The answer is anaerobic exercises. There are aerobic and anaerobic exercises. Aerobic exercises are also known as cardio. Aerobic means that body demands oxygen, the muscles need to use oxygen. Aerobic exercises include walking, jogging, running long distances, swimming. Anaerobic exercises are intense enough to produce lactate; they promote strength, power, and build muscles. Anaerobic exercises are high intense in a short period of time (less than two minutes): push-ups, pull ups, abs, and weight liftings are examples of anaerobic exercises.