Budget fitness chain Pure Gym has announced that it has re-appointed company founder Peter Roberts as the new chief executive.

Roberts, who moves from the role of deputy chair, takes over from Tony Harris who is leaving by mutual agreement after six months in the role. Roberts founded the company in 2008 and the chain has since grown to 38 clubs in the UK.

"I would like to thank Tony for his time with us," Roberts said. "His hard work and corporate discipline have been much appreciated and I wish him well in his next venture.

"I'm very pleased to be stepping back into the role of CEO to continue to drive the business forward as a market leader in the affordable fitness sector."

According to Pure Gym's financial reports, turnover in the year to February 2012 was £16.4m, up from £6.3m in the previous year. EBITDA was £5.2m, up from £1.5m in 2011.