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How does exercise effect pulse rate? Hypothesis During a period of exercise pulse rate will increase. Plan I will need only a stopwatch and no other apparatus for my experiment. I will rest for five minutes and then take my resting pulse rate and record it. I will rest to make sure that it is fair and that my pulse has not been raised by anything. I will then do step up exercises for five minutes on a 10cm step and rest for five minutes after that. I will take my pulse every minute during the exercise and every minute for five minutes afterwards to find my recovery rate. To make the test safe I will make sure that I drink plenty of water and wear trainers to protect my ankles from injury. The variables which I will keep the same to make it a fair test are the period of time for which...

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