Does exercise affect heart rate and how?
Exercise does affect heart rate.
During exercise, the muscles of the body are at work and for the muscles to work energy is required. In order to provide energy to the exercising muscles the blood supply to the muscle increases so that the glucose-a monosaccharide sugar, C6 H12 O6, occurring widely in most plant and animal tissue; it is the principal circulating sugar in the blood and the major energy source of the body-is mobilized …
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…heart rate increases. Nutrients and oxygen is supplied by the blood stream to the Myo Cardium, which helps in pumping the blood faster into the skeletal muscle. This results in increase of the heart rate. At the same time, the oxygen requirement of the exercising muscle increases which causes the heart rate to increase in the respiratory system. These are the factors, which increase heart rate whenever there is a strain on any skeletal muscle.
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