The indoor bike you see at The Ultimate Fighter (TUF), the one with the moving handles, is the Schwinn AD6 Airdyne Exercise Bike. Why do MMA fighters love the Airdyne so much? One reason might be that professional fighters like the push hard, and with the Airdyne, the harder you pedal the harder the resistance and the stream of air created cools your body so you can push harder and longer, thanks to the unique air resistance system. Often in TUF, it is used to cut weight fast - the Airdyne works your upper and lower body simultaneously or independently and you can monitor of calories you've burned so far as you pedal. The console continuously shows 5 other workout metrics so you know how you're doing in real time.