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- Title
Thirteen days of "live high-train low" does not affect prooxidant/antioxidant balance in elite swimmers.
- Authors
Pialoux, Vincent; Mounier, Rémi; Brugniaux, Julien; Rock, Edmond; Mazur, Andrzej; Richalet, Jean-Paul; Robach, Paul; Coudert, Jean; Fellmann, Nicole; Mounier, Rémi; Brugniaux, Julien V
- Abstract
We investigated the impact of 13 days of "living high-training low" (LHTL) on the antioxidant/prooxidant balance in elite endurance swimmers. Eighteen elite swimmers from the French Swimming Federation were submitted to a 13-day endurance training and divided into two groups: one group trained at 1,200 m and lived in hypoxia (2,500-3,000 m simulated altitude) and the second group trained and lived at 1,200 m. The subjects performed an acute hypoxic test (10 min at 4,800 m) before and 1 day after the training period. Plasma levels of advanced oxidation protein products (AOPP), malondialdehydes (MDA), ferric reducing antioxidant power (FRAP), and lipid-soluble antioxidants were measured before and after the 4,800 m tests. After the training, MDA and AOPP responses to the 4,800 m test were lower than before training for both groups (+10 vs. +2%; P = 0.01 for MDA and +80 vs. +14%; P = 0.01 for AOPP). Thirteen days of LHTL did not modify antioxidant status (FRAP and lipid-soluble antioxidants) despite intakes in vitamins A and E below the recommended daily allowances. The LHTL did not affect the antioxidant status in elite swimmers; however, the normoxic endurance training induced preconditioning mechanisms in response to the 4,800 m test.
- Subjects
FRANCE; ANTIOXIDANTS; ENDURANCE athletes; SWIMMING associations; LIPIDS; PHYSIOLOGICAL adaptation; ALTITUDES; BIOCHEMISTRY; COMPARATIVE studies; EXERCISE; PHENOMENOLOGY; RESEARCH methodology; MEDICAL cooperation; PHYSICAL fitness; RESEARCH; SWIMMING; EVALUATION research; OXYGEN consumption; PHYSIOLOGY
- Publication
European Journal of Applied Physiology, 2009, Vol 106, Issue 4, p517
- ISSN
1439-6319
- Publication type
journal article
- DOI
10.1007/s00421-009-1046-1