Metabolic alterations caused by caffeineingest inman between 20 and 35 years
Abstract
The consumption of caffeine expected improving physical performance is growing significantly in recent decades, aroused the interest of scholars of the matter, generating considerable scientific literature for the purpose of attest the effectiveness of the effects of their use. Objective: To evaluate the impact on human metabolism by ingestion of the substance. Materials and methods: were evaluated 08 men between20 and 35 years, with about 70 Kg, practicing physical activities, which they have done racing in ergo metric bicycle, constant and intermittently, during 30 minutes twice, one time consuming dietary supplement the caffeine, and other, consuming placebo, with measurement of PA, FC, and temperature. The rate of glycerin decreased less pronounced in the supplementation group with caffeine, while the other variables showed no significant differences between groups. The amendment on the rate of blood glucose, it seems, comes from the largest mobilization of fats and consequent muscle glycogen economy caused by the substance examined. Despite the attention that has been dedicated to the subject, this also requires deeper as to its appropriate consumption, which makes testing more accurate that could improve, the applicability of knowledge already achieved in the area.
References
-Altermann, A.M.; Dias, C.S.; Luiz, M.V.; Navarro, F. A Influência da Cafeína Como Recurso Ergogênico no Exercício Físico: Sua Ação e Efeitos Colaterais. Revista Brasileira de Nutrição Esportiva, São Paulo. Vol. 2. Num. 10, Julho/Agosto, 2008. p. 225-239.
-Altimari, L.R.; Cyrino, E.S.; Zucas, S.M.; Okano, A.H.; Burini, R.C. Cafeína: Ergogênico Nutricional no Esporte. Rev. Bras. Ciên. e Mov. Brasília. Vol.9. Num. 3.julho 2001. p.57-64.
-Altimari, L.R.; Moraes, A.C.; Tirapegui, J.; Moreau, R.L. Cafeína e Performance em Exercícios Anaeróbios. Revista Brasileira de Ciências Farmacêuticas Brazilian Journal of Pharmaceutical Sciences. Vol. 42. Num. 1.jan./mar., 2006.
-Altimari, L.R.; Zucas, E.S.C.S.M.; Burini, R.C. Efeitos Ergogênicos da Cafeína sobre o Desempenho Físico. Rev. paul. Educ. Fís., São Paulo. Vol. 14. Num. 2. jul./dez. 2000.p. 141-158.
-Altimari, L.R.; Melo, J.; Trindade, M.; Tirapegui, J.; Cyrino, E. Efeito ergogênico da cafeína na performance em exercícios de média e longa duração. Revista Portuguesa de Ciências do Desporto. Vol. 5. Num.1.2005. p. 87–101.
-Barbosa, D.J.N.; Pereira, L.N.; Cardoso, M.I.; Pereira, R.; Machado, M. Efeitos da Cafeína na Performance e Variáveis Hemodinâmicas do RAST: Estudo Placebo Controlado. Movimento &Percepção, Espírito Santo do Pinhal, SP, Vol. 9. Num. 13.Julh/Dez 2008.
-Braga, L.C.; Alves, M.P. A Cafeína como Recurso Ergogênico nosExercícios deEndurance. Rev. Bras. Ciên. e Mov. Brasília. Vol.8. Num. 3. junho 2000. p.33-37.
-Burke, L.M.Caffeine and sports performance. Appl.Physiot Nutr. Metab. Num. 33.2008. p. 1319-1334.
-Cavalcante, J.W.S.; Junior, P.R.M.S.; Menezes, M.G.F.; Marques, H.O.; Cavalcante, L.P.; Pacheco, W.S. Influência da Cafeína no Comportamento da Pressão Arterial e da Agregação Plaquetária. Arq Bras Cardiol. Vol.75. Num. 2. 2000. p. 97-101.
-Ferreira, G.M.H.; Guerra, G.C.B.; Guerra, R.O. Efeitos da Cafeína na Percepção do Esforço, Temperatura, Peso Corporal e Freqüência Cardíaca de ciclistas sob Condições de Stress Térmico. Rev. Bras. Ci. e Mov. Vol. 14. Num. 2. 2006. p.33-40.
-Goldstein, E.R.; Ziegenfuss, T.; Kalman, D.; Kreider, R.; Campbell,B.; Wilborn, C.; Taylor,L.; Willoughby, D.; Stout, J.; Graves, B.S.; Wildman, R.; Ivy,J.L.; Spano, M.; Smith,A.E.; Antonio,J. International society of sports nutrition positionstand: caffeine and performance. Journal of the International Society of Sports Nutrition 2010, 7:5.
-Greer, F.; Mclean, C.; Graham, T.E. Caffeine, Performance, and Metabolismduring Repeated Wingate Exercise Tests. J Appl Physiol. Num. 85. 1998. p. 1502-1508.
-Guttierres, A.P.M.; Natali, A.J.; Alfenas, R.C.G.; Marins,J.C.B. Efeito Ergogênico de uma Bebida Esportiva Cafeinada sobre a Performance em Testes de Habilidades Específicas do Futebol. Rev Bras Med Esporte. Vol.15. Num.6.Niterói Nov./Dec. 2009.
-Jacobson, B.H.;Weber, M.D.; Claypool, L.; Hunt, L.E. Effect of Caffeine on Maximal Strength and Power in Elite Male Athletes. Br J Sp Med. Vol. 26. Num. 4. 1992.
-Keisler, B.D.;Armsey II.T.D. Caffeine As an Ergogenic Aid. Current Sports Medicine Reports. Num. 5. 2006. p. 215–219.
-Mcnaughton, L.R. The Influence of Caffeine Ingeston on Incremental Treadmill Running. Brit.J.Sports Med. Vol. 20. Num. 3.September 1986.p. 109-112.
-Mello, D.; Kunzler, D.K.; Farah, M. A Cafeína e seu Efeito Ergogênico. Revista Brasileira de Nutrição Esportiva, São Paulo. Vol. 1.Num.2.Mar/Abril, 2007.p. 30-37.
-Paton, C.D.; Hopkins, W.G.; Vollebregt, L. Little Effect of Caffeine Ingestion on Repeated Sprints in Team-sport Athletes. Medicine and Science in Sports and Exercise. Vol. 33. Num. 5. 2001.
-Schneiker, K.T.; Bisshop, D.; Dawson, B.; Hackett,L.P. Effects of Caffeine on Prolonged Intermittent-Sprint Ability in Team-Sport Athletes. Medicine & Science in Sports & Exercises. Vol. 38. 2006. p. 578-585.
-Stuart, G.R.; Hopkins, W.G.; Cook, C.;Cairns, S.P. Multiple Effects of Caffeine on Simulated High-Intensity Team-Sport Performance. Med. Sci. Sports Exerc. Vol. 37. Num. 11. 2005. p. 1998-2005.
-Vitorino, D.C.; Buzzachera, C.F.; Elsangedy, H.M.; Cunha, R.C.; Osieck, R.; Siva, S.G. Efeitos da Ingestão Aguda de Cafeína sobre o Desempenho Anaeróbico Intermitente. Revista Treinamento Desportivo. Vol. 8. Núm.1. 2007. p. 01-05.
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