Abstract
The aim of the study was to investigate the level of essential polyunsaturated fatty acids (PUFAs) in athletes into the training period and after endurance race (n=15 high-trained male cross-country skiers, real members of national skiing team). The PUFAs in plasma was determined by the gas-liquid chromatography method. Results demonstrate a deficiency of plasma level of the n-3 PUFA of the almost all skiers during the training period. Competition activity modified the essential PUFA profile in blood across more twice increase of the n-3 docosahexaenoic acids (DHA) (p=0.112) and n-3 alpha-linolenic (ALA) (p=0.048) levels and decrease n-6 PUFA relative to baselines, which expressed in a decrease in n6/n3 ratio (p=0.017). Relationships between n3/n-6 ratio and base heart rate, diastolic pressure and Maximal oxygen uptake, show on the significant role essential PUFAs in regulation of the cardiovascular system in cross-country skiers.
Keywords
Essential fatty acids, Heart rate, Blood pressure, Cross-country skiers, Competition,References
- A.P. Simopoulos, The omega-6/omega-3 fatty acid ratio, genetic variation, and cardiovascular disease, Asia Pacific Journal of Clinical Nutrition, 17 (2008) 131-134.
- M.P. Schwellnus, (2011), Olympic textbook of medicine in sport. Publisher: Blackwell Publishing Limited, 672 p.
- G.C. Burdge, & P.C. Calder, Dietary a-linolenic acid and health-related outcomes: a metabolic perspective, Nutrition Research Reviews, 19 (2006) 26–52.
- E.J. Lewis, P.W. Radonic, T.M. Wolever, G.D. Wells, 21 days of mammalian omega-3 fatty acid supplementation improves aspects of neuromuscular function and performance in male athletes compared to olive oil placebo, Journal of the International Society of Sports Nutrition, 12 (2015) 28-39.
- A. Zebrowska, K. Mizia-Stec, M. Mizia, Z. Gasior, S. Poprzecki, Omega-3 fatty acids supplementation improves endothelial function and maximal oxygen uptake in endurancetrained athletes, European Journal of Sport Science, 15 (2015) 305-314.
- H. Tapiero, G. Nguyen, P. Couvreur, K.D. Tew, Polyunsaturated fatty acids (PUFA) and eicosanoids in human health and pathologies, Biomedicine & Pharmacotherapy, 56 (2002) 215–222.
- V. Mougios, S. Ring, A. Petridou, M.G. Nikolaidis, Duration of coffee- and exercise-induced changes in the fatty acid profile of human serum, Journal of Applied Physiology, 94 (2003) 476- 484.
- A.Y. Lyudinina, G.E. Ivankova, E.R. Bojko, Priority use of medium-chain fatty acids during high-intensity exercise in cross-country skiers, Journal of the International Society of Sports Nutrition, 15 (2018) 1-8.
- L. Hodson, C.M. Skeaff, B.A. Fielding, Fatty acid composition of adipose tissue and blood in humans and its use as a biomarker of dietary intake, Progress in Lipid Research, 47 (2008) 348–380.
- F. Marangonia, C. Colomboa, A. Martielloa, E. Negrib, C. Gallia, The fatty acid profiles in a drop of blood from a fingertip correlate with physiological, dietary and lifestyle parameters in volunteers, Prostaglandins, Leukotrienes and Essential Fatty Acids, 76 (2007) 87–92.
- D.C. Nieman, N.D. Gillitt, M.P. Meaney, and D.A. Dew, No Positive Influence of Ingesting Chia Seed Oil on Human Running Performance, Nutrients, 7 (2015) 3666-3676.
- D. Richard, K. Kefi, U. Barbe, P. Bausero, F. Visioli, Polyunsaturated fatty acids as antioxidants, Pharmacological Research, 57 (2008) 451–455.