Type of Document	Master's Thesis
Author	Hemesath, Susan M.
URN	etd-06102009-063023
Title	Effects of acute aerobic exercise on cardiovascular reactivity to stress in healthy, untrained males
Degree	Master of Science
Department	Health and Physical Education
Advisory Committee	Advisor Name Title Southard, Douglas R. Committee Chair Denbow, Donald Michael Committee Member Herbert, William G. Committee Member Humphrey, Reed H. Committee Member
Keywords	Cardiovascular system
Date of Defense	1990-06-15
Availability	restricted
Abstract This investigation assessed the effects of acute aerobic exercise (AE) on cardiovascular reactivity (CVR) to a non-exercise stressor. Nineteen untrained, healthy male volunteers were stratified on diastolic blood pressure (DBP) response to the cold pressor test (CPT), then randomly assigned to either a minimal exercise condition (5 min of freewheel cycling) or 30 min of exercise on a bicycle ergometer at 55-60% V02max. Heart rate (HR) and BP were monitored during the resting, arousal, and recovery phases of the CPT at 1 hr, 3 hr, and 24 hr post-exercise. Results revealed statistically non-significant response and recovery effects; however, two important trends emerged. The 30 minute exercise group exhibited a tendency toward a reduced DBP response to the CPT during the 1 hour post-exercise session (p=0.08) and SBP response to the CPT was lower in the 30 minute exercise group at 3 hours post-exercise (p=0.08). These findings provide only minimal support for the effectiveness of 30 minutes of AE at 55-60% V02max in attenuating physiological response to the CPT in untrained males.
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