It’s a cardio exercise with a strong focus on intervals. The setup is a gym with a stepper, treadmill, cross-trainer, cardio bike, rowing machine, and an Arc Trainer from Cybex, but you can use a cardio setup of your own choice.

Essentially it’s quite simple and goes like this. Start on any machine and rotate through the other machines until you’ve done them all in the following way:

1. 1 minute of hard workout, 1 minute relax
2. 45 second hard workout, 45 seconds relax
3. 30 seconds hard workout, 30 seconds relax
4. 15 seconds hard workout, 15 seconds relax
5. Move to next piece of equipment
6. Repeat

This is tough and I wouldn’t recommend doing this if you’re just picking up working out. Do it if you want to increase your cardiovascular capacity, burn more fat than with longer – lower intensity exercises, and increase performance. Enjoy the ride…