Abstract
BackgroundAccurate assessment of physical activity in adolescents at population level is necessary. In Vietnam, the International Physical Activity Questionnaire (IPAQ) and Physical Activity Questionnaire for Adolescents (PAQA) have been validated against accelerometers for use in adolescents. However, these questionnaires were originally designed for adults and showed poor validity. This study aims to assess the reliability and validity of the Vietnamese Adolescent Physical Activity Recall Questionnaire (V-APARQ).MethodsOne hundred and sixty five students were recruited from four junior high schools in Ho Chi Minh City Vietnam in 2004. V-APARQ asked students to report their usual organised and non-organised physical activity during a normal week and moderate- (MPA), vigorous- (VPA and moderate-to-vigorous- (MVPA) physical activity were calculated. Reliability was assessed by test-retest (2 weeks apart). Construct validity was assess by 7-day accelerometry, following the completion of the first V-APARQ.ResultsThe construct validity of the V-APARQ showed Spearman correlation of 0.25 and 0.22 for the assessment of the questionnaire when compared to the accelerometer. Test-retest reliability showed a weighted Kappa of 0.75 and the intra-class correlation coefficient for MVPA was 0.57 for the whole group (MPA =0.37 and VPA = 0.62), and were higher in boys than girls. The Bland-Altman plots for reliability show a mean difference of 0.4 minutes (95 % CI = −3.2, 4.0) for daily MVPA (n = 146) and the limits of agreement were −42.6 to 43.4 mins/day. In boys MVPA was lower on the first, compared with second administration of V-APARQ while the reverse was observed among girls.ConclusionThe reliability and validity of the V-APARQ were low to fair, but are comparable to other self-report physical activity questionnaires used among adolescents. V-APARQ will be useful for population monitoring of change in physical activity among urban Vietnamese adolescents.
Highlights
Accurate assessment of physical activity in adolescents at population level is necessary
The median of time reported for moderate physical activity (MPA) was approximately 70 ~ 80 minutes and 11 minutes for vigorous physical activity (VPA) on the V-Adolescent Physical Activity Recall Questionnaire (APARQ), which was significantly more than the median time measured by the accelerometer (57 minutes and 3 minutes, respectively) (p < 0.001)
Correlation coefficients were stronger for VPA compared with MPA and moderate to vigorous physical activity (MVPA), and the coefficients were higher among boys compared with girls
Summary
Accurate assessment of physical activity in adolescents at population level is necessary. A wide range of objective and subjective methods have been used to measure physical activity behavior among children and adolescents Due to their low cost and ease of administration, self-report methods are the most commonly used in population monitoring of physical activity, but are prone to recall and social desirability bias [6]. In Vietnam, the International Physical Activity Questionnaire (IPAQ) and Physical Activity Questionnaire for Adolescents (PAQA) have been validated against accelerometers for use in Vietnamese adolescents. These questionnaires were originally designed for adults and showed “poor validity to be used as a population instrument in Vietnam” [7]. The purpose of this study was to determine the test–retest reliability and construct validity of a translated and culturally adapted version of APARQ (i.e., Vietnamese-APARQ or VAPARQ) for assessing MVPA among Vietnamese youth
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