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Investigate the effect of exercise on pulse rate.

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Heart Rate Investigation By Samuel Bell Aim: The Aim of this investigation is to investigate the effect of exercise on pulse rate. Variables: ? Pace of exercise - this can affect the investigation because the quicker the pace the higher the pulse rate and vice versa. ? Temperature - this can effect the investigation because the higher the temperature, while exercising, the harder it becomes to exercise. ? Type of exercise - this can effect the investigation because certain exercises are more demanding than others therefore increasing the heart rate. ? Length of time of exercise - this can effect the investigation because the longer you are exercising for the higher the heart rate will become. ? Fitness of person - If the person is particularly fit their resting heart rate will be lower. Also if they are extremely fit, short time of exercise should not show a great effect on the heart rate. ? Dietary concerns - If the person jogging had eaten or drunk a stimulant that could contain lots of glucose or caffeine, e.g. ...read more.


Apparatus: ? Stop watch ? Sensible and safe shoes. Safety: During the experiment, there are no major safety hazards, although I have conducted a list to follow to ensure safety: ? Clear ample space required (in the lab) for the exercise. ? Make sure the floor is not slippery or hazardous in any way. ? Make sure sensible shoes are worn (trainers.) Method i. Firstly take resting pulse rate three times and record the results. To take my heart rate I will find my pulse on my wrist or neck. I will then time 30 seconds while simultaneously counting the pulse. I will then double this to get one minutes worth. ii. Next jog on the spot for the selected amount of time (i.e. 30, 60, 90, 120, 150 and 180. ) iii. Then take pulse rate and record the results. iv. Wait for pulse rate to return to resting rate, then repeat step ii and iii two more times. ...read more.


I think that exercising on a piece of equipment like a running machine would produce more accurate results because I would be able to guarantee that the exercise remained constant throughout this experiment. Jogging on the spot is not reliable as the pace can change easily. Furthermore the experiment was taken over two days,(this is because our lessons are not long enough) this could have altered the results as pace and energy levels could have changed. So if I was to do it again, I would arrange a suitable time slot so that the experiment was completed as fairly as possible Finally, an actual 'pulse-meter' might have helped the experiment to be more accurate. This is simply strapped round the chest of the person during exercise and measures your current heart rate. I believe that this would produce a more accurate heart rate and destroyed the problem of my heart going back to resting rate. To further the experiment I could look at a different range of activities and have a wider range of times. This would allow me to make a fully valid comment. ...read more.

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