Changes of ROS during a two-day ultra-marathon race
Deutscher übersetzter Titel: | Veränderungen von ROS während eines zweitägigen Ultramarathons |
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Autor: | Hattori, N.; Hayashi, T.; Nakachi, K.; Ichikawa, H.; Goto, C.; Tokudome, Y.; Kuriki, K.; Hoshino, H.; Shibata, K.; Yamada, N.; Tokudome, M.; Suzuki, S.; Nagaya, T.; Kobayashi, M.; Tokudome, S. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 30 (2009), 6, S. 426-430, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/s-0028-1112144 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU200907003392 |
Quelle: | BISp |
Abstract
To assess oxidative stress (OS) induced by endurance exercise, concentrations of serum reactive oxygen species (ROS) were determined in 70 Japanese male amateur runners completing a two-day ultra-marathon race. Serum ROS levels were analyzed at three time points: before the race (baseline), after the 1st day race (mid-race), and after the 2nd day race (goal) (post-race). The means (SE) of ROS were 151.4(3.7) (U. CARR.), 168.7(4.4), and 156.8(4.4), respectively. Significant positive trends were noted between age and serum ROS concentrations at the three race points (p<0.05 for all). After adjusting for age, BMI and average monthly running distance, the baseline serum ROS concentrations were positively associated with completion times of the first-day race, in particular (p<0.05), suggesting that the concentrations may predict physical performance. The ROS production increased at mid-race (p<0.05), but the levels returned to baseline levels at post-race, indicating that an antioxidant defense system may develop post-race to reduce OS. Verf.-Referat