Effects of 6 weeks of n-3 fatty acids and antioxidant mixture on lipid peroxidation at rest and postexercise

Autor: Alain Massart, Fatima Rosado, Edith Filaire, Denys Durand, Hugues Portier, M. Rouveix
Přispěvatelé: UFRSTAPS, Universidade de Coimbra, Unité de Recherches sur les Herbivores (URH), Institut National de la Recherche Agronomique (INRA)
Rok vydání: 2011
Předmět:
Male
Time Factors
FREE-RADICALS
Antioxidant
Supplementation
030309 nutrition & dietetics
Physiology
[SDV]Life Sciences [q-bio]
medicine.medical_treatment
BLOOD OXIDATIVE STRESS
Judo
medicine.disease_cause
Antioxidants
[SHS]Humanities and Social Sciences
Placebos
Lipid peroxidation
chemistry.chemical_compound
0302 clinical medicine
Orthopedics and Sports Medicine
Food science
BIOLOGICAL SAMPLES
Vitamin A
FISH-OIL
Omega-3
0303 health sciences
Physical Education and Training
PLASMA
ALPHA-TOCOPHEROL
Retinol
General Medicine
Malondialdehyde
VITAMIN-E SUPPLEMENTATION
Drug Combinations
Biochemistry
SKELETAL-MUSCLE
Martial Arts
Adult
Vitamin
Rest
Young Adult
03 medical and health sciences
Physiology (medical)
Fatty Acids
Omega-3
medicine
Humans
[INFO]Computer Science [cs]
Exercise
Vitamin C
ECCENTRIC EXERCISE
Vitamin E
Public Health
Environmental and Occupational Health
030229 sport sciences
PERFORMANCE
chemistry
Oxidative stress
Lipid Peroxidation
Zdroj: European Journal of Applied Physiology
European Journal of Applied Physiology, Springer Verlag, 2011, 111 (8), pp.1829-1839. ⟨10.1007/s00421-010-1807-x⟩
ISSN: 1439-6327
1439-6319
Popis: The purpose of this randomized study was to measure the influence of 6 weeks of LCPUFA (600 mg EPA and 400 mg DHA per day) supplementation alone or in association with 30 mg vitamin E, 60 mg vitamin C and 6 mg β-carotene on resting and exercise-induced lipid peroxidation in judoists (n = 36). Blood samples were collected at rest before (T 1) and after the supplementation period, in preexercise (T 2) and postexercise (T 3) conditions, for analysis of α-tocopherol, retinol, lag phase (Lp) before free radical-induced oxidation, maximum rate of oxidation (R max) during the propagating chain reaction, maximum amount of conjugated dienes (CDmax) accumulated after the propagation phase, and nitric oxide, malondialdehyde and lipoperoxide (POOL) concentrations. Dietary data were collected using a 7-day diet record. There were no significant differences among treatment groups with respect to habitual intakes of energy from fat, carbohydrate, or protein. At T 1, there were no significant differences among treatment groups with respect to lipid peroxidation, lag phase, and levels of α-tocopherol or retinol. The consumption of an n-3 LC PUFA supplement increased oxidative stress at rest and did not attenuate the exercise-induced oxidative stress. The addition of antioxidants did not prevent the formation of oxidation products at rest. On the contrary, it seems that the combination of antioxidants added to the n-3 LCPUFA supplement led to a decrease in, CDmax, R max, and POOL and MDA concentrations after a judo training session.
Databáze: OpenAIRE
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