What is Anaerobic Exercise Capacity?

Anaerobic exercise capacity is the ability of the body to carry out intense physical activities within a short period of time. This includes activities such as sprinting, high-intensity interval training (HIIT) and power-lifting. Participation in anaerobic exercise may exert beneficial effects on cardiovascular and lipid profile of an individual. Anaerobic exercise usually involves fast twitch muscles.

How It Affects Your Body

During anaerobic exercise, the body muscles mainly use adenosine triphosphate (ATP - an energy source).

Anaerobic exercise uses carbohydrates in the absence of oxygen, to produce energy. Muscles store a small amount of carbohydrates (glucose) to give short amounts of energy for intense activities. However, the amount of ATP produced during anaerobic exercise is lower as compared to aerobic exercise (oxygen is present).

As glucose is broken down, lactic acid is produced, accumulating in the blood. A high lactic acid level in blood is interpreted by the brain as a signal of muscle fatigue and burning sensation during intense exercise. This is what limits the time you can engage in anaerobic exercise.

In order to better tolerate lactic acid, you need to have proper training that strengthens your exercise endurance. Higher anaerobic capacity allows you to perform training with higher intensity over longer distance and longer period of time.