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What affect dose exercise have on the cardiovascular system and the heart?

What affect dose exercise have on the cardiovascular system and the heart? some one help i am really stuck

In the short term (During exercise) the heart pumps at a faster rate to provide oxygen to the muscles, and intern calls for heavier breathing to supply the lungs with air to feed oxygen to the heart.
In the long term (as you get fitter through exercise) the heart gets stronger and both heart and cardiovascular system becomes more efficient at providing oxygen, so that they do not have to work as hard in to provide oxygen in the future.

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One Response to “What affect dose exercise have on the cardiovascular system and the heart?”

  1. Pete F Says:
    February 15th, 2010 at 1:07 am

    In the short term (During exercise) the heart pumps at a faster rate to provide oxygen to the muscles, and intern calls for heavier breathing to supply the lungs with air to feed oxygen to the heart.
    In the long term (as you get fitter through exercise) the heart gets stronger and both heart and cardiovascular system becomes more efficient at providing oxygen, so that they do not have to work as hard in to provide oxygen in the future.
    References :

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