Assessment of plasma opioid peptides, beta-endorphin and met-enkephalin, at the end of an international nordic ski race.
Eur J Appl Physiol Occup Physiol
; 56(3): 281-6, 1987.
Article
em En
| MEDLINE
| ID: mdl-2952498
ABSTRACT
Plasma met-enkephalin, beta-endorphin, cortisol and lactic acid concentrations were measured in seventeen volunteer male subjects at rest and after a long-distance nordic ski race. Immediately after the race, mean plasma met-enkephalin did not show any significant change, but significant rises in beta-endorphin, cortisol and lactic acid were noted in all skiers. The change in beta-endorphin with exercise was significantly related to the change in cortisol (r = 0.68; p less than 0.001) and to the change in plasma lactic acid (r = 0.60; p less than 0.001). Furthermore, the experienced skiers training over 150 km X week-1 of nordic ski had significantly faster skiing times in this event and showed greater beta-endorphin, cortisol and lactic acid levels than the recreational skiers who trained for 20 km X week-1. Our results imply that the changes in plasma beta-endorphin depend on the intensity of exercise. However the significance of higher levels of skiing training or previous nordic ski experience in the release of beta-endorphin is expected and cannot be excluded.
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Temas:
ECOS
/
Aspectos_gerais
Bases de dados:
MEDLINE
Assunto principal:
Esqui
/
Encefalina Metionina
/
Endorfinas
Aspecto:
Determinantes_sociais_saude
Limite:
Adult
/
Humans
/
Male
Idioma:
En
Revista:
Eur J Appl Physiol Occup Physiol
Ano de publicação:
1987
Tipo de documento:
Article