Aerobic capacity, often measured through VO2 max testing, provides a critical assessment of overall fitness and endurance. This measure indicates the maximum amount of oxygen the body can utilize during intense exercise, reflecting cardiorespiratory fitness. Higher aerobic capacity is associated with improved abilities to perform physical activities and reduced risks of cardiovascular diseases. Regular aerobic training can enhance this capacity by improving heart efficiency and lung function. Consequently, monitoring aerobic capacity is key for setting fitness goals and tracking progress in endurance athletes or those undergoing physical training.