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The effects of exercise on recovery time.

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Introduction

The effects of exercise on recovery time. Aims I am going to test how long it takes a persons heart rate to return to their resting hear rate after different periods of exercise. I will vary the time spent exercising each time and I will keep the intensity of the exercise constant. Preliminary Work During my preliminary work I tested how my heart rate reacted to different periods of exercise. I measured my resting heart rate at 77 bmp. Unfortunately the school does not own heart monitors so I had to take my pulse manually so this may not be accurate. Firstly I did step-ups for one minute at a set intensity, my heart rate was 117 bpm. Then I did step-ups for two minutes and measured my hear rate, it was 126 bpm. When I did the same exercise and intensity for five minutes my heart rate was 250 bpm. Because I thought that there was enough difference between my bpms I decided to use minutes for my exercise times. I will use one minute, two minutes, three minutes etc up to five minutes. ...read more.

Middle

* The room in which the exercise will be undertaken in will be kept at a constant temperature so that the subject will not lose more energy as heat on any particular day. * The heart rate of the exerciser will always be taken with the exerciser stood up straight. Health and Safety * I will not be using a person with medical difficulties meaning that they are unable to exercise, e.g. epilepsy or damaged leg muscles, to take part in this experiment. * I will give my subject a bottle of water each day after they have exercised to make sure that they do not dehydrate. * The exerciser should be wearing suitable shoes and clothes to undertake the exercises i.e. trainers and jogging pants. * I will allow the exerciser to hold onto a handrail to keep their balance. * I will make sure that the stepping block is not too high that they have difficulties. Prediction I think that the longer my person exercises for, the slower their recovery rate will be and therefore the longer their recovery time will be. ...read more.

Conclusion

The intensity of the exercise will be timed using the metronome. When the minute is up the exerciser will stand still and their recovery time will be timed using a stop clock and recorded. This will be from when the exerciser stops exercising to when their heart rate has returned to their resting heart rate. * The exerciser will wait five minutes after their heart rate has returned to normal to ensure that all the lactate in their body has been broken up and they will perform the same exercise, at the same intensity, for two minutes. Again after they have finished exercising their recovery time will be timed using a stop clock and recorded. They will wait a further five minutes after their heart rate has returned to normal. * The exerciser will repeat this routine for exercises lasting three, four and five minutes, each time their recovery time will be times and recorded and they will be given five minutes after their heart rate has returned to normal. * The exerciser will repeat the whole routine for five days, each time taking their resting heart rate before they begin using a heart monitor. The results will be averaged to obtain the final set of results. Claire Yarwood 11R Biology Coursework 09/09/2002 ...read more.

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