CARDIOVASCULAR REACTIVITY IN THE LABORATO RY AND IN THE FIELD - THE RELEVANCE OF DIFFERENT REACTIVITY PARAMETERS IN THE ANALYSIS OF DAILY-LIFE DATA

In this study, different models explaining the relationship between ca rdiovascular reactivity in the laboratory and in the field were tested using different parameters of cardiovascular reactivity for the field data. The data of 18 young, healthy male volunteers, who were selecte d as 2 extreme groups according to their responsiveness to a behaviora l laboratory stressor, showed an elevated level of diastolic blood pre ssure throughout the day in the high reactors, that was not present du ring the night. For heart rate and rate pressure product there was no group difference in the overall level, but the high reactors showed st ronger responses to single stress situations occurring during the day. For systolic blood pressure no difference between high and low reacto rs was seen.