I am interested in it, but very unsure of how due to my pelvic floor. Sounds like a bike would be the way to go ( have been told bikes, rowing machines are great, but not running and jogging).

I was doing a form of HIIT with some DVD workouts I was following, it was referred to as Tabata. I was losing weight when I was doing those DVD's. I can go back to them, but have to modify some of the exercises.