Anaerobic exercise is the opposite of aerobic exercise.
Anaerobic literally means "without air", or "without oxygen." It refers to the energy exchange in muscles during short high intensity workouts. Anaerobic exercise is one where anaerobic metabolism is taking place. In a long exercise the glycogen supplies local to the muscle runs out and the body converts to aerobic metabolism; when aerobic metabolism is sustaining the workout it is an aerobic exercise. The early stages of all aerobic exercise is anerobic.
Examples of Anaerobic exercise include heavy weight lifting, sprinting, and jumping; any exercises that consist of short (roughly no more than 3 minutes, typically a few seconds) exertion is an Anaerobic exercise. Most anaerobic exercises are preformed in sets. Anaerobic exercise is typically used by athletes in non-endurance sports to build power and by body builders to build muscle mass. Muscles that are trained under anaerobic exercise develope biologically diffrently giving them greater preformance in short duration-high intensity activites. While aerobic exercise is more popular for weight loss; anaerobic exercise helps in weight loss by increasing the rest metabolism of an individual.