caa a22 4500 465803660 CHVBK 20180323112058.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF03348571 doi (NATIONALLICENCE)springer-10.1007/BF03348571 Plasma beta-endorphin and beta-lipotropin levels increase in well trained athletes after competition and non competitive exercise [Elektronische Daten] [Felice Petraglia, A. Modena, G. Comitini, D. Scazzina, F. Facchinetti, D. Fiaschetti, A. Genazzani, C. Barletta, D. Scavo, A. Genazzani] Plasma ß-endorphin (ß-EP) and ß-lipotropin (ß-LPH) levels were measured in 15 healthy trained marathon runners. These hormones were evaluated in two different conditions: 1 — before (1 h) and after a marathon race (n = 10); 2 — before, during and after a prolonged (90 min) submaximal exercise (bicycle ergometer at 50% VO2 max) (n = 5). In these latter group plasma ß-EP and ß-LPH levels were measured every 15 min for 165 min. In all the athletes, both plasma ß-EP and ß-LPH levels were significantly higher after the end of the marathon race than in basal conditions (p < 0.01). The prolonged exercise with bicycle ergometer significantly stimulated plasma ß-EP and ß-LPH levels. Starting 60 min after the beginning of the exercise, plasma ß-EP and ß-LPH levels resulted significantly higher than basal values until the end of the exercise (p < 0.01 at 60, 75 and 90 min). These data confirming that marathon running is a potent stress stimulus, showed that the duration and related factors but not the work load may be considered critical in stimulating ß-EP and ß-LPH release during physical exercise. Italian Society of Endocrinology (SIE), 1990 ß-endorphin nationallicence ß-lipotropin nationallicence physical exercise nationallicence stress nationallicence competition nationallicence opioids nationallicence POMC nationallicence Petraglia Felice Dept. Obstet. Gynecol., University of Modena, School of Medicine, Via del Pozzo 71, 41100, Modena, Italy aut Modena A. Univesità di Parma, 44100, Parma, Italy aut Comitini G. Dept. Obstet. Gynecol., University of Modena, School of Medicine, Via del Pozzo 71, 41100, Modena, Italy aut Scazzina D. Univesità di Parma, 44100, Parma, Italy aut Facchinetti F. Dept. Obstet. Gynecol., University of Modena, School of Medicine, Via del Pozzo 71, 41100, Modena, Italy aut Fiaschetti D. Univesità di Parma, 44100, Parma, Italy aut Genazzani A. Dept. Obstet. Gynecol., University of Modena, School of Medicine, Via del Pozzo 71, 41100, Modena, Italy aut Barletta C. Patologia Medica, Università di Roma, "La Sapienza”, 00100, Roma, Italy aut Scavo D. Patologia Medica, Università di Roma, "La Sapienza”, 00100, Roma, Italy aut Journal of Endocrinological Investigation Springer International Publishing 13/1(1990-01-01), 19-23 0391-4097 13:1<19 1990 13 40618 https://doi.org/10.1007/BF03348571 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF03348571 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Petraglia Felice Dept. Obstet. Gynecol., University of Modena, School of Medicine, Via del Pozzo 71, 41100, Modena, Italy aut NATIONALLICENCE 700 1- Modena A. Univesità di Parma, 44100, Parma, Italy aut NATIONALLICENCE 700 1- Comitini G. Dept. Obstet. Gynecol., University of Modena, School of Medicine, Via del Pozzo 71, 41100, Modena, Italy aut NATIONALLICENCE 700 1- Scazzina D. Univesità di Parma, 44100, Parma, Italy aut NATIONALLICENCE 700 1- Facchinetti F. Dept. Obstet. Gynecol., University of Modena, School of Medicine, Via del Pozzo 71, 41100, Modena, Italy aut NATIONALLICENCE 700 1- Fiaschetti D. Univesità di Parma, 44100, Parma, Italy aut NATIONALLICENCE 700 1- Genazzani A. Dept. Obstet. Gynecol., University of Modena, School of Medicine, Via del Pozzo 71, 41100, Modena, Italy aut NATIONALLICENCE 700 1- Barletta C. Patologia Medica, Università di Roma, "La Sapienza”, 00100, Roma, Italy aut NATIONALLICENCE 700 1- Scavo D. Patologia Medica, Università di Roma, "La Sapienza”, 00100, Roma, Italy aut NATIONALLICENCE 773 0- Journal of Endocrinological Investigation Springer International Publishing 13/1(1990-01-01), 19-23 0391-4097 13:1<19 1990 13 40618 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer