Forget everything you think you know about high-intensity workouts. Because this INSANITY class turns old-school interval training on its head.
With INSANITY, you work flat out in 3 to 5-minute blocks, and take breaks only long enough to gulp some air and get right back to work. It's called Max Interval Training, because it keeps your body working at maximum capacity through your entire workout. You keep pushing your limits – so your body has to adapt. Make no mistake, this will be the hardest workout you have ever experienced but the results will quickly follow.
Turn right out of St John's Wood Station onto Finchley Road/A41. Follow the road up and the sports centre entrance will be on the left hand side. Access only on Finchley Road/A41