Streshormone en fisieke aktiwiteit
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie/South African Journal of Science and Technology
| Field | Value | |
| Title | Streshormone en fisieke aktiwiteit Stress hormones and physical activity | |
| Creator | Office, Editorial | |
| Description | Hormoonsekresie is die sine qua non van die stresrespons en onderlê die vele fisiologiese reaksies wat voorkom. ß-endorfien is ’n 31-aminosuurpolipeptiedhormoon van die adenohipofise en hipotalamus. Dit is die endogene opioïed wat in farmakologiese werkwyses en fisiologiese effekte die grootste ooreenkoms toon met morfien, die prototipe van die opioïedanalgetika. Hormone secretion during physical activity of specific duration and intensity is part of the stress response. In a study to investigate the secretion of ß-endorphin, leucine enkephalin and other recognised stress hormones during physical exercise, blood samples were taken from fourteen (14) healthy, male athletes who competed in a 21 km roadrace. Blood samples were collected before and after completion of the race. This study shows that ß-endorphin/ß-lipotropin, leucine enkephalin, prolactin, and melatonin may be classified as stress hormones in physical activity of duration 80 to 120 minutes and intensity exceeding 75%-V0₂max. Widespread intra-individual variation in serum cortisol concentrations prevent definite conclusion. The unexpected increase in serum testosterone levels warrants further research. | |
| Publisher | AOSIS | |
| Date | 1991-07-08 | |
| Identifier | 10.4102/satnt.v10i2.495 | |
| Source | Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 10, No 2 (1991); 93-95 Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 10, No 2 (1991); 93-95 2222-4173 0254-3486 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://journals.satnt.aosis.co.za/index.php/satnt/article/view/495/885
|
|
ADVERTISEMENT
