Aerobic fitness systems (better known as cardiovascular or respiratory systems) rely on producing oxygen to help provide the energy you need to perform activities such as walking, jogging, and swimming for long periods. All sports have an element of aerobic fitness, but to varying degrees. For example, football can be eighty percent aerobic, whereas tennis is likely be about fifty percent.

Aerobic fitness is measured by how many millilitres of oxygen each kilogram of body weight consumes per minute. The bleep test measures your maximum oxygen uptake to test this. Knowing this is important for increasing your stamina and endurance whilst simultaneously improving your heart, blood vessels, and respiratory system.

The fat burning range (commonly seen in gyms) is less intense, but the downside of this is you don’t elevate your metabolism and keep burning calories when your training is over. If you work at a slightly higher intensity, you continue burning calories for one or two hours after completing your session.

Aerobic exercise is active rest and prepares you for anaerobic work.