Investigation Into Intensity Of Exercise And Heart Rate

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Science Assignment – Term 3 2016 Draft
An investigation into intensity of exercise and heart rate

Aim – To determine the effect of intensity of exercise on heart rate.

Background research – The heart belongs to the circulatory and cardiovascular systems. The circulatory system delivers oxygen and nutrients to cells, takes away wastes, uses the heart to pump oxygenated and deoxygenated blood on different sides and has different types of blood vessels including arteries, capillaries and veins. (Better Health Channel, 2012) The heart is the main organ in the circulatory system, it is a muscular pump and its key function is to pump the blood throughout the body.
Heart rate is also known as a pulse, it is the number of times a person’s heart beats per minute. (Live Science, 2015) Heartbeats are felt by finding a spot on the body where an artery is close to the surface and a pulse can be felt. (Topend Sports, 2016) This pulse is used to measure heart rate, the number of heartbeats depend on the pulse. When exercising the heart rates response is determined by the amount of exercise being done, the greater the demand the greater the response. (Ptdirect, 2010) This is because the faster the exercise the more work the heart has to do in order to make the blood flow, if the lungs are being used more for breathing the heart rate will increase more than the usual heart rate. The maximum heartrate is 220 beats per minute minus the current age that the pulse was taken at,
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