Plasma activity of muscle enzymes: quantification of skeletal muscle damage and relationship with metabolic variables
Deutscher übersetzter Titel: | Plasmaaktivitaet der Muskelenzyme: Quantifizierung des Skelettmuskelfaserzerfalls und Beziehung zu Stoffwechselvariablen |
---|---|
Autor: | Janssen, G.M.E.; Kuipers, H.; Willems, G.M.; Does, R.J.M.M.; Janssen, M.P.E.; Geurten, P. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 10 (1989), Suppl. 3, S. 160-168, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU198910040993 |
Quelle: | BISp |
Abstract
One hundred fourteen sedentary volunteers (34 +/- 8 years) took part in an endurance training study to be completed after 18-20 months with a marathon. Ultimately, 60 males and 18 females achieved that goal. The training program, carefully supervised, was divided into three periods with a maximum of 45-, 70-, and 110-km week training volume and concluded with a performance race of 15, 25 and 42.2 km, respectively. Three days before and 3 and 5 days after each race, 35 subjects were selected to perform a progressive treadmill test and the remaining subjects participated in field tests of 400 and 1000 m. a significant decrease in half-life time of CK enzyme plasma activity after running long distances in the course of the study from 20 h to 13 h was observed. Based on plasma enzyme activity and supposing that the total enzyme content left the muscle fiber, the estimated amount of muscle demage was found to be small. A gender difference in plasma enzyme activity increase (females demonstrated a lower increase) occurred only after the marathon. Verf.-Referat