Investigating the effect of exercise on the heart rate

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Investigating the effect of exercise on the heart rate

Purpose of investigation

The purpose of this investigation is to find out what effect exercise has on the heart rate and how much it increases when you exercise

Trial experiment

For our trial experiment we decided to use moving along as our exercise to increase our heart rates. We measured out 20m with measuring tape and sprint for 100m.We measured our heart rate before and after.

Results of trial

Heart rate before

Heart rate after

Person 1

58

80

Person 2

72

200

Method

Now that we have done a trial experiment we have came up with a method to do the experiment, which is:

We will measure out 20 metres in the tennis courts and sprint up down it. We will start off by sprinting 20m then taking our pulses then wait until our heart rate has gone back to normal then repeat the process another two times so we get an accurate result. Next we will sprint 40m which is the length of the tape measure there and back we will also repeat this 3 times. After we have done 40m we will repeat all the same processes for 60m, 80m and 100m. We will also measure our pulse rates before we do any exercise so we no our resting pulse rate.

In our experiment we will need a 20 metre long tape measure and some trainers to wear while we run.
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We will measure our heart rates by placing our middle finger and index finger on the side of our necks just below our jaws.

We will do 5 different degrees of exercise but we will repeat each one three times and find the average so we have more change of getting accurate results.

The hazards of our experiment and the safety precautions we going to have to use are:

* Make sure we use trainers to run in which our less dangerous than running in school shoes.

* Make sure we make sure its ...

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