Next Article in Journal
Real-Time Challenging of ERα Y537S Mutant Transcriptional Activity in Living Cells
Next Article in Special Issue
Exercise as a Therapeutic Intervention in Gestational Diabetes Mellitus
Previous Article in Journal
A Partial Phenotype of adFNDI Related to the Signal Peptide c.55G>A Variant of the AVP Gene
Article

The Effect of High-Intensity Exercise on Changes in Salivary and Serum Cortisol Proportion Dynamics

Department of Kinesiology, School of Health and Human Sciences, University of North Carolina at Greensboro, Greensboro, NC 27402, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Antonio Brunetti
Received: 7 January 2021 / Revised: 16 February 2021 / Accepted: 19 February 2021 / Published: 23 February 2021
(This article belongs to the Special Issue Exercise Endocrinology)
Typically, salivary cortisol is reported as 5–10% of total cortisol, but the stability of this proportion and the effect of exercise on the 24-h profile is unclear. Therefore, this study investigated the circadian rhythm of the proportion of serum cortisol represented by salivary cortisol, and the impact of acute high-intensity exercise. Recreationally trained males (n = 8, age = 25.7 ± 2.4 years, height = 174.7 ± 7.8 cm, mass = 69.8 ± 12.1 kg) completed two 24-h profiles (rest and exercise conditions) for serum (Q60) and salivary (Q120) cortisol. Exercise consisted of 5 × 30 s sprinting intervals on the cycle ergometer. Cortisol was assessed using commercially available assays. The proportion (Cprop) of serum cortisol (Cser) represented by salivary cortisol (Csal) was calculated as [Cprop = Csal/ Cser × 100]. Multilevel growth models tested for trends across the 24-h profile. The highest relation between Cser and Csal was observed at 08:00 AM (r = 0.90). The average Cprop was 5.95% and demonstrated a circadian profile characterized by a cubic model. Acute exercise did not alter Cser, Csal, or Cprop. Thus, the proportion of Cser represented by Csal changes across a 24-h period and should be accounted for if using salivary cortisol to reflect circadian output of cortisol. View Full-Text
Keywords: steroids; circadian; diurnal; cycling steroids; circadian; diurnal; cycling
Show Figures

Figure 1

MDPI and ACS Style

Anderson, T.; Berry, N.T.; Wideman, L. The Effect of High-Intensity Exercise on Changes in Salivary and Serum Cortisol Proportion Dynamics. Endocrines 2021, 2, 44-53. https://0-doi-org.brum.beds.ac.uk/10.3390/endocrines2010005

AMA Style

Anderson T, Berry NT, Wideman L. The Effect of High-Intensity Exercise on Changes in Salivary and Serum Cortisol Proportion Dynamics. Endocrines. 2021; 2(1):44-53. https://0-doi-org.brum.beds.ac.uk/10.3390/endocrines2010005

Chicago/Turabian Style

Anderson, Travis, Nathaniel T. Berry, and Laurie Wideman. 2021. "The Effect of High-Intensity Exercise on Changes in Salivary and Serum Cortisol Proportion Dynamics" Endocrines 2, no. 1: 44-53. https://0-doi-org.brum.beds.ac.uk/10.3390/endocrines2010005

Find Other Styles

Article Access Map by Country/Region

1
Back to TopTop