The findings reveal that the UK is above the global average of 14 per cent, but lags behind Finland at 28 per cent and Canada at 25 per cent.
While the UK is on a level with Sweden and Norway, with all three at 17 per cent, activity levels were found to be ahead of Germany on 13 per cent, France at 11 per cent and Italy at nine per cent.
International study
Researchers analysed 389 population-based surveys from 140 countries and territories, involving over 3.2 million adolescents, for the collaborative study between WHO and an international team of researchers.
Teenagers were asked to report how many of the past seven days they had been active – defined as taking part in at least 60 minutes of moderate-to-vigorous physical activity, the kind that gets you out of breath.
The team found on average, UK adolescents are active on only four days a week, with just under one in four reporting three or fewer active days.
Activity rates
The study also revealed stark differences between genders, with 21 per cent of UK boys active for 60 minutes every day, compared with 13 per cent of girls.
Activity levels also declined with age. On average, 11-year-olds reported 4.6 active days per week while 17-year-olds reported 3.6.
In almost every country and region in the study, girls were less active than boys. Globally, 28 per cent of girls reported no active days, compared with 22 per cent of boys. Only 11 per cent of girls reported being active every day, compared with 17 per cent of boys.
Lead author Dr Tessa Strain, of the University’s Moray House School of Education and Sport says more can be done to support activity in the UK.