Title page for ETD etd-06102009-063023


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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