A trampoline company has donated 20,000 free passes to schools to help the fight against childhood obesity.

Figures have revealed almost 40 per cent of London's children are overweight or obese with the highest rates occurring in the areas of greatest deprivation.

The UK's biggest trampoline park operator, Flip Out has given the free passes to schools in East London over the last three months.

Flip Out co-owner Richard Beese said: "More and more children are ending up overweight. The issue is getting out of hand and more needs to be done to encourage these kids to exercise.

"Combined our stores cater for over 2.5m customers a year and we like to think we are playing a vital role in tackling this national epidemic.

"It’s not always easy to get kids active but trampolining offers a perfect blend of fitness and fun. You’d be surprised how much easier it is to get kids up and active if they actually enjoy the exercise.

"Trampolining exercise is 68% more efficient than jogging and a 100% more fun. And when you’re all bounced out, there’s tones of other activities to keep you entertained."

Flip Out has 21 centres across the UK, including East Ham, with four more sites due to open soon.

Mr Beese added: "Bouncing on the spot improves balance, coordination and motor skills - all while putting a minimal amount of strain on bones. It strengthens joints, tendons and ligaments which also helps reduce the chances of suffering from arthritis."