• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Heart Rate Investigation

Extracts from this document...


Introduction The heart rate of a human varies from 150 beats per minute in young children, to about 60 beats per minute in the aged, however I am going to investigate whether my heart rate increases or decreases during physical exercise and why it does this. Prediction From my general knowledge I predict that my respiration rate will increase as a result of physical exercise. To start with I predict that there will be a general increase, but as my body starts to work harder I think that the heart will have to increase to a faster rate. My heart will have to pump more quickly to get the oxygen to my muscles for my body to function correctly. Once I have completed the exercise I think that my heart rate will decrease back to my normal resting pulse rate. I have made these predictions because I believe the supply of oxygen to the muscles will decrease which therefore will make the heart rate push harder. ...read more.


The 2nd person I studied, his name is Kyle who is a 15-year-old male non-smoker, which does a lot of regular exercise. The 3rd person I studied, her name is Emma who is a 16-year-old female smoker, which does not do much exercise. I feel doing these different people will give me a variety of results. Safety Issues To make sure there is no injuries during the experiment you must: - * Insure you have warmed up the muscles properly * Have the correct footwear on * Have the correct clothing on * Do not over do you bodies limit * Make sure you warm your muscles down Results Keira's (Me) Time of exercise Pulse Rate (b.p.m.) 0 (resting) 30 seconds 1minute 1min 30secs 2 minutes 2min 30secs 3 minutes 3mins 30secs 4 minutes 4mins 30secs 5 minutes 74 89 101 114 156 179 196 205 214 222 235 Average 162 Kyle's Time of exercise Pulse Rate (b.p.m.) ...read more.


Evaluation In my personal opinion I thought my results was fairly ok but maybe a little too high to what they should have been. I did not find any difficulties in taking the pulse rate, it was just being able to keep count as it was going fast and difficult to make sure I didn't loose the pulse. You can't be sure that you do the same exercise every time as peoples styles of running may vary, also different people run at different paces and speed. To improve this situation it may be better to try running up and down the stairs so many times in a minute. I tried making my results more reliable by calculating the averages and using three different types of people. If I were to do it again I would try and use more age groups, a different exercise and a wider range of people, exercises and times, also to separate the men's results from the women's as they are different in size, weight and body fitness. GCSE Coursework Investigating Heart Rate Keira McAleese ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Humans as Organisms section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Humans as Organisms essays

  1. The heart rate of a human varies from 150 beats per minute in young ...

    This is because of the pay back the body has to complete first. After two minutes after the exercise is complete the decrease rate then begins to gradually fall as the pay back becomes complete. Evaluation Although I believe that my experiment produced fairly valid results, I am not sure that my experiment was particularly accurate.

  2. Potato and Osmosis Investigation

    Results of Main Method Concentration of sugar solution (M) Test tube Mass Before of potato (g) Mass After of potato (g) Percentage change in mass % 0 1 1.25 1.5 25 2 1.29 1.49 20 3 1.38 1.59 21 0.2 1 1.41 1.36 -5 2 1.38 1.31 -7 3 1.43 1.37 -6 0.4 1 1.35 1.09 -26 2 1.34

  1. To find out whether ' does exercising for different amounts of time creates a ...

    Carbon dioxide and water are produced by this reaction and these are waste products. The equation for aerobic respiration is below: Glucose + oxygen carbon dioxide + water (+ energy) This sort of respiration is called aerobic respiration, because oxygen is taken from the air and used.

  2. Effect of Exercise on Heart Rate Investigation

    In cells aerobic respiration takes place in the mitochondria. When the heart rate is at it's maximum it is pumping as much oxygen to the muscles as possible. After exercise the heart rate will take a while to return back to it's resting rate. In this time the oxygen debt is paid back so that any lactic acid is oxidised.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work