![]() ![]() Over time, this improvement increases endurance and overall health. In general, exercise encourages the body to become more efficient at taking on, distributing, and using oxygen. ![]() Lung size does not change, but the lungs do use oxygen more effectively. How does lung health change with exercise?Īlthough the heart steadily strengthens over time, the respiratory system does not adjust to the same degree. The hearts of endurance athletes show expanded left and right ventricles, whereas those of strength athletes show thickening of the heart wall, particularly the left ventricle. However, recent research suggests that different types of activity change the heart in subtly different ways.Īll types of exercise increase the heart’s overall size, but there are significant differences between endurance athletes such as rowers and strength athletes such as football players. The heart’s efficiency changes and improves after persistent training. ![]() How does heart health change with exercise? For example, the heart muscle becomes stronger so that it is able to pump more blood per heartbeat.Īt the same time, additional small arteries grow within muscle tissue so that they can deliver blood to working muscles more effectively when needed. It is important to begin these activities slowly and gradually increase the intensity over time.Įxercising increases cardiorespiratory endurance in a number of ways. People who regularly engage in these activities are more likely to be physically fit in terms of cardiorespiratory endurance. Cardiorespiratory endurance indicates how well the body can supply fuel during physical activity via the body’s circulatory and respiratory systems.Īctivities that help improve cardiorespiratory endurance are those that cause an elevated heart rate for a sustained period of time. ![]()
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