DW Fitness First is introducing a new water-based HIIT class in order to cater to the public's increasing demand for innovative, intensive group exercise classes.

H2O HIIT will be piloted at select DW Fitness First clubs across the UK during October and will combine 'high octane' functional training with a swimming pool environment.

"H2O HIIT will revolutionise water-based exercise classes," a spokesperson for the operator said.

"It will offer an intense and high-calorie burning class, filled with HIIT moves revitalised for the pool.

"It may sound simple, but with new equipment – including pool dumbbells, boxing gloves and traditional kickboards and noodles – it’ll be a challenge for members."

The classes will use five circuit stations, each with a specific focus, including resistance, cardio, fight, core and a beep-test format called AMLAP (as many lengths as possible).

Different apparatus will be used to create resistance in the water.