Blood Pressure Report

Blood Pressure Report
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Professor I. Introduction According to Marieb & Hoehn (2018), blood pressure (BP) is the amount of force exerted by the blood per unit area of the arterial walls. It can be classified into systolic blood pressure (SBP) and diastolic blood pressure (DBP). SBP is the force exerted by the heart against the blood vessel walls during each contraction, while the DBP is the resting pressure of the heart in between each contraction during a cardiac cycle. It can be computed as the product between cardiac output (CO) and systemic vascular resistance (SVR).Factors Affecting Blood PressureBased on the formula, the factors that affect BP are CO and SVR. The cardiac output (CO) depends on the amount of blood circulating in each contraction every minute. Hence, this can be computed by multiplying the stroke volume (SV) by the pulse rate (PR). The SV is the blood volume circulates throughout the body in each heart contraction. It can be quantified by subtracting the end-diastolic volume (EDV) from the end-systolic volume (ESV). Conversely, the PR is the number of times the heart beats per minute. Since BP is directly proportional to the CO, an increase in any of the SV or PR also increases BP. On the other hand, the SVR is influenced by three factors, including blood viscosity and the length and diameter of the arterial walls (Klabunde, 2017).The ExperimentObjectives and Hypothesis The experiment aims to identify the amount of stress exerted by the body on the heart when assuming different positions, performing the exercise, and exerting cognitive stress. The researcher hypothesizes that the BP shall increase when spelling words backward and forwards and decrease when assuming the dependent position for three minutes.Procedure The following were done chronologically:Resting. First, the subjects were seated and rested for three minutes. Second, the BP and PR of the subjects were taken while seated and recorded as the baseline. Third, the mean arterial pressure (MAP) was computed and recorded.Spelling words. First, the subjects were seated spelling words for two to three minutes. Second, the BP and PR of the subjects were taken after the task and recorded. Third, the MAP was computed and recorded.Immediately after standing up. First, the subjects stood up from their sitting position. Second, the BP and PR of the subjects were immediately after standing up. Third, the MAP was computed and recorded.After three minutes of standing up. First, the subjects stood up for three minutes. Second, the BP and PR of the subjects were taken after three minutes of standing up. Third, the MAP was computed and recorded. II. Data Gathering Table 1.SBP, DBP, and MAP of the subjects with the baseline, while spelling words, after immediately standing up, and after standing up Series1 Baseline sitting quietly Spelling Words (2-3 mins) Immediately upon standing (2 mins) Affter Standing (3 mins) 100 95 90 90