Lasting anywhere from mere seconds to 2/3 minutes, anaerobic exercises promote muscle growth and overall strength and endurance. The anaerobic effect brings about a scenario where the body demands more oxygen than the supply that is available and takes place only when you exert yourself at 84% of your heart rate at the very least. In turn, you can look forward to stronger muscles and an all-round slimmer and more toned body with a strengthened core. Anaerobic exercise is proven to be hugely superior to traditional cardio in terms of fat burning and your metabolism will soar as a result. There are many resources available on iFitness Programs website that provide step-by-step anaerobic routines. Tabata routines are a popular form of anaerobic exercise as well as isometrics and hill climbing.