I predict that as the amount of time I exercise for increases so will my pulse rate.
To make sure the experiment was safe I moved away all the chairs, tables etc around the area I was exercising in so I would bump into anything. Also I made sure I made sure the clothing I was wearing was suitable to the exercise I was doing.
Results
Analysis
I found in my experiment that as I exercised my pulse rate would increase above my resting pulse rate. 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.
Evaluation
When I started my experiment I was measuring my pulse rate with my thumb. This made it hard to measure my pulse rate because my thumb’s pulse rate is very strong in my thumb so it would make it harder to find my actually pulse rate so I switched to using 2 of my fingers.
I think that overall my results were quite accurate. My graph results show that my pulse rate was increasing rapidly the only slightly increasing. This is because at some points in the experiment I exercised harder or less hard. The majorette of the points on my graph weren’t very close to my line of best fit but a few were on it or very close and all of them follow the curve. 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.
