Celebrity personal trainer Mark Anthony has sold his flagship budget gym in Aylesbury, Buckinghamshire, to fitness chain The Gym Group for an undisclosed sum.

The sale of the 13,000sq ft (1,208sq m) Rush Fitness club comes just four months after Anthony sold his Uxbridge and Southend-on-Sea gyms to Swansea-based leisure trust Bay Leisure.

Anthony, who previously owned a club in Notting Hill, London, where he trained celebrity clients including Katie Price, Billie Piper and Lucy Mecklenburgh, is planning to launch a boutique group fitness brand called FirstLight in the capital.

“We've thoroughly enjoyed operating health and fitness gyms in the low-cost sector for the past three years," he said.

"Having sold our clubs in Uxbridge and Southend, we're now delighted to pass the Aylesbury Club to The Gym Group and we're sure they'll make it even more successful.”

Rush Fitness Aylesbury was a 24/7 gym, offering more than 50 classes each week, cardio equipment and a free weights training area.

The club, in Friars Square Shopping Centre, will be closed until 14 December while it is rebranded.

Nick Henwood, The Gym Group operations director, said: “Our aim is to offer the best value low-cost gym in town, giving great service to our members. We look forward to making sure existing Rush members are looked after, as well as welcoming lots of new members.”

The acquisition by The Gym Group follows its purchase of 18 Lifestyle Fitness gyms in September.