Sales of trampolines have grown by more than three times in a craze sparked by celebrities such as Madonna and Victoria Beckham, a supermarket said today.

Both the full-size and smaller versions, trampettes, have seen an increase of 70% year-on-year, according to Tesco Direct.

This summer its sales of 10ft and 12ft trampolines rose by 355% compared to the same period last year.

Trampoline coach for British Gymnastics, Anne-Sonia King who also runs a trampolining academy, said: "I would definitely recommend trampolining as it increases strength and fitness of the muscles, reduces cholesterol and helps to keep you fit and healthy. Classes at my academy are getting more and more popular - it's definitely a rising trend."

An hour of bouncing on a trampoline can burn more than 200 calories.

Heather Newing, Health and Fitness Buying Manager at Tesco said: "Trampettes seem to be taking off in a big way; they're a great way to exercise and lots of fun too."

Madonna and actress Gwyneth Paltrow have reportedly included aerobics on trampettes as part of their exercise regimes, and Posh Spice is also apparently a fan of the practice.