1Chemistry in Sport – YSCN0027 Laboratory 2 – Heart rate response to exerciseAim:To measure heart rate during exercise, to understand the relationship between heart rate and workload and use this relationship to estimate maximal oxygen consumption (max2OV). Equipment:Cycle ergometer Heart rate monitor Stopwatch Weighing scales READ AND UNDERSTAND THE METHOD BEFORE STARTING THE EXPERIMENT. Subjects:Work in groups of 4. All members of the group must act as a subject. Before participating the subject must complete a PAR-Q formwhich will be provided at the lab session. It is responsibility of the other members of the group (the experimenters) to make sure this happens. Procedure:1.Weigh your subject in light clothing, without shoes. 2.Ensure that the seat height of the cycle ergometer is adjusted to the correct height for the subject. That is, when the subject can place the heel of their foot on the pedal at its lowest point and their leg is straight, with the ball of their foot on the pedal during this phase of the pedal revolution their leg will be slightly bent. 3.Have the subject fit the transmitter belt for the heart rate monitor as follows: 4.Sit the subject on the cycle ergometer and start the heart rate monitor. The starting instructions vary with the model and will be explained in the laboratory. How to put the transmitter on a.Moisten the electrode areas of the strap under running water and make sure that they are well moistened. b.Attach the connector of one side of the strap and snap the fastener. c.Adjust the strap length to fit snugly and comfortably. Secure the strap around your chest, just below the chest muscles, and snap the second fastener. d.Check that the wet electrode areas are firmly against your skin and that the Polar logo of the connector is in a central, upright position.
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