BACKGROUND Adolescence is a critical stage for bone accrual. It is also decisive for the establishment of behaviors such as smoking and alcohol drinking. OBJECTIVE To quantify the short- and long-term associations between smoking and drinking initiation and bone mineral density in adolescent girls. METHODS We used prospective data from 731 girls identified in public and private schools in P...

PURPOSE For decades, researchers have proclaimed the positive psychosocial benefits of participation in physical activity. However, recent meta-analyses of the literature have found infrequent and inconclusive empirical support for the link between physical activity and psychosocial well-being. In this study, we use data from a longitudinal study to explore the links between participation in ph...

In this study, a sizing system is proposed specifically for school-aged children in Malaysia. The sampling frame is based on the female population in the age group 7-17. For this study, 1001girls have been selected randomly from 29 different schools in urban and rural districts of Malaysia. Principal component analysis is used for key dimensions determination. Data mining has been done to devel...

The purpose of this study was to determine whether levels of interleukin-6 (IL-6) in childhood are related to insulin resistance in adolescence. Further, to explore how fatness and cardiorespiratory fitness (VO(2peak)) moderate this relationship. Methods. 292 nine-year-old children (n = 292) were followed for 4 years. Anthropometrics and VO(2peak) were measured. Fasting blood samples were analy...

BACKGROUND Overweight prevalence among Guatemalan girls is higher in public than in private schools. Little is known about adolescent girls' perceptions of the right ways to achieve a healthy weight. This study examines public and private school adolescent girls' perceptions of a "healthy weight," and barriers and facilitators to achieving it. METHODS We conducted 4 focus groups in public and...

BACKGROUND The purpose of this study was to examine the association between weight status and exposure to bullying among 11-, 13- and 15-year-old Danish school children. Furthermore, the purpose was to investigate the potentially mediating effect of body image. METHODS Data from the Danish contribution to the international cross-sectional research project Health Behaviour in School-aged Child...

BACKGROUND Information on the relationship between sleep duration and obesity among children in urban Guangzhou, China is limited. This study aims to examine the relationship between sleep duration and obesity in children aged 6-18 years. METHODS The sample consisted of 11,830 children aged 6-18 years. The children were randomly selected from 13 schools in three urban districts of Guangzhou. ...

The present study tried to determine if there are differences between temperament dimensions of boys and girls three five years old. sample includes 406 participants: 221 185 girls, from 9 pre-schools districts (Arequipa-Peru). was descriptive correlational, trying find the relationship in girls. Buss Plomin scale temperament: emotionality, activity sociability (shyness) (EAS), a demographic ca...