WHO: Majority of adolescents worldwide are not sufficiently physically active, putting their current and future health at risk

The study, published in The Lancet Child & Adolescent Health journal and produced by researchers from the World Health Organization (WHO), finds that more than 80% of school-going adolescents globally did not meet current recommendations of at least one hour of physical activity per day – including 85% of girls and 78% of boys.

The study – which is based on data reported by 1.6 million 11 to 17-year-old students – finds that across all 146 countries studied between 2001-2016 girls were less active than boys in all but four (Tonga, Samoa, Afghanistan and Zambia).The assessment included all types of physical activity, such as time spent in active play, recreation and sports, active domestic chores, walking and cycling or other types of active transportation, physical education and planned exercise.

The authors say that levels of insufficient physical activity in adolescents continue to be extremely high, compromising their current and future health. “Urgent policy action to increase physical activity is needed now, particularly to promote and retain girls’ participation in physical activity,” says study author Dr Regina Guthold, WHO.

The health benefits of a physically active lifestyle during adolescence include improved cardiorespiratory and muscular fitness, bone and cardiometabolic health, and positive effects on weight. There is also growing evidence that physical activity has a positive impact on cognitive development and socializing. Current evidence suggests that many of these benefits continue into adulthood.

To achieve these benefits, the WHO recommends for adolescents to do moderate or vigorous physical activity for an hour or more each day.