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What factors affect the pulse rate after exercise?

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Introduction

Coursework What factors affect the pulse rate after exercise? 15/11/01 Introduction: - As humans we need the heart to pump blood all around the body in order for us to live. We measure the rate of it, by measuring the pulse. We can measure pulse either on the inside of your wrist or the both sides of your neck. Pulse is taken in beats per minute usually, and depending on how much it is, we can take information on how fit and healthy you are. Pulse rates can vary from 60 up wards to about a 180 (this is the peak). In women the peak pulse rate is anything between 130-150, whereas in men the peak pulse rate is anything between 160-180 beats per minute. The factors that affect pulse rates are activity, fitness, age, and stress. The more beats your heart as beat out the more pressure you exert on your heart. ...read more.

Middle

and take the average. Prediction: -: I predict that the more prolonged my exercise becomes the longer it will take to get the pulse back to resting rate. I think in the duration of the exercise the pulse rate will increase and increase until it reaches a peak and then it will steady out. I also think that my fitness also is a major factor. This is because the body goes into a mode of anaerobic respiration. This is when the body begins to ventilate more (i.e.: breathe more) to accommodate the need of more oxygen in muscles, move the oxygen around your body faster and dispose the carbon dioxide. Also as you progress, lactic acid is produced. In order to break this acid down you need to breathe in oxygen, so it eventually breaks down into glucose and carbon dioxide. This process is called the "oxygen debt". The lactic acid that is produced is a mild poison that makes your muscles ache and cramp. ...read more.

Conclusion

This was due to the increased respiration happening within my body. Also athletes that specialise in running usually run in the mountains (the mountains have a higher altitude meaning less oxygen) increase the amount of haemoglobin in their body. This makes the intake of oxygen much easier. Method: The experiment in total took about fifteen minutes, ten minutes to prepare and five minutes to actually do the experiment. I set the stop-clock on my desk ready to press. I sat down on my bed and recorded my resting pulse rate for one minute. I recorded exactly 72 beats per minute. Making sure my clothes were ok, I started the stop-clock and jogged on the spot for one minute. I then stopped the clock at exactly one minute and took my pulse for a minute, after that I recorded how long it took for the pulse rate to revert back to my resting pulse rate. I repeated this process a further four times, and wrote the results down each time on my table of results. Diagram: ...read more.

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