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Sprint Breathing Rate

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For persons 1-3, as predicted, the heartrate and breathing rate were relatively low with Person 1, respectively, being 74 & 20, Person 2 being 86 & 16 and Person 3 being 73 and 19. The 50m Sprint resulted in having the highest heartrate for persons 1 and 2, 152 and 171 respectively, and the Stairs resulted in being the highest for Person 2 at 130. Strangely, the breaths per minute for persons 1 and 2 were highest, at 40 and 39 respectively, whereas Person 3 experienced their highest breaths at 43 for the 50m Sprint, which coincides with their highest heart rate. These trends show that the hypothesis is correct in the sense that the heart and breathing rate did increase with physical exercise, however, the hypothesised theory that the Sprint …show more content…

When exercise is undertaken more oxygen is used for the necessary organs, therefore resulting in CO2, once a gas exchange has occurred. When put under stress the body responded by increasing the heart rate, by enlarging the arterioles and venules to allow more oxygenated blood to flow to the necessary muscles and decreasing the size of ones that weren’t as important. In order to keep up with the demand for oxygenated blood, the breathing rate increased drastically. The method was relatively effective for recording the necessary data. However, some modifications had to be made such as: the amount of laps on the stairs. This changed to two laps, as once was believed to not provide enough varying data. The method could have been improved by ensuring that, once completed, the person performing was at or very close to their resting heart and breathing rate before commencing the next exercise as this would be one factor in providing inaccurate results. Another improvement is that, rather than running a certain amount of time (stairs), the person would run for a length of time and then test their heart and breathing rate as some people may not finish, and therefore put their body through enough stress, to provide difference within their

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