Effect of Exercise on Arterial Pressure and Vascular Resistance: Laboratory Report

810 Words Jun 18th, 2012 4 Pages
LABORATORY REPORT
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Activity: Name: Instructor: Date:

Effect of Exercise on Arterial Pressure and Vascular Resistance Abbie DeBerg Ms. Brantley May 30, 2012

Predictions
1. During exercise increase. 2. During exercise decrease. 3. During exercise increase.

Materials and Methods
1. Dependent Variable HR, SV, BP 2. Independent Variable level of activity 3. Controlled Variables age, gender

4. Identify one variable that was not controlled in this study (not dependent or independent variables; hint: think aboutpossible differences between subjects). weight? 5. SVR was calculated using values for BP, CO, and HR. What instrument was used to measure each of the
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Resting and Exercising MAP – a. What was the average resting MAP? 96 b. What was the average exercising MAP? 105.3 c. The range of normal resting MAP for the subjects in this experiment is 88-98 mmHg. Did MAP increase, decrease, or not change with exercise? increase

4. Resting and Exercising CO – a. What was the average resting CO? 5.6 b. What was the average exercising CO? 15.5 c. The range of resting CO for the subjects in this experiment is 4.55-5.55 L/min. Did CO increase, decrease, or not change with exercise? increase

5. Resting and Exercising SVR – a. What was the average resting SVR? 17.1 b. What was the average exercising SVR? 6.8 c. The range of resting SVR for the subjects in this experiment is 10.2-12.03 mmHg per min/L. Did SVR increase, decrease, or not change with exercise? decrease

Discussion
1. Explain what caused the observed changes in systolic BP and MAP with exercise. Exercise causes vessels to dialatecausing increased BP and MAP. 2. Compare the resting and exercising systemic vascular resistance values and discuss what causes the observed change with exercise. There is less vascular resistance when exercising,

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