Plasma beta-endorphin immunoreactivity: response to resistance exercise
Deutscher übersetzter Titel: | Immunoreaktivitaet des Plasma-beta-Endorphins: Reaktion auf Krafttraining |
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Autor: | Pierce, Edgar F.; Eastman, Norris W.; Tripathi, Hem T.; Olson, Kirsten G.; Dewey, William L. |
Erschienen in: | Journal of sports sciences |
Veröffentlicht: | 11 (1993), 6, S. 499-502, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0264-0414, 1466-447X |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199408071679 |
Quelle: | BISp |
Abstract des Autors
Previous reserach investigating the response of plasma beta-endorphins (beta-EP) to resistance exercise has resulted in equivocal findings. To further examine the effects of resistance exercise on beta-endorphin immunoreactivity, six resistance-trained athletes participated in a three-set series of eight repetitions of isotonic exercise. All exercises were performed at 80% maximal effort. Blood was sampled from the group by venopuncture, both prior to and following the exercise bout, and beta-endorphin concentration was determined by radioimmunoassay. The results indicated that mean (+/-S.E.) plasma levels of beta-endorphins following exercise (18.04+/-3.4 pg beta-EP/ml) were not significantly changed from pre-exercise (control) levels (19.59+/-2.4 pg beta-EP/ml), although there was considerable inter-individual variability. Our results support previous research which has reported no significant changes in beta-endorphin immunoreactivity following resistance exercise, as well as reported findings of considerable variability in the beta-endorphin response to exercise. Verf.-Referat