Physical activity is inversely associated with high blood pressure independently of overweight in Brazilian adolescents.

The purpose of this study was to assess the relationship between blood pressure (BP) levels and physical activity (PA) domains accounting for overweight/obesity. Adolescents aged 10 to 17 years old were recruited (n = 1021). International Obesity Task Force (IOTF) criteria were used to define overweight and obesity. High BP was defined using the Center of Disease Control and Prevention criteria. Different domains of PA (school activities, sport out of school, and leisure time PA) were assessed using a validated questionnaire. The prevalence of overweight/obesity was 21.9% for boys and 14.8% for girls. Some 13.4% of boys and 10.2% of girls, respectively, had high blood pressure (HBP). A strong and positive association was found between overweight and HBP. After adjustment for body mass index (BMI), total PA was inversely associated with BP. When all PA domains were entered simultaneously in a regression model, and after adjustment for BMI, only sport out of school was significantly and inversely associated with systolic BP [β: -0.82 (-1.50; -0.13)]. These findings open avenue for the early prevention of HBP by the prevention of obesity and promotion of PA.

Forensic science on trial - what is the law of the land ?

Based on a plenary lecture presented at the Tenth ANZFSS meeting of Forensic science in Sydney (September 2010), this article identifies some of the difficulties arising from the confrontation of forensic science with the law : a science defined by its specialities rather its object (the trace) and through the eyes of the law rather than those of science. This situation has historical roots that are highlighted and potential solutions for the future lie in fundamental and cultural developments within forensic science itself.

Fathers of girls, fathers of boys: influence of child's gender on fathers' experience of, engagement in, and representations of paternity.

The aim of this study was to examine the influence of child's gender on several dimensions-of paternity: the fathers' personal experience of paternity, their involvement in child rearing, and their representations. A total of 147 Swiss fathers of 18-month-old children (65 girls and 82 boys) relationship to the child or relationship with the child's completed questionnaires. The child's gender had little influence on paternal experience, mother. Globally, the fathers took on few responsibilities which were largely devolved to mothers. Fathers of boys were more involved in child care than fathers of girls. Finally, a discrepancy was found between the fathers representations of paternal roles in rearing girls and boys and the actual level of responsibility that fathers adopted in their relationship with their child.