A study published in the International Journal of Behavioral Nutrition and Physical Activity looks at the results of an intervention aimed at improving the activity levels of adolescent girls.
The randomised controlled trial by Deirdre Harrington and colleagues took place in 20 secondary schools in Leicester. Ten schools received Girls Active and ten schools continued with usual practice. Developed by the Youth Sport Trust, Girls Active is focused on providing a support framework to schools to review their physical activity, sport, and PE teaching to ensure they are relevant and attractive to all adolescent girls, but with a particular focus on 11–14 year olds. The programme includes a range of resources for schools, including self-evaluation, training, mentoring, and funding for developing school capacity.
In total, 1,752 girls aged 11-14 participated. The primary outcome measure (at baseline, 7 months, and 14 months) was moderate to vigorous physical activity (MVPA), as recorded on wrist-worn accelerometers. Secondary outcomes included overall physical activity, light physical activity, sedentary time, body composition, and psychosocial outcomes. The results showed small improvements in MVPA in comparison with control schools after 7 months, but none after 14 months. Subgroup analysis showed that the intervention was effective at 14 months in larger schools, but caused an MVPA decrease in smaller schools. There was no pattern in the secondary outcomes, and any differences were slight.
Source: Effectiveness of the ‘Girls Active’ school-based physical activity programme: A cluster randomised controlled trial (April 2018) International Journal of Behavioral Nutrition and Physical Activity