The Effect of Exercise on Heart Rate

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The Effect of Exercise on Heart Rate Introduction This assignment is intended to determine what the effects of exercise will have on your heart rate. We are going to do this experiment by using a data logger to record the results we receive. This can then be transferred to a computer and results can be made into graphs and charts. A data logger works by first being connected to a computer. Then software is used to select start times finish times and when to take measurements. The logger is then disconnected and attached to the person. The logger records each measurement and stores it in memory along with the time. The logger is then reconnected to the computer and the software is used to retrieve the data and see the measurements as a graph, and charts. Data loggers are extremely efficient because they are very small and usually battery powered for ease of use. The exercise I will use will be a step-up machine, this is because it is the most accurate way of exercise as it is at the same pace throughout and can be kept at the same difficulty level. As the body is exercising the cells need oxygen quicker therefore the heart has to pump the oxygenated blood around the body quicker than normal and this makes the heart rate increase. Most cells in the body need oxygen to function correctly, when we exercise the cells need more energy and oxygen so that the muscles which help us to complete the exercise can move by muscle contraction. The energy which we need for muscle contraction comes from food molecules inside cells, this is a process which is known as respiration. The main respiratory substance is glucose and the energy released is used for the muscle contraction that we need to exercise. When we do anything are body is releasing energy to help us to fulfil what we are doing. Even the simplest actions need energy. When we start to exercise we use aerobic respiration, this takes place in the
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