• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11

Investigate the effect of exercise on our heart rate.

Extracts from this document...


Introduction In this introduction you will find information on what happens when you do exercise and what happens to your heart as you grow up. You will know about aerobic and anaerobic respiration. We will also do an experiment to check how long it takes your heart rate to go back to your recovery rate. The Heart: The muscular walls of the ventricles contract and relax continually. Every time the muscle contract, blood is pushed out through the outlet valves and into the arteries. The surge of blood causes your heartbeat. You can feel this surge of blood as a pulse in the arteries, at your wrist. The ventricles have a very thick wall made of strong muscles fibres. They need to be strong because they pump about 70 times every minute up to about 37 000'000 Exercise can help you lose weight by burning calories and increasing metabolism. It also helps you handle stress by burning chemicals in your blood stream like adrenaline that are released when you're under stress. So where do you start: If you have a diagnosis of angina or are recovering from a heart attack, angioplasty or surgery to treat coronary artery disease, ask your doctor when it's safe to begin gradually increasing your physical activity. Talk with your doctor about attending a cardiac rehabilitation program in your community. Everyone over the age of 40 should talk with their doctor before beginning a program of vigorous exercise. Once you've got the go-ahead from your doctor, begin with activities you like. Running, although it's a superb conditioner, is not for everyone. ...read more.


Trainers to run in and to do exercise. Water to have a drink after you have done the exercise and checked your pulse. Diagram: Method: First of all we check our pulse three times before we start the experiment and record on a table. After we got our heart rate per minute we add them all together and divide by three to get a recovery rate per minute because to get an average pulse. Secondly we do our exercise in the playground for different time's altogether 5 minutes. First for one minute, we use a stop watch to time this and after our one minute of exercise we check our pulse for 30 seconds and x 2. We check our pulse by putting our hand near our heart or getting our two fingers and pressing down on our wrist. After you have checked your pulse for every minute you record on a table. You do exercise for 2 minutes and check your pulse and then 3 minutes and check your pulse, then 4 and finally 5 minutes. Fair Testing: - You can make this test fair by running the same speed for every minute. - You can also stop at the right time when the time of the exercise and check your pulse straight away. - Don't stop when you are exercising because it will make your heart rate go down. - Don't drink water while you are running because it will slow down your heart. Prediction What Happens to the Heart when we Exercise? This is my prediction where I talk about what might happen in the experiment. ...read more.


Plus we also found out how long it takes the pulse after exercising to go back to its rest rate. Evaluation: Yes our investigation went smoothly and very successfully, the thing that was really successful was that it was really easy; you only run around the playground for different times of minutes and then check your pulse and record on a table. It was really easy to record our results and make a line graph. My prediction was quite correct to the actual results that I found out. If I had to redo the exact investigation the things that I would change is the different lengths of running/ exercising around the play ground and check the pulse straight after the running time has finished to get closer results. Factor Which May Affected The Accuracy of My Results: - Another possible error in the investigation could or may have been is that the speed you run at for example, when you run for the fist minute you may be running much slower and the second time you may be running much quicker the second time. So next time I do this investigation I could try to run the same speed for every minute. Overall: In this investigation I have learnt a lot of new things that I didn't already now that I know now, those are - I have learnt that the more you exercise the higher your pulse rate goes. Yes I did enjoy this investigation very much because it was easy and practical and fun to do. I learnt some really cool things that I didn't know before and know I now because of this investigation. By Sultan Shafiq 9.T. Sultan Shafiq 9.T. - 1 - ...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. Marked by a teacher

    Is the MMR vaccination safe?

    5 star(s)

    The idea that three vaccines will overload the child's immune system is also not based on scientific finding. A baby's immune system fights off thousands of different bacteria that bombard it every day. Professor Offit, from the Infectious Diseases division of the Children's Hospital of Philadelphia and the University of

  2. Marked by a teacher

    The effect of different sugar substrates on the rate of yeast respiration

    4 star(s)

    * Heated Water bath- the conical flask will be placed in here. The water bath will allow the temperature to remain constant. * 25cm� of 2% Glucose- This will be used as one my respiratory substrate. * 25cm� of 2% Maltose- This will be used as one of my respiratory substrate.

  1. Marked by a teacher

    Investigating the effect of exercise on the heart rate and recovery time.

    3 star(s)

    PREDICTION I predict that further Mark runs the higher his heart rate will get and the longer it will take for his heart rate to return to normal. Because the further Mark runs the more oxygen his muscles need. This is because when he is working hard his body needs more energy to keep going.

  2. An experiment to investigate the rate of anaerobic respiration of yeast in various respiratory ...

    Therefore anaerobic conditions will be used as I feel this would provide me with more accurate and reliable results from which to analyse my data from and draw relevant conclusions. However, it must be taken into account, that by using anaerobic conditions ethanol is produced and remains locked inside the solution.

  1. To investigate how the heart rate and breathing rate increase with exercise.Scientific KnowledgeAerobic respiration ...

    This means that you can consciously over-ride normal breathing, for example by holding your breath, whereas the medulla usually allows you to breathe normally without thinking. As soon as we begin to exercise, the rate of respiration in our muscles increases and more carbon dioxide is released into the blood.

  2. Ideal Position to Recover Resting Heart Rate- Lab. Does the physical positioning of ...

    140 108 100 100 96 14 Sitting 84 140 116 92 88 88 F Laying 88 116 88 76 76 76 Emilia Standing 72 92 72 68 64 68 14 Sitting 60 104 72 60 60 60 F Laying 64 100 72 68 68 64 Kat Standing 100 164 126

  1. The aim of the experiment is to find out the effect exercise has on ...

    If the graph were to be carried on four a longer period of time my graph would show this. The energy that is released for movement energy and the rest is used as heat energy this why your body temperature increases.

  2. The aim of my investigation is to measure the effects of BMI (body mass ...

    Make sure that the subjects don?t run too fast. 3 3 Call the school nurse. ________________ Underweight 165 50 18.3 84 140 52 84 144 86 140 Normal Weight 169 59 20.7 90 144 76 90 156 90 140 The results shown above suggest that my prediction is accurate.

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