Decreased serum levels of oestradiol, testosterone and prolactin during prolonged physical strain and sleep deprivation, and the influence of a high calory diet
- 111 Downloads
The changes in oestradiol, testosterone and prolactin, and the effects of a high calory diet, were investigated in eleven young male cadets participating in a 5 days' ranger training course involving heavy and continuous physical activities with less than 1500 kcal·day−1 and almost without sleep.
Prolactin decreased continuously during the first 24 h to 25% of precourse values. Testosterone decreased during the day time and reached below 25% of precourse values after 48 h. Oestradiol did not change during the first 48 h but then decreased to about 50% of precourse values. In conclusion, oestradiol, testosterone and prolactin are strongly reduced during prolonged strain. These changes were not reversed by a high calory diet.
Key wordsPhysical exercise Calory deficiency Sleep deprivation Stress Prolactin Testosterone Oestradiol
Unable to display preview. Download preview PDF.
- Aakvaag A, Bentdal Ø, Ouigstad K, Walstad P, RØnningen H, Fonnum F (1978a) Testosterone and testosterone binding globulin (TeBG) in young men during prolonged stress. Int J Androl 1: 22–23Google Scholar
- Aakvaag A, Sand T, Opstad PK, Fonnum F (1978b) Hormonal changes in young men during prolonged physical strain. Eur J Appl Physiol 39: 283–291Google Scholar
- Adlerkreutz H, HÄrkönen M, Kuoppasalmi K, Kosunen K, NÄveri H, Rehunen S (1976) Physical activity and hormones. Adv Cardiol 18: 144–157Google Scholar
- Carstensen H, Amer B, Amer I, Wide L (1973) The postoperative decrease of plasma testosterone in man, after major surgery, in relation to plasma FSH and LH. J Steroid Biochem 4: 45–55Google Scholar
- Dessypris A, Kuoppasalmi K, Adlerkreutz H (1976) Plasma cortisol, testosterone, androstenedione and luteinizing hormone (LH) in a noncompetitive marathon run. J Steroid Biochem 7: 33–37Google Scholar
- Fosså SD, Fosså J, Aakvaag A (1977) Hormone changes in patients with prostatic carcinoma during treatment with estramustine phosphate. J Urol 118: 113–118Google Scholar
- Galbo H, Hummer L, Petersen IB, Christensen NJ, Bie N (1977) Thyroid and testicular hormone response to graded and prolonged exersion in men. Eur J Appl Physiol 36: 101–106Google Scholar
- Griffin JE, Wilson JD (1980) The syndromes of androgen resistance. N Engl J Med 302: 198–209Google Scholar
- Kreutz LE, Rose RM, Jennings JR (1972) Suppression of plasma testosterone levels and psychological stress. Arch Gen Psychiatry 26: 479–482Google Scholar
- Lamb DR (1975) Androgens and exercise. Med Sci Sports 7: 1–5Google Scholar
- MacDonald PC, Madden JD, Brenner PF, Wilson JD, Siiteri PK (1979) Origin of estrogen in normal men and women with testicular feminization. J Clin Endocrinol Metab 49: 905–916Google Scholar
- Nakashima A, Koshiyama K, Uozumi T, Monden Y, Hamanaka Y, Kurachi K, Aono T, Mizutani S, Matsumoto K (1975) Effects of general anaesthesia and severity of surgical stress on serum LH and testosterone in males. Acta Endocrinol (Copenh) 78: 258Google Scholar
- Naess O, Haug E, Attramadal A, Aakvaag A, Hansson V, French F (1976) Androgen receptors in the anterior pituarity and central nervous system of the androgen “insensitive” (Tfm) rat: Correlation between receptor binding and effects of androgens on gonadotropin secretion. Endocrinology 99: 1295–1303Google Scholar
- Opstad PK, Aakvaag A (1981) The effect of a high caloric diet on hormonal changes in young men during prolonged physical strain and sleep deprivation. Eur J Appl Physiol 46: 31–39Google Scholar
- Rutlin E, Haug E, Torjesen PA (1977) Serum thyrotropin, prolactin and growth hormone, response to TRH during oestrogen treatment. Acta Endocrinol (Copenh) 84: 23–35Google Scholar
- Siiteri RK, MacDonald PC (1973) Role of extraglandular estrogen in human endocrinology. In: Malley BO, Astwood EB (eds.) Handbook of physiology. Williams and Wilkins, Baltimore, p 615Google Scholar
- Sundsfjord JA, StrØmme SB, Aakvaag A (1975) Plasma aldosterone (PA), plasma renin activity (PRA) and Cortisol (PF) during exercise. Res Steroids 6: 133–140Google Scholar
- Sutton JR, Coleman MJ, Casey J, Lazarus L (1973) Androgen responses during physical exercise. Br Med J 1: 520–522Google Scholar