Relationship between stress hormones and testosterone with prolonged endurance exercise

@article{Daly2004RelationshipBS,
  title={Relationship between stress hormones and testosterone with prolonged endurance exercise},
  author={Will Daly and Cynthia A Seegers and Daniela A. Rubin and Jennifer D. Dobridge and Anthony C. Hackney},
  journal={European Journal of Applied Physiology},
  year={2004},
  volume={93},
  pages={375-380}
}
Previous pharmacological and pathological studies have reported negative relationships between circulating testosterone and certain stress hormones (i.e., cortisol and prolactin) in humans. These relationships have subsequently been used in hypotheses explaining the subclinical resting testosterone levels often found in some endurance-trained males, but as of yet no one has specifically examined these relationships as they relate to exercise. Thus, we examined the relationship between total and… 

Figures and Tables from this paper

Relationship between circulating cortisol and testosterone: influence of physical exercise.
TLDR
The findings indicate that exercise does allow the development of a significant negative relationship between C and TT and after certain types of physical exercise a negative statistical associative relationship exist between cortisol and total testosterone.
Thyroid hormones and the interrelationship of cortisol and prolactin: influence of prolonged, exhaustive exercise.
TLDR
Exhaustive exercise decreases select thyroid hormones by 24 hours into recovery, cortisol responses are inversely related to these thyroid reductions, and prolactin responses (increases) are directly related to TSH changes.
Acute Response to Endurance Exercise Stress: Focus on Catabolic/anabolic Interplay Between Cortisol, Testosterone, and Sex Hormone Binding Globulin in Professional Athletes
TLDR
It seems that high intensity endurance exercise favors catabolic response, but the level of response highly depends on a previous level of training.
THE EFFECT OF ENDURANCE RUNNING ACTIVAITES ON PROLACTIN, TESTOSTERONE AND DHEA-S LEVELS
TLDR
Investigation show running up to 30 minutes as a endurance condition could increase serum DHEA-S and prolactin levels and decrease in serum testosterone level but they decrease to about fasting condition after three hours resting.
Testosterone Cortisol Ratio after Two Months Regular Training on Obese Female Students
TLDR
Considering the lower level of women in female compared to men, the concentration of this variable remains unchanged following two months of aerobic exercise, as a result, two weeks of exercise can not lead to stress on testosterone hormone.
Testosterone responses to standardized short-term sub-maximal and maximal endurance exercises: issues on the dynamic adaptive role of the hypothalamic-pituitary-testicular axis
TLDR
A 30-min sub-maximal endurance exercise acutely increased serum testosterone similarly to maximal exercise, but without cortisol increases, which is not correlated to exercise-intensity-related variables.
Cortisol and testosterone dynamics following exhaustive endurance exercise
TLDR
EES recovery may require 48 h for C and 72-h for fT to return to baseline values, and C and fT were only correlated immediately post-exercise.
Various Factors May Modulate the Effect of Exercise on Testosterone Levels in Men
TLDR
Although exercise increases plasma testosterone concentrations, this effect depends on many factors, including the aforementioned ones, and future studies should focus on clarifying the metabolic and molecular mechanisms whereby exercise may affect serum testosterone concentrations in the short and long-terms.
INFLUENCE OF PROLONGED EXERCISE ON THE 24-HOUR FREE TESTOSTERONE - CORTISOL RATIO HORMONAL PROFILE.
TLDR
Results suggest that the fTC ratio responds to intensive exercise, but that aspects of the response can be of a delayed nature occurring many hours into recovery.
Reproducibility of Acute Steroid Hormone Responses in Men to Short-Duration Running.
TLDR
RPETP induced greater testosterone changes (likely due to increased physiological strain) and could therefore be considered a more sensitive tool to potentially detect OTS and enhance its integration into practice.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 23 REFERENCES
Relationship of resting prolactin and testosterone in males during intensive training
TLDR
Preliminary findings have found a relationship between changes in resting serum prolactin and testosterone levels in males undergoing exercise training, which is similar to those put forth for females experiencing athletic amenorrhoea, a disruption of the hypothalamic-pituitary-gonadal axis.
Reproductive hormonal responses to maximal exercise in endurance-trained men with low resting testosterone levels.
  • A. Hackney, C. Fahrner, R. Stupnicki
  • Medicine, Biology
    Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association
  • 1997
TLDR
The ET men displayed an "atypical" response to exercise to that of UT men relative to this axis, and the hormonal changes of the UT men were viewed as "control--reference" responses within a functioning hypothalamo-pituitary-testicular regulatory axis.
Basal reproductive hormonal profiles are altered in endurance trained men.
TLDR
ET men have lowered basal T and fT levels and this suppression may be related to an alteration in the hypothalamic-pituitary-testicular regulatory axis since the LH of the ET was not elevated.
Endurance training decreases serum testosterone levels in men without change in luteinizing hormone pulsatile release.
TLDR
There was a significant reduction in weight, which did not correlate with changes in serum testosterone levels, and LH pulsatile release was not altered by training in the subset of 5 runners.
Reduced serum testosterone and prolactin levels in male distance runners.
TLDR
The mean levels of total and nonspecifically bound testosterone as well as prolactin were significantly lower than in controls, although levels remained within the physiological range.
Plasma hormones and physical exercise.
  • A. Viru
  • Psychology
    International journal of sports medicine
  • 1992
TLDR
Main traits of blood hormone responses to exercises are established: There are stable changes in hormone levels that are common to all persons, as well as changes which are characterized by a polyphasic pattern and exhibiting inter-individual variability.
Twenty-four-hour cortisol response to multiple daily exercise sessions of moderate and high intensity.
TLDR
The results indicate that daytime multiple exercise sessions produce suppressed cortisol levels at night, and the magnitude of this effect is dependent upon the intensity at which the daytime exercise is performed.
Cortisol-induced suppression of plasma testosterone in normal adult males.
TLDR
It was concluded that administration of cortisol leading to plasma levels as seen under treatment with ACTH suppresses testosterone by abolishing or flattening the nocturnal rise.
Study on the relationship between plasma prolactin levels and androgen metabolism in man.
TLDR
The interference of increased levels of PRL in the metabolism of testosterone into the active DHT form by 5alpha-reductase is demonstrated and it is suggested that this mechanism could possibly impair the gonadal function in man.
Acute suppression of circulating testosterone levels by cortisol in men.
TLDR
These findings suggest that hypercortisolism of endogenous or exogenous sources suppresses T secretion by a direct action on the testis, and this adrenal-testicular axis may have biological implications on the reproductive adaptation to stress.
...
1
2
3
...