The Harvard Step test

Extracts from this essay...

Introduction

Tom Hazell Planning: * Firstly we found a bench that was 15 cm high. * Then we set up a table allowing us 3 different results from 5 different people. * The variable we used was changing the people doing the step-ups. * We stepped up onto the bench every 2 seconds (every odd number you stepped up and every even number you stepped down) for 300 seconds (5 minutes). * After I had done the step-ups for five minutes I rested for 1 minute then took my pulse for 30 seconds. * After another 30 seconds rest I took my pulse for 30 seconds again. * And after another 30 seconds rest I took my pulse again. * As there were 5 people in my group each person repeated this process until we had 5 people's 3 pulse counts, which we put into a table.

Middle

Person BPM count 1 BPM count 2 BPM count 3 Fitness Person 1 90 92 88 55 Unfit Person 2 62 66 64 78 Fit Person 3 64 62 60 80 Very fit Person 4 76 74 72 67 Fair Person 5 72 60 58 78 Fit Analysis: In conclusion to the experiment I would say that someone who is unfit would have a very high recovery time after doing exercise, in contrast to a fit person whose recovery time, would be very low. This means that their pulse wouldn't take very long to get back to normal. This is illustrated in the high BPM after 2 minutes of person 1 in our experiment. It shows that his heart is working very hard to try and pay back the oxygen it couldn't provide to the muscles during the exercise.

Conclusion

* I believe that we had some anomalous results for example a person who we believed to be fairly fit got 55, the lowest result recorded, so there is room for human error in taking pulses etc. * We could have done another experiment for another length of time to see if the time affected the pulses and the overall fitness. * We could have taken the results from different groups of people e.g. smokers, older teenagers, fitness people and the 'older person' as these people would have different levels of fitness according to their lifestyle. Overall however I feel that in the allotted time we have come up with a satisfactory conclusion for the amount of people we had and the results that we had. The results apart from one anomaly seemed reliable and accurate.

The above preview is unformatted text

Found what you're looking for?

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

Not the one? Search for your essay title...
  • Over 180,000 student essays
  • Every subject and level covered
  • Thousands of essays marked by teachers

Related GCSE Humans as Organisms

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

    To overcome this problem I could use an electronic water bath to keep the temperature constant at 30 degrees Celsius at all times. This would ensure that the temperature would not drop below 30 degrees and so this confounding variable would not contribute in any way to altering the respiration rate of the yeast.

  2. Assessment of Aerobic Fitness

    161 18 110.5 3108 3095 34.77 170 24 32 35 T VE V02 VC02 V02/ Kg HR 1 15.0 384 415 4.65 90 6 58.6 2332 2148 28.20 139 12 64.8 2435 2286 29.45 162 18 78.4 2920 2735 35.31 172 24 78.7 2556 2628 30.90 178 32 115.7 3263

  • Over 180,000 essays
    written by students
  • Annotated by
    experienced teachers
  • Ideas and feedback to write
    your own great essays

Marked by a teacher

This essay has been marked by one of our great teachers. You can read the full teachers notes when you download the essay.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review on the essay page.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review under the essay preview on this page.