Free one-hour group exercise classes in Hyde Park are expected to draw hundreds of would-be keep fit enthusiasts who have pledged to get healthy for 2013.

This Is Local London:

The taster events, organised by British Military Fitness, take place this Saturday, January 5, at 9.30am and 11.30am.

Meet 15 minutes before the start at the Serpentine Gallery car park off Exhibition Road.

Be prepared to work hard and have fun with experienced instructors available for all fitness levels.

Everyone who attends one of the free classes in January will also get:

• Chance to win free one year membership to British Military Fitness

• Free nutrition guide from The Food Doctor

• Discounts and special offers on fitness and nutrition products from The Food Doctor and Up & Running

Attention! British Military Fitness holds group fitness sessions around the country lead by instructors who are serving or ex-armed forces.