical activity ( i.e. , physical fitness ) , irrespective of recall methods .
Only a few interview-administered PAQs exhibited positive ratings for a single psychometric property , although the other properties were either rated as poor or question able , demonstrating the limitations of current PAQs .