Heart rate investigation
- This is a preview of the essay.
To view the full text you must login!
Heart rate investigation
I am going to find out how heart rate changes with exercise.
Prediction
From my scientific knowledge I predict that the rate of respiration will increase as a result of exercise. I think that there will be a gradual increase to begin with, but as the body has to work harder I believe that the heart will then increase at a faster rate. When the exercise is complete I think that the heart rate will gradually decrease back to the resting pulse rate.
I have made these predictions because I believe that the supply of Oxygen to the muscles will decrease which will push the heart rate up. I also think that a lot of energy will be used up as the exercise takes place, thus resulting in a further increase. If the body is unable to continue aerobic respiration anaerobic respiration will take place. This results in lactic acid being formed. Finally, the CO2 levels would also rise which would also contribute to the heart rate rising.
Equipment
Heart Rate Monitor Watch (Wrist Monitor)
20cm high wood block
Stop watch
Beat machine
Method
1...