Majority of adolescents worldwide don’t do enough physical activity

The first ever global trends for adolescent insufficient physical activity show that urgent action is needed to increase physical activity levels in girls and boys aged 11 to 17 years. 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 difference in the proportion of boys and girls meeting the recommendations was greater than 10 percentage points in almost one in three countries in 2016 (29%, 43 of 146 countries), with the biggest gaps seen in the United States of America and Ireland (more than 15 percentage points). Most countries in the study (73%, 107 of 146) saw this gender gap widen between 2001-2016.

he 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.

The authors estimated how many 11- to 17-year-olds do not meet this recommendation by analysing data collected through school-based surveys on physical activity levels. 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.

To improve levels of physical activity among adolescents, the study recommends that:

• Urgent scaling up is needed of known effective policies and programmes to increase physical activity in adolescents;
• Multisectoral action is needed to offer opportunities for young people to be active, involving education, urban planning, road safety and others;

The highest levels of society, including national, city and local leaders, should promote the importance of physical activity for the health and well-being of all people, including adolescents.

Photo: WHO SEARO/ Owens

Children and adolescents need to play, exercise and be active in order to be healthy ?⚽️?‍♂️⛹️‍♂️?‍♀️

To improve cardiorespiratory and muscular fitness, bone health, and cardiovascular and metabolic health biomarkers:

• Children and youth aged 5–17 should accumulate at least 60 minutes of moderate- to vigorous-intensity physical activity daily.
• Amounts of physical activity greater than 60 minutes provide additional health benefits.
• Most of the daily physical activity should be aerobic. Vigorous-intensity activities should be incorporated, including those that strengthen muscle and bone*, at least 3 times per week.

READ MORE: WHO

Antimicrobial stewardship programmes in health-care facilities in low- and middle-income countries. A WHO practical toolkit

New WHO report to bolster efforts to tackle leading causes of urban deaths

WHO mhGAP toolkit for community providers launched