Time kinetics of the endocrine response to acute psychological stress.
A first-time parachute jump was chosen as a model to evaluate the endocrine response to acute psychological stress. In 43 inexperienced tandem parachutists, blood was drawn continuously from 2 h before to 1 h after the jump and analyzed at 10-min intervals for plasma concentrations of epinephrine (E), norepinephrine (NE), cortisol, GH, PRL, and TSH. In addition, heart rate was recorded throughout the experiment. There was a significant increase in heart rate and E concentrations during the jump itself. NE, cortisol, GH, PRL, and TSH peaked with a latency of 10-20 min. Apart from cortisol and TSH concentrations, which were still elevated 1 h after the stress event, plasma levels of the other endocrine variables normalized within 1 h following the jump. Statistically significant cross-correlations could be observed between E and NE (r = 0.60, no time lag) and between E and PRL (r = 0.58, 10-min time lag) only. Even in a very homogenous group of subjects and under well-controlled conditions, endocrine responses to acute psychological stress show considerable variations.
Richter
S D
SD
Division of Endocrinology, Hannover Medical School, Germany.
Schürmeyer
T H
TH
Schedlowski
M
M
Hädicke
A
A
Tewes
U
U
Schmidt
R E
RE
Wagner
T O
TO
D000328:Adult; D004837:Epinephrine / Q000097:blood; D013006:Growth Hormone / Q000097:blood; D006339:Heart Rate; D006728:Hormones / Q000097:blood*; D006801:Humans; D006854:Hydrocortisone / Q000097:blood; D007700:Kinetics; D008297:Male; D009638:Norepinephrine / Q000097:blood; D011388:Prolactin / Q000097:blood; D013315:Stress, Psychological / Q000097:blood*; D013972:Thyrotropin / Q000097:blood
D006728:Hormones; D011388:Prolactin; D013972:Thyrotropin; D013006:Growth Hormone; D006854:Hydrocortisone; D009638:Norepinephrine; D004837:Epinephrine