Which fitness component is related to the functioning of the heart and lungs?

Cardiorespiratory fitness is directly related to the functioning of the heart and lungs. This fitness component reflects the efficiency with which the body can deliver oxygen to the muscles during sustained physical activity and how effectively the heart and lungs work together to support this process. High levels of cardiorespiratory fitness indicate that the cardiovascular system can transport oxygen-rich blood to the working muscles while efficiently removing carbon dioxide and other waste products.

Improving cardiorespiratory fitness is primarily achieved through aerobic activities such as running, cycling, swimming, and any other prolonged exercise that elevates the heart rate and enhances the efficiency of the respiratory system. This component of fitness is essential for overall health, as it is closely linked to the reduction of risks for chronic diseases, improved mental health, and better performance in physical activities.