What does anaerobic exercise involve?

Anaerobic exercise is characterized by activities that are performed without sufficient oxygen intake to meet the demands of the muscles being used. This type of exercise typically involves short bursts of high-intensity effort, where the body's energy needs surpass the oxygen supply available. As a result, anaerobic activities rely on energy sources stored in the muscles and do not require extensive breathing, which is the primary distinction from aerobic exercise that emphasizes endurance and sustained oxygen use.

The nature of anaerobic exercise means that it is particularly effective for building strength, power, and muscle mass. Exercises such as sprinting, weightlifting, and high-intensity interval training exemplify anaerobic activities, where short, intense efforts are employed rather than prolonged activity that would require sustained oxygen consumption. This difference highlights why working without adequate oxygen is fundamental to understanding anaerobic exercise.