摘要
Studies investigating correlates of physical activity(PA)using objective PA measurements among primary schoolaged children are limited in Asia,particularly Vietnam.This study examined psychosocial and environmental factors associated with PA among fifth-grade students in eight primary schools in Ho Chi Minh city,Vietnam.Bivariate analyses showed that for every month increase in students’age,an increase of 66 steps/day(p<0.05)was found;boys had 1442 more steps/day than girls(p<0.001);and students from lower income households had 1169 steps/day less than those from higher income households(p<0.01).For every unit increase in self-efficacy,perceived social influences,intention to be physically active,and parental support for PA,an increase of 220,200,522,and 117 steps/day(p<0.01)was found respectively.In multivariable analysis,only intention and parental support for PA remained significant(p<0.01).About 21%of variation in daily steps was explained by demographic characteristics and an additional 13%by psychosocial influences.In conclusion,intention to be physically active and parental support are important factors and should be considered when designing PA interventions in school/community-based settings.
