Gym chain Planet Fitness has raised its outlook for 2017 revenues to US$430m (€369.4m, £327.7m) following its third-quarter trading statement.

During the July to September period it opened 31 new franchises, taking its portfolio of clubs to 1,432 in the US, Puerto Rico, Canada and the Dominican Republic. It has 10.5 million members.

Revenues increased by 12.1 per cent to US$97.5m (€83.8m, £74.3m) during the three-month period, up from US$87m (€74.7m, £66.3m) in the same period last year.

A breakdown shows that franchise revenue increased 30.6 per cent to US$35.6m (€30.6m, £27.1m); turnover at its corporate-owned clubs rose 7.1per cent to US$28.6m (€24.6m, £21.8m); and its equipment segment revenue grew 0.8 per cent to US$33.4m (€28.7m, £25.5m).

As a result, the company has raised its revenue outlook for 2017 by US$15m (€12.9m, £11.4m) to US$430m.

“I believe we're just beginning to scratch the surface of the company’s full potential,” said Christopher Rondeau, the brand’s chief executive.

“My optimism is fuelled by the long runway for store growth, the financial and operational strength of our franchisees, our growing national advertising fund and ability to continue to attract casual and first-time gym users to our unique fitness experience, and the growing consumer shift towards health and wellness.”