Increase in blood bradykinin concentration after eccentric weight-training exercise in men
Deutscher übersetzter Titel: | Erhoehung der Bradykinin-Konzentration im Blut nach exzentrischem Krafttraining bei Maennern |
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Autor: | Blais, C.; Adam, A.; Massicotte, D.; Peronnet, F. |
Erschienen in: | Journal of applied physiology |
Veröffentlicht: | 87 (1999), 3, S. 1197-1201, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 8750-7587, 0021-8987, 0161-7567, 1522-1601 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199910402679 |
Quelle: | BISp |
Abstract des Autors
The purpose of this study was to verify the possible appearance in the blood of bradykinin (BK) and des-Arg9-bradykinin (des-Arg9-BK) after eccentric exercise in 13 male subjects. Eccentric exercise (5 x 10 leg presses at 120% maximal voluntary concentric contraction) resulted in muscle damage and inflammation, as suggested by the significant increase in serum creatine kinase activity (from 204+/-41 to 322+/-63 U/l 12 h postexercise) and by severe lasting pain, which also peaked at 12 h postexercise. Blood BK and des-Arg9-BK concentrations were measured by competitive enzyme immunoassays using highly specific polyclonal rabbit IgG. Des-Arg9-BK concentration was not modified (preexercise: 44+/-14 pmol/l; pooled postexercise: 47+/-4 pmol/l). In contrast, BK concentration significantly increased immediately after the exercise session (68+/-9 vs. 42+/-3 pmol/l preexercise) and returned to basal values at 12, 24, and 48 h (pooled value: 40+/-4 pmol/l). This observation suggests that the inflammatory process due to eccentric exercise-induced muscle damage could be mediated in part by BK. Verf.-Referat