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

How exercise affects your heart rate?

Extracts from this document...


Introduction As a part of my coursework, I have been asked to monitor the heart rate of a person before and after a certain length of exercise. And see how much of a difference it makes on their heart rate. I have found the heart rate of a human adult varies from 150 beats per minute. Whereas in young children the heart rate averages about 60 B.P.M. Prediction From what scientific knowledge I know I am predicting that the rate of respiration in the body will increase as a result of exercise. I also think that there will be a gradual increase in the heart rate to begin with, but then will increase quite dramatically as the body if forced to work harder. After the exercise has been completed what I predict will happen is that the heart rate will decline steadily to the resting pulse rate. Form what I have already learnt in class, what I think what will happen is that the level of oxygen in the blood and the muscles will reduce causing the heart rate to go up. ...read more.


* When the exercise is complete, the current heart rate will be recorded every minute until it returns to its normal heart rate. Results Table Time (min) Heart Rate (per minute) 1 2 3 Average 0 64 64 64 64 1 68 68 70 69 2 100 94 92 95 3 116 120 122 119 4 140 142 140 141 5 140 148 146 145 6 116 120 122 119 7 76 102 84 87 8 68 84 66 73 9 64 74 64 67 10 64 64 64 64 Analysis From what the graphs below shows that the heart rate didn't increase a large amount for the first minute but then it increased very steeply and rapidly for most of the rest of the exercises. Whereas, in the final minutes the heart rate did not increase much at all. I think this is due to the lack Oxygen in the muscles, also a lot of energy was used up during the exercise, this was because the body was not able to continue with aerobic respiration and anaerobic respiration took its place instead. ...read more.


For example, I cannot be sure that the step-up exercise that my brother has done was done at the same rate throughout that experiment. Likewise, I am not really sure that a 30-second interval was kept to the same this timing. If I were going doing this experiment again, I would probably have to look more closely at the method of exercise I used. I think that if I used a piece of equipment like a running machine that it would produce more accurate results because then I would be able to guarantee that the exercise would have remained constant throughout the whole experiment. Finally, if I had been able to use an actual 'pulse-meter' which might have helped the experiment to be more accurate. This equipment would have simply been strapped round the chest of the person involved in the exercise and would have measured your current heart rate. I think this because it would have produced a more accurate heart rate reading and it would not have been necessity to have to take a 30-second break during the exercise. ...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 ...

    For instance, I cannot be sure that the step-up exercise was done at the same rate throughout the experiment. Also, I am not sure that the 30-second intervals were kept exactly to this timing. If I were doing this experiment again I would have to look closely at the method of exercise I used.

  2. To discover if there is any link between the amount of exercise taken to ...

    As a result the heart rate would rise. Due to the increased intake of oxygen and heart rate the rush of oxygen and glucose to the muscles promotes oxidation of the lactic acid into CO so that it can be carried away.

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

    Therefore each particular repeat would contain differing concentrations of yeast and substrate, which would probably affect the rate of respiration of yeast, either increasing or decreasing the rate. For example if the concentration of substrate was too low, the rate of respiration could be decreased as there may not be excess substrate present.

  2. How exercise affects heart rate

    Method: I will take an average of my 3 resting rates, measured in beats per minute, to make the experiment a fair test. I will then run on the spot for 2 mins and record my pulse rate straight after this exercise.

  1. Investigate how exercise affects my heart rate.

    After, I will measure my heart rate again for 1 minute. 5. Then I will allow my heart rate to return to resting level and I will time the recovery period and record it. 6. I will then increase the time duration of the exercise to 2 minutes. 7.

  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. Creative Writing : “You’re only a survivor when you’re rescued; until then, you’re a ...

    Every single sense in my body surged out of control. Petrifying terror crept through my veins as boiling blood pumped faster and faster through my frozen body. Seconds passed, cold sweat seeping between the fibres of my vest, and my watering eyes stinging and burning as I attempted to supply saliva to my parched throat.

  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.

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