Tags

Type your tag names separated by a space and hit enter

Basal Serum Cortisol and Testosterone/Cortisol Ratio Are Related to Rate of Na+ Lost During Exercise in Elite Soccer Players.

Abstract

During exercise, the human body maintains optimal body temperature through thermoregulatory sweating, which implies the loss of water, sodium (Na+), and other electrolytes. Sweat rate and sweat Na+ concentration show high interindividual variability, even in individuals exercising under similar conditions. Testosterone and cortisol may regulate sweat Na+ loss by modifying the expression/activity of the cystic fibrosis transmembrane conductance regulator. This has not been tested. As a first approximation, the authors aimed to determine whether basal serum concentrations of testosterone or cortisol, or the testosterone/cortisol ratio relate to sweat Na+ loss during exercise. A total of 22 male elite soccer players participated in the study. Testosterone and cortisol were measured in blood samples before exercise (basal). Sweat samples were collected during a training session, and sweat Na+ concentration was determined. The basal serum concentrations of testosterone and cortisol and their ratio were (mean [SD]) 13.6 (3.3) pg/ml, 228.9 (41.4) ng/ml, and 0.06 (0.02), respectively. During exercise, the rate of Na+ loss was related to cortisol (r = .43; p < .05) and to the testosterone/cortisol ratio (r = -.46; p < .01), independently of the sweating rate. The results suggest that cortisol and the testosterone/cortisol ratio may influence Na+ loss during exercise. It is unknown whether this regulation depends on the cystic fibrosis transmembrane conductance regulator.

Authors+Show Affiliations

Universidad Finis Terrae.Universidad Finis Terrae.Pontificia Universidad Católica de Chile.Centro de Formacion Tecnica Santo Tomas.Universidad Finis Terrae.Universidad de Los Lagos.Universidad Camilo José Cela.Universidad Finis Terrae.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31629352

Citation

Castro-Sepulveda, Mauricio, et al. "Basal Serum Cortisol and Testosterone/Cortisol Ratio Are Related to Rate of Na+ Lost During Exercise in Elite Soccer Players." International Journal of Sport Nutrition and Exercise Metabolism, 2019, pp. 1-6.
Castro-Sepulveda M, Cancino J, Fernández-Verdejo R, et al. Basal Serum Cortisol and Testosterone/Cortisol Ratio Are Related to Rate of Na+ Lost During Exercise in Elite Soccer Players. Int J Sport Nutr Exerc Metab. 2019.
Castro-Sepulveda, M., Cancino, J., Fernández-Verdejo, R., Pérez-Luco, C., Jannas-Vela, S., Ramirez-Campillo, R., ... Zbinden-Foncea, H. (2019). Basal Serum Cortisol and Testosterone/Cortisol Ratio Are Related to Rate of Na+ Lost During Exercise in Elite Soccer Players. International Journal of Sport Nutrition and Exercise Metabolism, pp. 1-6. doi:10.1123/ijsnem.2019-0129.
Castro-Sepulveda M, et al. Basal Serum Cortisol and Testosterone/Cortisol Ratio Are Related to Rate of Na+ Lost During Exercise in Elite Soccer Players. Int J Sport Nutr Exerc Metab. 2019 Oct 17;1-6. PubMed PMID: 31629352.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Basal Serum Cortisol and Testosterone/Cortisol Ratio Are Related to Rate of Na+ Lost During Exercise in Elite Soccer Players. AU - Castro-Sepulveda,Mauricio, AU - Cancino,Jorge, AU - Fernández-Verdejo,Rodrigo, AU - Pérez-Luco,Cristian, AU - Jannas-Vela,Sebastian, AU - Ramirez-Campillo,Rodrigo, AU - Del Coso,Juan, AU - Zbinden-Foncea,Hermann, Y1 - 2019/10/17/ PY - 2019/03/06/received PY - 2019/06/05/revised PY - 2019/06/05/accepted PY - 2019/10/20/entrez PY - 2019/10/20/pubmed PY - 2019/10/20/medline KW - dehydration KW - salty sweaters KW - sweat [Na+] SP - 1 EP - 6 JF - International journal of sport nutrition and exercise metabolism JO - Int J Sport Nutr Exerc Metab N2 - During exercise, the human body maintains optimal body temperature through thermoregulatory sweating, which implies the loss of water, sodium (Na+), and other electrolytes. Sweat rate and sweat Na+ concentration show high interindividual variability, even in individuals exercising under similar conditions. Testosterone and cortisol may regulate sweat Na+ loss by modifying the expression/activity of the cystic fibrosis transmembrane conductance regulator. This has not been tested. As a first approximation, the authors aimed to determine whether basal serum concentrations of testosterone or cortisol, or the testosterone/cortisol ratio relate to sweat Na+ loss during exercise. A total of 22 male elite soccer players participated in the study. Testosterone and cortisol were measured in blood samples before exercise (basal). Sweat samples were collected during a training session, and sweat Na+ concentration was determined. The basal serum concentrations of testosterone and cortisol and their ratio were (mean [SD]) 13.6 (3.3) pg/ml, 228.9 (41.4) ng/ml, and 0.06 (0.02), respectively. During exercise, the rate of Na+ loss was related to cortisol (r = .43; p < .05) and to the testosterone/cortisol ratio (r = -.46; p < .01), independently of the sweating rate. The results suggest that cortisol and the testosterone/cortisol ratio may influence Na+ loss during exercise. It is unknown whether this regulation depends on the cystic fibrosis transmembrane conductance regulator. SN - 1543-2742 UR - https://www.unboundmedicine.com/medline/citation/31629352/Basal_Serum_Cortisol_and_Testosterone/Cortisol_Ratio_Are_Related_to_Rate_of_Na+_Lost_During_Exercise_in_Elite_Soccer_Players L2 - https://journals.humankinetics.com/doi/10.1123/ijsnem.2019-0129 DB - PRIME DP - Unbound Medicine ER -