Get-fit-fast super class gyms are fast becoming all the rage, and there’s a new player in town. Lunge forward, F45 Training.

An Australian-born phenomenon, F45 Training, as the name suggests, focuses on intense 45 minute HIIT workouts that hit the body hard. Classes alternate each day from cardio to resistance-based training, but each follow a HIIT format.

Now F45 Training is popping up all over London, with the first opening on Tottenham Court Road. I couldn’t resist trying it out, so I signed up for a week’s trial. 7 days of HIIT, EEK!

I was nervous as hell on my first day; would I make it? Would I vomit? What if I couldn’t do something? But the friendly staff help put you at ease and the other members are all eager to help out newbies.