Aerobic Fitness Affects Cardiovascular and Catecholamine Responses to Stressors

摘要: Subjects of varying degrees aerobic fitness were subjected to four laboratory stressors in a test the hypothesis that is associated with decreased responsiveness other than exercise. Blood pressure, heart rate, norepinephrine, epinephrine, and psychological responses film industrial accidents (passive stressor), Stroop word color task (active cold pressor physical running exhaustion on treadmill stressor) measured. Baseline systolic blood pressure relative diastolic film, task, exercise smaller fit subjects over 40 less same age group. Heart rates lower at most times, except during after maximal Norepinephrine was 9 min subjects, but much higher exhaustion, these had accomplished more work. levels fell rapidly not different among groups 3 10 There no preferential generalization “fitness effect” active task.