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How does exercise affect my pulse rate?

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Experiment: How Does exercise affect my Pulse rate Planning In this experiment I am trying to find out how exercise affects my pulse rate. I will do this by exercising then measuring my pulse rate. In this experiment I will use 2 pieces of equipment, a stopwatch and calculator. I will use the stopwatch to time how long I exercise for and the measure my pulse rate and I will use the calculator to work out my pulse rate. I will first exercise for 15 seconds then measure my pulse rate for 15 seconds then rest for 2 minutes then repeat the process. I will do this 3 times then increase the amount of time I exercise for to 30 seconds and do the same but exercise for 30 seconds. ...read more.


When I exercised for longer periods of time my pulse rate would increase more than before. In my graph my pulse rate increases slightly then increases rapidly then dips slightly at the end. My pulse rate increases because when I was exercising I used my muscles to jog on the spot. My muscles need oxygen and glucose to work. I get these by breathing which gives me oxygen and by eating and drinking which gives me glucose. I transport these 2 with blood cells that are pumped around my body. As I exercised my muscles needed more oxygen and glucose faster so my heart started pumping the blood faster so it would get to my muscles faster, and my pulse rate is how fast my heart is pumping blood so as I exercised my pulse rate increases. ...read more.


Although all of these things affected my results I was still able to conclude that exercise increases my pulse rate. If I could do this experiment again I would try to exercise at the same rate each time, I would also do it in a more controlled environment by controlling the temperature, which could affect my pulse rate. Other experiments I could do would be exercising but using specific muscles in each experiment such as using my biceps by using weights or using a treadmill to use my hamstring muscle. Another experiment I could do would be to measure my pulse rate as I exercised to see how it actually increased and I could also exercise in different temperatures to see how it affects my pulse rate. Sean Homans B1 ...read more.

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