Given the global impact of coronavirus disease 2019 (COVID-19) on mental and physical health, we examined young adults' changes in mental health, intimate relationship quality, alcohol use and weight-related behaviors during COVID-19 and their correlates (depressive symptoms, resilience, social context and COVID-19-related factors). We analyzed…

This study analyzed psychosocial predictors of the Theory of Planned Behavior (TPB) and Self-Determination Theory (SDT) and evaluated their associations with short- and long-term moderate plus vigorous physical activity (MVPA) and lifestyle physical activity (PA) outcomes in women who underwent a weight-management program. 221 participants (age…

Identifying factors that contribute to students' behavior and weight improvements during school-based obesity prevention interventions is critical for the development of effective programs. The current study aims to determine whether the support and resources that adolescent girls received from their families were associated with improvements in…

This national study examined student breakfast consumption and nutritional quality of breakfast in 2000 and 2006 by gender, school grade, school socioeconomic status (SES) and weight status after the implementation of a national breakfast promotion campaign. Participants were 4237 schoolchildren in grades 2-12 from 32 schools in 2000 and 5645…

The purpose was to investigate whether clusters--based on physical activity (PA) and eating habits--can be found among children, and to explore subgroups' characteristics. A total of 1725 10-year olds completed a self-administered questionnaire. K-means cluster analysis was based on the weekly quantity of vigorous and moderate PA, the excess index…

Interest in the relationship between health behaviours and academic achievement has recently intensified in the face of an epidemic of childhood and adolescent obesity and converging school reforms in the United States and other nations with advanced economies. Epidemiologic research has demonstrated that poor diet and lack of adequate physical…

Exercise has an important role to play in the prevention of child and adolescent obesity. Recent school-based interventions have struggled to achieve meaningful and lasting changes to exercise levels. Theorists have suggested that this may, in part, be due to the failure to incorporate psychosocial mediators as they relate to behaviour change.…