The study found that the greatest decreases in boys being insufficiently active were Bangladesh - from 73 per cent to 63 per cent, Singapore (78 per cent to 70 per cent), Thailand (78 per cent to 70 per cent), Benin (79 per cent to 71 per cent), Ireland (71 per cent to 64 per cent), and the U.S. (71 per cent to 64 per cent).
Overall, 80% of school-going adolescents did not meet the current recommendations of at least one hour of physical activity per day in 2016. There is growing evidence that it helps cognitive development, as well as social and motor skills "This is not the good start in life that we would want for our children and adolescents", said Bull. Current evidence suggests that many of these benefits continue into adulthood.
The study uses data which was collected from 1.6 million teenagers aged between 11-17 and from 146 countries over the period of 2001-2016. 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.More news: Harvard-Yale game delayed by student protest; 20-30 arrested
"Policymakers and stakeholders should be encouraged to act now for the health of this and future young generations", Bull said. The change ranges from a 2-percentage-point decline in Singapore from 85 percent to 83 percent, to a 1-percentage-point increase in Afghanistan.
In Ireland, 64% of boys fail to meet the physical daily activity recommendation, a fall from the 71% in 2001.
While India and Bangladesh see a strong focus on sports like cricket, in the US, physical education in schools, extensive media coverage of games and good availability of sports clubs have motivated youths to indulge in more physical activity.
Although Bangladesh had the lowest levels of inactivity for boys and girls, figures showed that two in three children (66%) were not doing an hour a day of exercise.More news: Midnight coup: Ajit Pawar rebels, ditches uncle to back BJP govt
The initiative targeted "a 15% relative reduction of global prevalence of insufficient physical activity by 2030 among adolescents and adults". This target was agreed to by all countries at the World Health Assembly in 2018.
According to the study, physical activity trends show slight improvement for boys, none for girls.
When examining by region, high-income Asia Pacific countries reported the highest prevalence on insufficient inactivity in 2016 for boys (89.0%, 62.8-92.2) and girls (95.6%, 73.7-97.9). In India and Bangladesh especially, major focus is given on sports and hence, the percentage is better in these countries.More news: Sadio Mane heaps praise on Liverpool boss Jurgen Klopp