canīt agree with you. Your Heart is more efficient, it is stronger and has a lower resting pulse.. thus your max pulse is harder to reach because your trained cardio vascular system is so much better at what it does. Look at an untrained person, they hit maximum heart rate very quickly and their heart is unable to supply oxygenated blood quick enough. A trained athlete can last much longer before his cardio system and heart rate hit itīs max.. the legs and musculture are still being fed with oxygenated blood.
You are right, there is such a condition as athletes heart, in which the human heart is enlarged, and the resting heart rate is lower than normal. Athlete's heart is common in athletes who routinely exercise more than an hour a day, and occurs primarily in endurance athletes, though it can occasionally arise in heavy weight trainers. Athlete's heart most often does not have any physical symptoms, although an indicator would be a consistently low resting heart rate.
Athlete's heart is a normal, physiological adaptation of the body to the stresses of physical conditioning and aerobic exercise. People diagnosed with athletes heart commonly display three signs that would usually indicate a heart condition when seen in a regular person: bradycardia, cardiomegaly, and cardiac hypertrophy. Bradycardia is a slower than normal heartbeat, at around 4060 beats per minute. Cardiomegaly is the state of an enlarged heart, and cardiac hypertrophy the thickening of the muscular wall of the heart, specifically the left ventricle, which pumps oxygenated blood to the aorta. Especially during an intensive workout, more blood and oxygen is required to the peripheral tissues of the arms and legs in highly trained athletes' bodies. A larger heart results in higher cardiac output, which also allows it to beat more slowly, as more blood is pumped out with each beat.
