why is the heart more efficient, the fiiter you are?

Question

Include these terms in answer: Increased stroke volume,
Increased Cardiac Output, Hypertrophied Heart, Larger Chamber, Lower resting heart rate.

Answer 1

Its a muscle, the better shape the muscle is in the better it works - write it yourself

Answer 2

The heart is a muscle of unique character. It has the ability to pump out between 45 to 60 cc of blood in a single contraction, that is called Stroke Volume. Increased cardiac output is the ability to increase the amount of blood being pumped thereby decreasing the heart rate needed to provide oxygen to the body.

When you exercise your muscle of the heart pumps faster and develops more tolerance to higher work loads. The muscle becomes stronger and more efficient.

A hypertrophied heart is one that develops bigger heart chambers, specifically the left ventricle as it tries to pump against a high pressure in the blood vessels. When one has hypertension, high blood pressure, the energy to move blood is significantly more and the heart enlarges to accomodate that, but it isn't a healthy enlargement, it is not a strengthened muscle so much that it is a fatigued muscle.

Resting heart rates below 60 often times are reflective of how well the heart is able to pump blood efficiently. A resting heart rate is when you are not doing any physical activity other than breathing and pumping blood to organs of your body.

Remember your heart has to pump blood to many vessels and as you gain weight, your body has to pump blood to the tune of 100 extra miles for every pound overweight. Sadly we all could lose some weight and that is the benefit of working out.

Good luck with the answer.

Answer 3

Well, I am no doctor, but I do have a degree in nutrition. My hypothesis is: the heart is a muscle itself. Just like any other muscle in your body it needs conditioning, and the more you work it, the more fine tuned it becomes. If you happen to be overweight, the heart has to work harder to pump nutrients throughout the body and in time adds wear and strain on the body. Diseases may also strain the heart. High Cholesterol too! --- I wanted to add that this is a kool service, but it doesn't take much to notice you are trying to get someone to do your homework for you... lol. Good luck, it helps if you learn yourself. ;)

Answer 4

The heart is a pump which is mostly made of muscle. Like
any other body muscle the heart is usually in better shape if
you exercise it on a regular basis.