The aim of this study was to analyse the changes of baroreflex sensitivity ( @entity4375 ) and their relation to changes of heart rate and blood pressure in medical students during moderate @entity1642 brought about by oral examination. The changes of @entity4375 during the stress were compared with the changes during light physical exercise. Thirty three students were examined 30 min before and 30 min after the exam. Thirty-nine students of control group were examined at rest and during light exercise. Blood pressure was noninvasively recorded by @entity8907  z method at rate-controlled breathing (0.33 Hz). The @entity4375 [ms/mm Hg] and BRSf [Hz/mm Hg] were calculated by spectral analysis of spontaneous fluctuations of blood pressure and inter-beat intervals (IBI). @entity4375 before examination (7.12 ms/mm Hg) was significantly lower than after the oral exam (8.77 ms/mm Hg, p<0.05). The difference between @entity4375 in the test group after the oral exam and the control group at rest (10.78 ms/mm Hg) was not significant. @entity4375 during light exercise (7.44 ms/mm Hg) corresponded to the value during @entity1642 . The values of BRSf did not change during @entity1642 (before: 0.0182 Hz/mm Hg; after: 0.0182 Hz/mm Hg) and exercise (rest: 0.0158 Hz/mm Hg; exercise: 0.0144 Hz/mm Hg). Correlation between @entity4375 or BRSf and blood pressure were not found. A significant negative correlation (r=-0.404, p<0.05) between BRSf and the increase of diastolic blood pressure during stress was observed. It is concluded that BRSf remained constant during @entity1642 and exercise, and differed essentially from that in @entity101 subjects.

Baroreflex sensitivity during XXXX .

@entity101 :: ('MESH:D006973', 'Disease') :: ['hypertensive'] @entity1642 :: ('MESH:D015775', 'Disease') :: ['psychological stress'] @entity4375 :: ('11246', 'Species') :: ['BRS'] @entity8907 :: ('340348', 'Gene') :: ['Pen']
@entity1642 :: (MESH:D015775,Disease) :: ['psychological stress']
