In order to test the possibility for rapid responses of blood hormone levels in short-term supramaximal exercises, serum concentrations of corticotropin (ACTH), cortisol (C), total testosterone (tT), free testosterone (fT), growth hormone (GH), thyrotropin (TSH), free thyroxine (fT(4)), free triiodothyronine (fT(3)), prolactin (PRL), insulin-like growth factor (IGF-I), and sex hormone-binding globulin (SHBG) were determined by RIA procedures in blood samples obtained before and immediately after a 60-s period of consecutive vertical jumps (Bosco test). The study subjects were 16 Italian professional soccer players. Immediately after exercise, significant increases (p<0.05) were found in the concentrations of ACTH (by 39%), C (by 14%), TSH (by 20%), fT(3) (by 28%), fT(4) (by 30%), tT (by 12%), fT (by 13%), and SHBG (by 21%). Significant changes were not detected in the blood levels of GH, IGF-I and PRL. Most pronounced testosterone responses were typical for persons of high jumping performance (the increase of serum tT correlated with average power output, r=0.61 and jumping height, r=0.66). The larger the drop in power output during 60-s jumping, the higher was the thyroid response: the difference in jumping height between the first and last 15-s period correlated with increases in TSH (r=0.52) and in fT(4), (r=0.55). In conclusion, the obtained results indicate that in intense exercise, causing the rapid development of fatigue, rapid increases in serum levels of hormones of the pituitary-adrenocortical, pituitary-gonadal and pituitary-thyroid systems occur.
Bosco, C., Tihanyi, J., Rivalta, L., Parlato, G., Tranquilli, C., Foti, C., et al. (1996). Hormonal responses in strenuous jumping effort. JAPANESE JOURNAL OF PHYSIOLOGY, 46(1), 93-98.
|Tipologia:||Articolo su rivista|
|Citazione:||Bosco, C., Tihanyi, J., Rivalta, L., Parlato, G., Tranquilli, C., Foti, C., et al. (1996). Hormonal responses in strenuous jumping effort. JAPANESE JOURNAL OF PHYSIOLOGY, 46(1), 93-98.|
|Settore Scientifico Disciplinare:||Settore MED/34 - Medicina Fisica e Riabilitativa|
|Revisione (peer review):||Sì, ma tipo non specificato|
|Stato di pubblicazione:||Pubblicato|
|Data di pubblicazione:||1996|
|Titolo:||Hormonal responses in strenuous jumping effort|
|Autori:||Bosco, C; Tihanyi, J; Rivalta, L; Parlato, G; Tranquilli, C, Pulvirenti, G; Foti, C; Viru,M; Viru, A|
|Appare nelle tipologie:||01 - Articolo su rivista|