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Determing the Factor that Affect Heart Rate

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Determing the Factor that Affect Heart Rate Prediction: - I predict that during exercise the heart rate will substantially increase, and then decrease afterwards. This will tale place during the resting period. Analyse: - From my results I found out that the heart rate of the students increased substantially after exercise. This was true for all students. After the exercise had been performed (resting period), the heart rate gradually decreased, hopefully to its resting or "normal" heart rate. This was also true for all students. The resting rate and the heart rate at the end of the exercise; approximately 6 minutes after should be exactly the same as the The patterns that I found out from the results during the 6 minutes resting rate, in which also the heart rate was recorded, was that, it gradually decreased towards rate which is exactly the same as the resting rate. Another pattern that I have found is that the reading taken immediately after exercise and that at one minute has the greatest difference in beats. Other consecutive minutes decrease at a smaller difference. This is observed in all students. This can be seen in the 3rd persons results. As you can see the resting rate is 82 beats per minute. The rate after exercise is 113 beats per minute. As you can now see, after this reading at each consecutive minute, the heart rate starts to decrease. At the end of 6 minutes the heart rate has returned to normal (resting pace). ...read more.


at 2 minutes * Person 3 : 3 anomalous results, at 2,3,5 minutes * Person 4: 1 anomalous result, at 5 minutes * Person 5: 3 anomalous results, at 2,3,6 minutes EVALUATION: - From looking at the results and the graphs I think that the method wasn't very good, and there are too many anomalous results. I think that the procedure that they used in the experiment was o.k. however accuracy and an evidence of a procedure containing a fair test could have been more implemented. Judging from the results the procedure that they used wasn't very reliable and good. A higher level of the aspect fair test could have been used. By looking at the results I have suggested a few factors that could be responsible for the fault in the procedure > Each students could have been in a different emotional state, e.g. stress etc. > The students could have different levels of fitness. This would result in his resting time being much longer than of a fitter person. One student might be fit and the other not. > Before the experiment would have been carried out, the students could have ran there or jogged, this increasing their heart rate before the experiment. This now becomes an unfair experiment. > During the resting time, one or the others could have seen or heard something or moved randomly so suddenly that it had an affect on the heart rate. ...read more.


NEW PLAN: - To make/improve the experiment I have suggested a new method that can and could replace the present. My proposed method is as follows: - Firstly group 10 students in suitable groups depending on their size and weight. Then group the students in the correct criteria. Once this is done give each student the same kind of stopwatch. (This would reduce the % of low accuracy within the experiment. By grouping the students it would produce a fairer and more explanative set of results. It would become easier to analyse the results and compare them between fit and unfit people). Now choose an exercise, which each group can do at the same, at the same place. This ensures a fair test. Get all students to start and end the exercise at the same times. This ensures a fair test and accurate results. Then start the students off on the exercise for approximately minutes. This would give enough time for the heart to warm up. At the end of two minutes stop all the students and immediately after this instruct them to measure their heart rate. By this time all students must be motionless. Tell them after this to start timing 1 minute on their stopwatch. All students now must record their heart rate at the end of each minute for 6 minutes in total. Whilst the students are recording their heart rate their hands must be firmly pressed against their chest so that they can feel the heart beat. All students must stay still sitting on a chair throughout measuring their heart rate, apart from when they record it immediately after the exercise. ...read more.

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