Experiment to Determine How Heart Rate is Affected by Exercise Essay

Experiment to Determine How Heart Rate is Affected by Exercise Essay

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Throughout this investigation, I will be conducting a number of experiments to help solve whether or not heart rate is affected by exercise. My aim is to identify the difference of every volunteer’s heart rate and take down how old they are so I can evaluate whether or not the age of a person make a difference in their bpm (beats per minute).

Many people know when you exercise for long periods of time; your breathing becomes more shallow and quick. The main human organ system used when exercising is the respiratory system. There are two types of respiration your body can carry out, aerobic, with oxygen, and anaerobic, without. The reason for getting tired from exercise is because when the body runs out of the oxygen it needs, anaerobic respiration takes its place. This respiration has no oxygen which means the body releases less energy and produces lactic acid. Lactic acid is a poisonous waste product that stops muscles contracting and relaxing. In this investigation, I will be finding out whether exercise that has two different types of respiration has a strong affect on the heart and its’ cardiac cycle.

I believe that throughout this investigation, the heart rate of the people of the people I will be experimenting on will speed up and rise to a very fast pace. I also think that although the heart rate is bound to increase, the pulse will eventually reach its maximum acceleration and stay steady after a long period of exercising. I do not believe that will be the result in my experiment for a main reason that the longest period of time people will be exercising in is 2.5 minutes, which is not long enough to get the heart rate at its maximum speed of acceleration.

In this investigation, I will be attempting to make this e...


... middle of paper ...


.... The tests were all similar to one another and the results were moving as predicted. After repeating it with three different people per age group, most of the results had no big differences. The range bars were not very far apart and were closer together because of how similar the results were even before calculating the averages. This shows me my results are quite reliable because most of the data collected was alike, so they were not misinterpreted or mistakes.

I think the results do fit with my conclusion and my theory. Most of the results are in the line of best fit and there is only a few odd results all together, if more results were taken, it would have helped justify my theory that the heart rate will eventually stop increasing, even when you carry on exercising. I think if we used longer time periods for exercise, we could have seen a bigger effect.


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