Alterations of postawakening cortisol parameters during a prolonged stress period: Results of a prospective controlled study

Hormones and Behavior
Ulrike Weik, Renate Deinzer

Abstract

Though postawakening cortisol is considered to be altered under chronic stress prospective studies proving this assumption is missing, so far. Furthermore, there is some uncertainty which aspects of postawakening cortisol alterations are strongest related to stress. The present study thus analyzed the cortisol concentration at awakening itself (0 min), the cortisol awakening response (CAR; i.e. the increase within 30 min after awakening), the area under the curve of the first hour after awakening (AUC(G)60) and the mean of samples taken 0 min and 30 min after awakening (AUC(G)30) in 12 exam students, participating in a major exam and 12 matched control students not participating in any exam. Saliva samples were taken on two consecutive days at 0, 15, 30, 45, and 60 min after awakening, respectively, at four time points (T1-T4): on the verge of exams, when students anticipated and prepared the exam (T1), in the middle of exams (T2), and shortly after (T3). T4 (weeks after exams) represents a reference measure. Repeated measures analyses of covariance revealed a significantly higher AUC(G)30 (p=0.007) and AUC(G)60 (p=0.011) and higher cortisol concentrations at awakening (p=0.016) in exam students and a significant time by group ...Continue Reading

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Citations

Sep 3, 2013·Stress : the International Journal on the Biology of Stress·Hongxia DuanJianhui Wu
Jan 30, 2015·BioPsychoSocial Medicine·Nagisa SugayaHironori Shimada
Jul 28, 2012·Journal of Strength and Conditioning Research·Miguel M DíazFoued S Espindola
Mar 25, 2017·Annals of Behavioral Medicine : a Publication of the Society of Behavioral Medicine·Antonio F GarciaDeborah L Mangold
Mar 27, 2018·Infancy : the Official Journal of the International Society on Infant Studies·Anne E Kalomiris, Elizabeth J Kiel
Sep 6, 2021·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Cassie FivesYvonne M Nolan

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