Sports editor Ashley Loveridge was making his way back from Forest Green's media day and spotted a human kangaroo having fun with the summer’s most bizarre fitness trend.

Kangoo Jumps are fastened like roller blades or ski boots, with quick-release buckles and sturdy straps. Once they’re on, you need to do a little march on the spot to get yourself used to the sensation, which feels rather like jogging on a trampoline.

The boots were first created in the Nineties by a Swiss entrepreneur called Denis Naville and he has been gradually developing them ever since.

Manufacturers claim they protect your knees and other joints when exercising by taking away up to 80 per cent of the impact, and increase endurance and improve weight loss.

Watch Stroud marathon runner David Michael demonstrating the spring-loaded sole, which look set to be the summer's most bizarre fitness trend.