Background Physical activity in adolescents is associated with short-and long-term health
benefits. Physical activity can occur in various domains and is influenced by a complex …

OBJECTIVE: To estimate the prevalence and identify correlates of physical activity among
adolescents. METHODS: Cross-sectional study nested within a cohort of 4,325 subjects from …

ABSTRACT OBJECTIVE: To estimate the prevalence of physical activity in adolescents and
to identify associated factors. METHODS: A cross-sectional study was conducted with a …

ABSTRACT OBJECTIVE: To estimate the proportion of physically active adolescents and
identify associated factors. METHODS: The sample was composed of 2,874 high school …

Objetive The aim of this study was to estimate the prevalence of low physical activity levels
and to identify related factors (sociodemographic, lifestyle and body weight status) in …

ABSTRACT OBJECTIVE: To analyze factors associated with physical activity and the mean
time spent in some sedentary activities among school-aged children. METHODS: A cross …

Background Although the effects of physical activity (PA) on health and wellness are well-
established, incorporating sedentary behaviours in the daily lives of populations from high …

Purpose To evaluate time trends in physical activity among adolescents aged 10 to 19 years
living in southern Brazil over a 7-year period. Methods Two population-based cross …

The aim of this study was to evaluate the association between levels of physical activity,
psychosocial and perceived environmental factors in adolescents from Northeastern Brazil …

Background The aim of this study was to document changes in physical activity of Brazilian
adults by comparing two surveys carried out 5 years apart. Methods Two population-based …