The effects of exercise on heart rate.

This essay hasn't yet been marked by one of our teachers

You can view 13 essays on Humans as Organisms that have been Marked by Teachers

The first 200 words of this essay...

Biology Coursework

The effects of exercise on heart rate.

Introduction:

This experiment is to investigate the effects of exercise on heart rate. In my experiment which I will devise I will have independent variables which I will be able to change without affecting the other variables which are the constant variable and the dependant variable which I will measure. Safety will be an important factor at all time and all actions will be taken to avoid accidents.

Method:

I will be using a running machine to do my exercise on. I will be wearing a heart rate monitor which measures the beats per minute and sends a signal to the machine where the heart rate is displayed on the screen. I will run at five different speeds for two minutes each and I will do this three times. I will take measurements of the heart rate immediately after exercise and note them on my table. compare them to the control (rest). An average will be taken of the three sets of results.

Independent variable:

The independent (manipulated) variable will be the work rate (speed). As the running machines have pre-set speeds, it will be