Salivary Steroid Changes and Physical Performance in Highly Trained Cyclists

Calbet, J. A. L.; Navarro, Miguel; Barbany, Joan Ramon; Manso, Jacopo; Bonnin, M R; Valero, Jesús A.

doi:10.1055/s-2007-1021153

Cited by 21 publications

(9 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In relation to training, studies on a group of rugby-trained males, subjected to an identical training regime over the competition season, demonstrated that the training period induced a decrease in the resting sT concentrations, especially at 16:00 and 18:00 hours (Po0.01) (Elloumi et al, 2008). These observations are in agreement with other studies that found a decrease in plasma or sT concentrations after a few weeks of a training program, in relation to the volume, the intensity, the training load, and the type of sport (Lo´pez Calbet et al, 1993;De Souza et al, 1994;Lac et al, 1995;Filaire et al, 2001a;Kraemer et al, 2004;Coutts et al, 2007). Lac and Berthon (2000) reported variations in the sT and sF levels and the sT/sF ratio in long-distance runners during a relay competition and during the 3 days following the competition.…”

Section: Salivary Cortisol and Physical Exercisesupporting

confidence: 90%

An update: salivary hormones and physical exercise

Gatti

Palo

2010

Scandinavian Med Sci Sports

177

159

View full text Add to dashboard Cite

Saliva contains cells and compounds, of local and non-local oral origin, namely inorganic, organic non-protein, protein/polypeptide, and lipid molecules. Moreover, some hormones, commonly assayed in plasma, such as steroids, are detectable in oral fluid and peptide/protein, and non-steroid hormones have been investigated. The sports practice environment and athletes' availability, together with hormone molecule characteristics in saliva and physical exercise behavior effects, confirm this body fluid as an alternative to serum. This review focuses on the relation between salivary steroids and psycho-physiological stress and underlines how the measurement of salivary cortisol provides an approach of self-report psychological indicator and anxiety change in relation to exercise performance. The correlation between salivary and plasma steroid hormone (cortisol, testosterone, and dehydroepiandrosterone (DHEA)) levels, observed during exercise, has been considered, underlining how the type, duration, and intensity of the exercise influence the salivary steroid concentrations in the same way as serum-level variations. Training conditions have been considered in relation to the salivary hormonal response. This review focuses on studies related to salivary hormone measurements, mainly steroids, in physical exercise. Saliva use in physical disciplines, as a real alternative to serum, could be a future perspective.

show abstract

Section: Salivary Cortisol and Physical Exercisesupporting

confidence: 90%

An update: salivary hormones and physical exercise

Gatti

Palo

2010

Scandinavian Med Sci Sports

177

159

View full text Add to dashboard Cite

show abstract

“…Given the positive correlations between blood and saliva values at rest, the influence of physical exercise on HPA has been determined using saliva cortisol and DHEA measurements in a number of studies [8][9][10][11]. However, few studies [12][13][14][15][16] have sought to determine whether the relationship between blood and saliva cortisol concentrations is maintained during exercise, and only one [12] tested the correlation between blood and saliva DHEA in response to exercise.…”

Section: Introductionmentioning

confidence: 97%

Correlation between plasma and saliva adrenocortical hormones in response to submaximal exercise

et al. 2010

View full text Add to dashboard Cite

This study examined the relationships between plasma and saliva adrenocortical hormones in response to long-duration submaximal exercise. In nine healthy, physically active, female volunteers, blood and saliva samples were taken at rest and every 30 min during a 120-min cycling trial at 50-55% VO(2max) for cortisol and dehydroepiandrosterone (DHEA) analysis. Correlation analysis revealed a moderate but significant relationship between plasma and saliva cortisol (r = 0.35, P < 0.02) and plasma and saliva DHEA (r = 0.47, P < 0.001) during the submaximal exercise. When expressed in percent of resting values, the correlations between the plasma and saliva concentrations were higher for both hormones during the exercise (cortisol: r = 0.72; DHEA: r = 0.68, P< 0.001). The results thus suggest that, even under prolonged exercise conditions, non-invasive saliva samples may offer a practical approach to assessing pituitary-adrenal function, especially when compared with individual basal values.

show abstract

“…Levels were restored to normal following 6 weeks of training, suggesting an adjustment to training on LH secretion in the endocrine system that was associated with negative feedback. Even though testosterone reduction during aerobic training has not been clearly demonstrated, it is possible that a certain amount of time is necessary for the endocrine system to adapt to the volume and intensity of training when these factors exceed a certain stimulus threshold (Calbet et al, 1993;Maïmoun et al, 2003). Though high-volume physical training may result in the suppression of testosterone via direct inhibition due to the effect of cortisol on the testes (Brownlee et al, 2005), this does not completely explain the occurrence of testosterone reduction with aerobic training, given that increases in basal cortisol levels and the consequent testicular suppression are most commonly related to overtraining.…”

Section: Changes In Circulating Testosterone In Response To Aerobic Tmentioning

confidence: 99%