Blood Pressure And Heart Exercise Experiment

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The purpose of this exercise laboratory experiment was to, analyse and observe the role that exercise plays in affecting the blood pressure and heart rate of a patient, with and without the consumption of caffeine. In this experiment, a cycle ergometer (Monark 824E, Monark Exercise, Sweden) was used in an incremental style type exercise that measured the fourteen healthy participants blood pressure and heart rate at various interval stages. The blood pressure and heart rate were recorded in order to obtain an understanding of the impact this would have on the cardiovascular system. The experiment initially revealed that the participants who consumed caffeine before the experiment had a very slight differential increase in results compared
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During exercise, the muscles being activated are obtaining an increased workload. In result of this workload, the muscles require an increased support and therefore would require for an increase in oxygen demand (Macdougall, 2008). Production of nutrients and removal of wastes are metabolically processed quickly and therefore leading to an increase in body temperature (Macdougall, 2008). Consuming caffeine can also cause an effect on the cardiovascular system in similar ways. When caffeine is consumed, it causes the neurotransmitter – adenosine – to be blocked from being released, thus causing a prevention of the calming effect on the body. This in turn, leads to the release of adrenaline, which causes an increase in heart rate as well as muscle contractility. The body would release the excess glucose and be used for extra energy (Daniels, 1998). Many studies on caffeine and exercise has indeed noted that if best chance of obtaining results with caffeine, individuals should consume one hour prior to exercise as this is the peak time of glucose absorption. Studies have also shown that it is not necessary that caffeine consumption will affect the cardiovascular system as some individuals may not experience any changes in blood or heart levels (Arnold, 2007). The significant cardiac parameters that are effected by exercise and important in maintaining regulatory levels are blood pressure and heart …show more content…
The demand for blood was increased during the exercise that it led to an increased pressure in the blood vessels, which are in control for blood transport (Nobrega, 1994). Due to an increase in exercise intensity, the contractions of the heart are more forceful and thus leading to an increase in the systolic blood pressure. If the systolic blood pressure is abruptly dropped in response to increased activity, then there could be a pathological issue with the pumping of the heart (Nobrega, 1994). However, this was not a problem in this exercise as each participant exposed an increased but normal systolic blood pressure in response to exercise intensity levels. On the other hand, the diastolic blood pressure usually maintains the same level in terms of value. It has been studied that maximum fluctuations ranging between 10 to 20mmgh above or below the initial diastolic blood pressure value are also normal and can be observed in some cases when recording blood pressure (Miyai, 2001). Results did indicate a fluctuation during the post-exercise stage but it was indicative of a normal diastolic blood

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