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What does the effect of exercise have on the heart rate?

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Introduction

Biology Coursework Ashleigh Reay What does the effect of exercise have on the heart rate? Introduction This assignment is intended to determine what the effects of exercise will have on your heart rate. We are going to do this experiment by using a data logger to record the results we receive. This can then be transferred to a computer and results can be made into graphs and charts. A data logger works by first being connected to a computer. Then software is used to select start times finish times and when to take measurements. The logger is then disconnected and attached to the person. The logger records each measurement and stores it in memory along with the time. The logger is then reconnected to the computer and the software is used to retrieve the data and see the measurements as a graph, and charts. Data loggers are extremely efficient because they are very small and usually battery powered for ease of use. ...read more.

Middle

Anaerobic respiration only releases a small amount of energy and produces lactic acid. (This is the burning like feel you have in your muscles when you do vigorous exercise and sometimes turns into cramp or stiffness.) Anaerobic respiration only takes place when there is not enough oxygen. Anaerobic respiration takes place in the cytoplasm of cells. Oxygen is needed to remove the lactic acid this is shown as: Oxygen Lactic acid Water + Carbon Dioxide O2 CH3CHOHCOOH H2O + CO2 This is commonly know as borrowing energy without paying oxygen. Hence oxygen must be repaid therefore the person will breathe deeply for a while after the exercise this is known as the recovery period. Prediction I predict that during exercising the heart rate will increase dramatically because the heart is working harder to pump the oxygenated blood around the body. So the oxygen can get to the cells so energy can be released during respiration for the muscle contraction we need to exercise. This also refers to the information about respiration in the introduction. Variables and a fair test. ...read more.

Conclusion

Results 1st set of results Time Heart rate (beats per minute) 30 seconds 1 minute 1minute 30 seconds 2 minutes 2 minutes 30 seconds 3 minutes 3minutes 30 seconds 4 minutes 4 minutes 30 seconds 5 minutes The spare rows are to be used to put heart rates in after you have finished exercising they should continue until your heart rate has returned to normal. NOTE: You may need to add more rows. 2nd results Time Heart rate (beats per minute) 30 seconds 1 minute 1minute 30 seconds 2 minutes 2 minutes 30 seconds 3 minutes 3minutes 30 seconds 4 minutes 4 minutes 30 seconds 5 minutes 3rd results Time Heart rate (beats per minute) 30 seconds 1 minute 1minute 30 seconds 2 minutes 2 minutes 30 seconds 3 minutes 3minutes 30 seconds 4 minutes 4 minutes 30 seconds 5 minutes Hopefully by gaining a full set of results we will be able to put together a graph or pie chart, like the examples below. Remember this is only an example and does not show any true results. Not to be used as evidence of true heart rates. ...read more.

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