British Military Fitness (BMF) has introduced a new membership rate for people under the age of 21 years old in a bid to tackle levels of inactivity among teenagers.

The fitness provider has reported a 75 per cent increase in the number of people joining its under 21 membership scheme, which offers a monthly fee of £25 in London and £20 outside the capital. BMF marketing manager Barney Larkin said: "When we heard that the single biggest drop-off in physical activity is among school leavers aged 16, we decided to introduce a membership rate for under 21s allowing more youngsters to take part in our classes.

"With the growing issue of obesity, it is essential that we encourage everyone to adopt a healthier lifestyle. Tackling unhealthy food is one way of addressing the issue but exercising must also be a part of our daily routines."