Document Detail

Changes of ROS during a two-day ultra-marathon race.
MedLine Citation:
PMID:  19199215     Owner:  NLM     Status:  MEDLINE    
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.
N Hattori; T Hayashi; K Nakachi; H Ichikawa; C Goto; Y Tokudome; K Kuriki; H Hoshino; K Shibata; N Yamada; M Tokudome; S Suzuki; T Nagaya; M Kobayashi; S Tokudome
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-02-06
Journal Detail:
Title:  International journal of sports medicine     Volume:  30     ISSN:  1439-3964     ISO Abbreviation:  Int J Sports Med     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-05-26     Completed Date:  2009-08-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  426-9     Citation Subset:  IM    
Nagoya City University Graduate School of Medical Sciences, Japan.
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MeSH Terms
Age Factors
Athletic Performance / physiology
Middle Aged
Oxidative Stress / physiology*
Physical Endurance / physiology
Reactive Oxygen Species / blood*
Running / physiology*
Reg. No./Substance:
0/Reactive Oxygen Species

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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