What affect does exercise have on our pulse?

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Biology Coursework – What affect does exercise have on our pulse?

Aim:

To find out what affect exercise has on our pulse by doing either different types of exercise or the same exercise for different lengths of time.

Prediction:

I predict that the longer you exercise the higher your pulse will get to a certain point where it will become steady, creating a smooth curve on a graph.

Equipment:

  • Stopwatch – to time when I exercise and when I take my pulse.
  • Area to exercise in / Treadmill – depending which is available.

Method:

For this test I will be jogging for a certain amount of time, taking my pulse for 15sec then jogging for the same time again without resting so the time builds up. This is how I will do my test:

  1. Start the stopwatch and jog for 30sec.
  2. Start the stopwatch and take pulse for 15sec.
  3. Then repeat until I have jogged for 5min in total.
  4. Multiply all my readings by 4 to get a bpm (beats per minute) pulse rate
  5. Repeat 1-4 3 times and work out an average to get a fair result
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Fair test:

To make sure that this experiment is conducted as fairly as possible I have come up with a number of things that need to be kept constant:

  • The jogging speed.
  • The temperature of the area where I jog.
  • The stopwatch used to time both the jogging times and the time to take  my pulse.
  • Where I take my pulse (neck or wrist).

The reason I need to keep conditions in the experiment as regular as possible is so that I can get accurate results to produce an accurate graph, otherwise the experiment is meaningless. Another ...

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