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

Investigate how different amount of exercise affects the heart rate.

Extracts from this document...

Introduction

AIM: To investigate how different amount of exercise affects the heart rate. INTRODUCTION From my previous knowledge I know that as soon as we begin to do the exercise, the rate of respiration in our muscles increase and more carbon dioxide is released into the blood. Therefore we start to breathe faster, when the level of carbon dioxide in the blood raises and as we breathe faster, our heart rate will increase automatically. If you do more exercises, more oxygen is needed to pump the blood through our body, so the heart has to pump very rapidly. And if we do exercises continuously for a long time, our muscles have to work hard with the little amount of oxygen therefore we start to respire anaerobic ally. For example while doing the exercise, under these conditions we cannot breathe faster enough, or pump our blood fast enough, to get sufficient oxygen to our muscles, so muscles respire anaerobic ally and lactic acid is produced. ...read more.

Middle

> I took my pulse rate again for 1 minute after I finished jogging on the spot for 30 seconds. > I continued doing the same exercise by increasing the timing, by 30 seconds each time, until I got enough evidence. > And while doing the exercise I made sure that I had some rest between each exercise until the heart rate became normal before starting to do the exercise again. > To make it a fair test, I repeated everything again and took the pulse rate. > Finally I recorded my results on a table. RESULTS Resting rate: 70 Length of exercise 1. Heart rate (BPM) Increase in rate 2. Heart rate (BPM) Increase in heart rate Average heart rate. 30 seconds 122 52 118 48 120 60 seconds 127 57 122 52 124.5 = 125 90 seconds 134 64 131 61 132.5 = 133 120 seconds 146 76 140 70 143 150 seconds 164 94 158 88 161 Length of exercise Average heart rate. ...read more.

Conclusion

I got almost the same results, only a small difference. And that is why I decided to take an average result. I can also say that I did not get any strange results and I can say this by looking at my graph. If I had more time to do this experiment, then I would have done it in two different conditions (e.g. morning and evening) to see if there was any difference in heart rate due to the different conditions. To make my conclusion more certain, I would also try to do a range of different exercises and compare to see if there was any affect in doing different exercises. I did my practical twice to get more accurate and reliable results. But if I repeat this experiment again then I would try to get a big range of different results. But this time I will use a "heart rate monitor" to make it more accurate and reliable. I can't exactly say that my results now are accurate because there are chances of human errors like for example I might have made a mistake while counting my pulse rate (loosing the counting). ...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. An experiment to investigate the rate of anaerobic respiration of yeast in various respiratory ...

    that the rate of respiration is fastest in the first half of the experiment. Again the graph seems to follow a linear shape. As I proved in the statistical analysis of my data, the differences in the rates of respiration between the different respiratory substrates is not due to chance, therefore they must have a biological explanation.

  2. Effects of Exercise on Blood Sugar Level and Pulse Rate.

    Step8- I will read the results after the blinking stops. This result will be recorded in a table. Then I will carry out the following steps when checking the pulse rate using pulse monitor. Step 1- The pulse monitor is wrapped around the left wrist ( not too tightly).

  1. Investigate how exercise affects my heart rate.

    inactive=low fitness level & active=high fitness level). Equipment & Materials For my investigation I will use a stopwatch, trainers, comfortable clothes, refreshments drinks, paper & pen to record data. Method For my investigation I will carry out 2 different types of exercises, they are: * Squats * Jogging on the spot 1.

  2. How exercise affects heart rate.

    Then record it again and repeat every minute until heart rate returns to normal 10. Then repeat the exercise at a different intensity Apparatus List * Stool-15cm step * Stopwatch * If necessary, a stethoscope Diagram Range of Measurements I have decided on my range of measurements after carrying out a preliminary experiment.

  1. How does exercise affect your heart rate?

    To achieve most of the things above we will make sure that there are always two people monitoring the experiment and checking the timer to make sure that the experiment runs smoothly and that we get accurate results. We will not keep the person doing the experiment the same because

  2. Effect of Exercise on Heart Rate Investigation

    Mitochondria are another important factor for cell energy. Inside a cell there can be thousands of mitochondria, depending on a cells role. The purpose of mitochondria is to break down food molecules so that cells have energy to live. Mitochondria are extremely small organelles. Inside them are a fluid called a matrix and an inner membrane, which folds many times to give maximum surface area.

  1. Measuring Heart Rate Increase With Exercise.

    As an adult your pulse rate ranges to an average of 72 beats per minute. The aorta, the largest artery in the body, is almost the diameter of a garden hose. Capillaries on the other hand, are so small that it takes ten of them to equal the thickness of a human hair.

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

    I will be giving a demonstration on how each individual can measure their heart rate. 7. After the demonstration, all of the test subjects will measure their resting heart rates for the duration of one minute (BPM), this will be repeated three times to ensure that the information provides a true representation for the BMI grouping.

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