The after-school period: a critical window for children’s health behaviours.

Children spend over half of the after-school period (end-of-school until 6pm) sedentary and one-fifth being active. However, this period makes a large contribution to daily physical activity levels and becomes more important as children transition into secondary school. Correlates of these behaviours differ suggesting intervention strategies should be behaviour specific.

Being a girl in wartime: Canadian children's religious magazines during the First World War

During the First World War, Canadian children were inducted into certain patterns of behavior based on their symbolic value as the future of Canada and as contributors to the British empire. After the advent of the war, Protestant religious denominations in Canada began using their existing children's publications, such as The King's Own (1900-1925) and Pleasant Hours (1881-1929), to encourage child readers to see the war in ways that reinforced the necessity of duty and sacrifice far both boys and girls. Fiction and correspondence in these publications reflect the magazines' engagement with the war and their efforts to show girls how they could contribute to the war effort. As such, they represent an important intervention into how Canadian girlhood was constructed and refined during wartime. Although girls' fiction in these magazines often emphasises domestic responsibilities, it also offers opportunities to mobilise these domestic skills to support the war effort. Other content within the magazines also presented practical ideas that could be implemented at home and at school, suggesting that girls' participation in the war effort could be easily understood and implemented. Moreover, girls' participation in these wartime activities contributed simultaneously to both national and imperial enterprises. Thus these two magazines represented Canadian feminine ideals within an imperial framework. Importantly, however, the dominant frame far these girlhood ideals is explicitly national. They are primarily understood to be helping Canadians through their wartime work.

Impact of an 8-month trial using height-adjustable desks on children's classroom sitting patterns and markers of cardio-metabolic and musculoskeletal health

During school hours, children can sit for prolonged and unbroken periods of time. This study investigated the impact of an 8-month classroom-based intervention focusing on reducing and breaking-up sitting time on children's cardio-metabolic risk factors (i.e., body mass index, waist circumference, blood pressure) and perceptions of musculoskeletal discomfort. Two Year-6 classes (24 students per class) in one primary school were assigned to either an intervention or control classroom. The intervention classroom was equipped with height-adjustable desks and the teacher was instructed in the delivery of pedagogical strategies to reduce and break-up sitting in class. The control classroom followed standard practice using traditional furniture. At baseline, and after 8-months, time spent sitting, standing, stepping, and sitting-bouts (occasions of continuous sitting) as well as the frequency of sit-to-stand transitions were obtained from activPAL inclinometers and the time spent in light-intensity physical activity was obtained from ActiGraph accelerometers. Demographics and musculoskeletal characteristics were obtained from a self-report survey. Hierarchical linear mixed models found that during class-time, children's overall time spent sitting in long bouts (>10 min) were lower and the number of sit-to-stand transitions were higher in the intervention group compared to the control group, while no changes were observed for musculoskeletal pain/discomfort. No significant intervention effects were found for the anthropometrics measures and blood pressure. Height-adjustable desks and pedagogical strategies to reduce/break-up sitting can positively modify classroom sitting patterns in children. Longer interventions, larger and varied sample size may be needed to show health impacts; however, these desks did not increase musculoskeletal pain/discomfort.