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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

Rivista di Medicina, Traumatologia e Psicologia dello Sport


Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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The Journal of Sports Medicine and Physical Fitness 2017 Oct 24

DOI: 10.23736/S0022-4707.17.07887-2

Copyright © 2017 EDIZIONI MINERVA MEDICA

lingua: Inglese

Oxidative stress, lipid peroxidation indexes and antioxidant vitamins in long and middle distance athletes during a sport season

Diego MUÑOZ 1 , Gema BARRIENTOS 2, Javier ALVES 2, Francisco J. GRIJOTA 2, Maria C. ROBLES 1, Marcos MAYNAR 1

1 Department of Physiology, Sports Science Faculty, Universidad de Extremadura, Cáceres, Spain; 2 Department of Sport Science, Education Faculty, Universidad Pontificia de Salamanca, Salamanca, Spain


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BACKGROUND: The main objective of this study was to observe any changes and possible adaptations produced in MDA and antioxidants vitamins on plasma and erythrocytes in endurance male athletes among an athletic season (12 months).
METHODS: Twenty three long and middle distance male athletes participated in this study. Basal MDA on plasma and antioxidant vitamins in plasma and erythrocytes were measured at four moments along the season (0, 3, 6 and 9 months). Fatty acid concentrations in erythrocytes were obtained to determine lipid peroxidation indexes.
RESULTS: In plasma, Vitamin C suffered significant decreases at 3 and 6 months compared with the begin (p<0.01), and an increase at 9 months, compared with 3 months. On the other hand, vitamin A level was significantly lower at 9 months compared with the other periods (p<0.01 compared with 0 and 6 months; p<0.05 compared with 3 months). In erythrocytes, significant decreases were observed in vitamin E among the season at 6 months and an increase from 6 to 9 months (p<0.05). Vitamin A suffers a significant decrease in both for competitive periods, at 3 and 9 months, compared with the begin of the season. The most of changes in lipid peroxidation indexes were produced along the firsts 3 months.
CONCLUSIONS: i) physical training improves the antioxidant systems in order to reduce lipid peroxidation in trained athletes along the season; ii) PUFA/SFA ratios seem more reliable than MDA to observe oxidative stress.


KEY WORDS: Malondialdehyde - Vitamin C - Vitamin E - Plasma - Fatty acids

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Publication History

Article first published online: October 24, 2017
Manuscript accepted: October 9, 2017
Manuscript revised: September 27, 2017
Manuscript received: June 20, 2017

Per citare questo articolo

Muñoz D, Barrientos G, Alves J, Grijota FJ, Robles MC, Maynar M. Oxidative stress, lipid peroxidation indexes and antioxidant vitamins in long and middle distance athletes during a sport season. J Sports Med Phys Fitness 2017 Oct 24. DOI: 10.23736/S0022-4707.17.07887-2

Corresponding author e-mail

diegomun@unex.es