Salivary Immuno Factors, Cortisol and Testosterone Responses in Athletes of a Competitive 5,000m Race

Chia-Yang Li ； Gi-Sheng Hsu ； Katsuhiko Suzuki ； Miau-Hwa Ko ； Shih-Hua Fang

《The Chinese Journal of Physiology》 58卷4期 (2015/08) Pp. 263-269

https://doi.org/10.4077/CJP.2015.BAE367

並列摘要

The exercise-stress model can be a model of temporary immunosuppression that occurs after severe physical and psychological stress. It also allows for the study of interactions between the endocrine and the immune systems. This study examined changes in salivary hormonal and immune factors in athletes in response to physical and psychological stress in a 5,000m running competition. Eighteen endurance-trained runners (9 males and 9 females) participated in this study. All participants completed a competitive 5,000m race. Saliva samples were collected 10min before (PRE) and 10min after (POST) the competition. Saliva was analyzed for α-amylase activity, concentrations of salivary immunoglobulin A (SIgA), lactoferrin, cortisol, testosterone and total protein. Although the concentrations ofsalivary TP, SIgA, lactoferrin, cortisol and α-amylase activity were significantly increased immediately after a competitive 5,000m race, the secretion rates of these factors were not significantly altered in both male and female groups. Additionally, basal levels of SIgA and α-amylase activity were significantly higher in female runners than in male runners. This gender difference still existed after the race. The secretion rates of testosterone decreased significantly after the race in the male, but not in the female group. Moreover, testosterone-to-cortisol (T/C) ratios were significantly lower post-competition compared to pre-competition in both male and female athletes. The T/C ratio had been used as a performance index for athletes. Whether there are correlations between these changes of their physiological characteristics and better running performance need further investigations.

並列關鍵字

cortisol ； gender differences ； physical and psychological stress ； salivary immune factors ； testosterone

參考文獻

Allgrove, J.E.,Geneen, L.,Latif, S.,Gleeson, M.(2009).Influence of a fed or fasted state on the s-IgA response to prolonged cycling in active men and women.Int. J. Sport Nutr. Exerc. Metab..19,209-221.

Bozovic, D.,Racic, M.,Ivkovic, N.(2013).Salivary cortisol levels as a biological marker of stress reaction.Med. Arch..67,374-377.

Budde, H.,Windisch, C.,Kudielka, B.M.,Voelcker-Rehage, C.(2010).Saliva cortisol in school children after acute physical exercise.Neurosci. Lett..483,16-19.

Chatterton, R.T., Jr.,Vogelsong, K.M.,Lu, Y.C.,Ellman, A.B.,Hudgens, G.A.(1996).Salivary α-amylase as a measure of endogenous adrenergic activity.Clin. Physiol..16,433-448.

Costa, R.J.,Fortes, M.B.,Richardson, K.,Bilzon, J.L.,Walsh, N.P.(2012).The effects of postexercise feeding on saliva antimicrobial proteins.Int. J. Sport Nutr. Exerc. Metab..22,184-191.