Cardio

Cardiovascular fitness, often referred to as cardio or aerobic fitness, relates to the efficiency of the cardiovascular system (heart, lungs, and blood vessels) in delivering oxygen to muscles during prolonged physical activity.

Improving cardiovascular fitness enhances endurance, reduces the risk of cardiovascular diseases, and promotes overall heart health.

Cardio improves with sustained efforts such as running, cycling, swimming or rowing, and with high-intensity intervals and circuits. Mixing long, easy sessions with shorter, harder ones develops both endurance and the ability to recover quickly.

It is one of the 4 components of a comprehensive physical development.