11
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Análise da suplementação de carboidratos e solução isotônica sobre parâmetros hematológicos e bioquímicos de jogadores profissionais de futebol em condições reais de treinamento Translated title: El análisis de los suplementos de hidratos de carbono en solución isotónica y parámetros hematológicos y bioquímicos de jugadores profesionales de fútbol en entrenamiento real Translated title: Analysis of carbohydrate supplementation and isotonic solution hematological and biochemical parameters on professional soccer players in real training

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Avaliou-se o efeito de uma suplementação com carboidratos e bebidas esportivas sobre parâmetros laboratoriais em atletas de futebol de campo, em uma situação real de treinamento. Foram coletados 10 ml de sangue venoso e 50 ml de urina em repouso e 15 minutos após treinamento. Os resultados mostram que o exercício intenso causou um variável grau de estase urinária, bem como provocou alterações hidroeletrolíticas caracterizadas por uma diminuição na concentração sérica de sódio, potássio, magnésio, fósforo e glicose (p<0,05), que não foi modificada por nenhum tipo de protocolo de suplementação nas condições propostas no presente estudo. A suplementação eletrolítica proposta mostrou-se limitada para evitar variações eletrolíticas e que a reposição deve ser avaliada à luz de um contexto ambiental e de treinamento.

          Translated abstract

          Se evaluó el efecto de la suplementación con una bebida deportiva con carbohidratos y los parámetros de laboratorio en los atletas en el campo de fútbol, en un entrenamiento real. Se recogieron 10 ml de sangre venosa y 50 ml de orina en reposo y 15 minutos después del entrenamiento. Los resultados muestran que el ejercicio intenso causado un grado variable de la estasis urinaria y los cambios de electrolitos causados por una marcada disminución de niveles séricos de sodio, potasio, magnesio, fósforo y glucosa (p <0,05), que no fue modificado por cualquier tipo de protocolo de suplementación en las condiciones propuestas en este estudio. La suplementación de electrolitos propuesta demostró ser limitada para evitar las variaciones de los electrolitos y que la recuperación debe ser evaluada a la luz de un entorno ambiental y de entrenamiento.

          Translated abstract

          The aim of this study was evaluate the effect of supplementation with carbohydrate sports drinks and laboratory parameters in athletes on the football field, in a real training. 10 ml of venous blood and 50 ml of urine were collected at rest and 15 minutes after training. The results show that intense exercise caused a variable degree of urinary stasis and electrolyte changes caused by a marked decrease in serum sodium, potassium, magnesium, phosphorus and glucose (p <0.05), which was not modified by any type of supplementation protocol under the conditions proposed in this study. The proposed electrolyte supplementation was shown to be limited to prevent electrolyte variations and that the recovery must be evaluated in light of an environmental and training context.

          Related collections

          Most cited references39

          • Record: found
          • Abstract: found
          • Article: not found

          Skeletal muscle: energy metabolism, fiber types, fatigue and adaptability.

          Skeletal muscles cope with a large range of activities, from being able to support the body weight during long periods of upright standing to perform explosive movements in response to an unexpected threat. This requires systems for energy metabolism that can provide energy during long periods of moderately increased energy consumption as well as being able to rapidly increasing the rate of energy production more than 100-fold in response to explosive contractions. In this short review we discuss how muscles can deal with these divergent demands. We first outline the major energy metabolism pathways in skeletal muscle. Next we describe metabolic differences between different muscle fiber types. Contractile performance declines during intense activation, i.e. fatigue develops, and we discuss likely underlying mechanisms. Finally, we discuss the ability of muscle fibers to adapt to altered demands, and mechanisms behind these adaptations. The accumulated experimental evidence forces us to conclude that most aspects of energy metabolism involve multiple and overlapping signaling pathways, which indicates that the control of energy metabolism is too important to depend on one single molecule or mechanism. Copyright © 2010 Elsevier Inc. All rights reserved.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Structural and catalytic chemistry of magnesium-dependent enzymes.

            J A Cowan (2002)
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Effects of cocoa powder and dark chocolate on LDL oxidative susceptibility and prostaglandin concentrations in humans.

              Flavonoids are polyphenolic compounds of plant origin with antioxidant effects. Flavonoids inhibit LDL oxidation and reduce thrombotic tendency in vitro. Little is known about how cocoa powder and dark chocolate, rich sources of polyphenols, affect these cardiovascular disease risk factors. We evaluated the effects of a diet high in cocoa powder and dark chocolate (CP-DC diet) on LDL oxidative susceptibility, serum total antioxidant capacity, and urinary prostaglandin concentrations. We conducted a randomized, 2-period, crossover study in 23 healthy subjects fed 2 diets: an average American diet (AAD) controlled for fiber, caffeine, and theobromine and an AAD supplemented with 22 g cocoa powder and 16 g dark chocolate (CP-DC diet), providing approximately 466 mg procyanidins/d. LDL oxidation lag time was approximately 8% greater (P = 0.01) after the CP-DC diet than after the AAD. Serum total antioxidant capacity measured by oxygen radical absorbance capacity was approximately 4% greater (P = 0.04) after the CP-DC diet than after the AAD and was positively correlated with LDL oxidation lag time (r = 0.32, P = 0.03). HDL cholesterol was 4% greater after the CP-DC diet (P = 0.02) than after the AAD; however, LDL-HDL ratios were not significantly different. Twenty-four-hour urinary excretion of thromboxane B(2) and 6-keto-prostaglandin F(1)(alpha) and the ratio of the 2 compounds were not significantly different between the 2 diets. Cocoa powder and dark chocolate may favorably affect cardiovascular disease risk status by modestly reducing LDL oxidation susceptibility, increasing serum total antioxidant capacity and HDL-cholesterol concentrations, and not adversely affecting prostaglandins.
                Bookmark

                Author and article information

                Journal
                rbce
                Revista Brasileira de Ciências do Esporte
                Rev. Bras. Ciênc. Esporte
                Colégio Brasileiro de Ciências do Esporte (Brasília, DF, Brazil )
                2179-3255
                December 2012
                : 34
                : 4
                : 999-1016
                Affiliations
                [01] Passo Fundo Rio Grande do Sul orgnameUniversidade de Passo Fundo Brasil luciano@ 123456upf.br
                [02] Passo Fundo Rio Grande do Sul orgnameUniversidade de Passo Fundo Brasil jaisebor@ 123456yahoo.com.br
                [03] Passo Fundo Rio Grande do Sul orgnameUniversidade de Passo Fundo Brasil fabio.a.zanin@ 123456ibest.com.br
                [05] Porto Alegre Rio Grande do Sul orgnameUniversidade Federal do Rio Grande do Sul Brasil 00006866@ 123456ufrgs.br
                [04] Ribeirão Preto São Paulo orgnameUniversidade de São Paulo Brasil hugotourinho@ 123456hotmail.com
                Article
                S0101-32892012000400014 S0101-3289(12)03400400014
                10.1590/S0101-32892012000400014
                331360e6-a7ff-430f-a8c4-304a9b1ec72c

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 21 January 2012
                : 04 June 2011
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 39, Pages: 18
                Product

                SciELO Brazil

                Categories
                Artigos Originais

                Electrolitos,dietary supplements,dehydration,water-electrolyte balance,Electrolytes,suplemento dietético,estresse hídrico,equilíbrio hidroeletrolítico,Eletrólitos,el estrés hídrico,equilibrio electrolítico

                Comments

                Comment on this article