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Thickening of the heart wall is also known as 'Hypertrophy', this happens due to increased stress on the heart. The extra work of pumping blood against the increased pressure causes the heart wall to thicken over time, the same way a body muscle increases in mass in response to Weightlifting.

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15y ago
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15y ago

Exercise makes your muscles work, in the process of working, they are using more oxygen. Oxygen is carried by the red blood cells in the blood stream. Since muscles need more oxygen the heart needs to pump faster to supply the muscles with the oxygen it needs.

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13y ago
Heart Size and Cardiovascular ActivityA heart is a muscle that is responsible for pushing blood out and into the body. Just like working out your biceps, frequent exercise of the heart muscle will increase its size. When you run or do any other activity that tests your endurance, you are using muscles in your body at an increased rate. As a result of increased activity, the muscle cells require more oxygen. The only way to get more oxygen to these cells is by pumping more oxygenated blood to the tissues, resulting in an increased heart rate. The harder your heart works on a regular basis, the larger it will become due to increased muscle mass.
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13y ago

your heart gets bigger because your body gets bigger

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11y ago

It Makes your heart stronger because Exercise Makes the Heart work harder to deliver oxygen to you muscles and when it does this it strengthens your heart muscles.

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Q: Why does heart size increase with endurance activity?
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Related questions

Does exersice increase the size of your heart?

No, exercise doesn't increase the size of the heart. Exercise does strengthen the heart so that you can become more active in life.


What is the size of a heart cell?

they increase in size as we get older, so we can never tell.


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A hypertrophic heart is an enlarged heart, which is due to an increase in cell SIZE rather than cell number (the latter is referred to as "hyperPLASIA").


Does an electrocardiogram record the electrical activity of the heart?

Yeah, that's its prime objective. The leads placed on the limbs can measure the heart's electrical activity, as the voltages generated in the heart are readily transmitted through the body to the limbs.


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Actually both, but fitness training does not necessarily entail greater size of muscles. Exercise strengthens and maintains the muscles and their related systems.


What type of activity is doing push ups?

At the elbow in the downward faze of the press up your elbows movement is flexion as is is decreasing in size. your shoulders movement is extension as the muscle is increasing in size. on the upward phase it is the exact same but the opposite way around... (elbow - extension and shoulder - flexion)


What is the expected heart rate for a ten year old?

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What are the long term effects of exercise on the heart size?

Regular exercise has been shown to increase the size of the heart muscle, specifically the left ventricle, which is responsible for pumping blood to the rest of the body. This increase in heart size is known as cardiac hypertrophy and is considered a beneficial adaptation to exercise. It allows the heart to pump more blood with each beat, resulting in improved cardiovascular performance and reduced risk of heart disease. However, excessive exercise or certain types of high-intensity training can lead to an abnormal increase in heart size, which may be associated with negative effects on heart function. It is important to consult with a healthcare professional and engage in a balanced exercise routine to maintain optimal heart health.


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