Efeito da forma física de suplementos energéticos no desempenho e na hidratação no futebol

• Ano de defesa: 2009
• Autor(a) principal: Gatti, Karolina
• Orientador(a): Marins, João Carlos Bouzas
• Banca de defesa: Lima, Jorge Roberto Perrout , Juvêncio, José de Fátima
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Ciência da Nutrição
• Departamento: Valor nutricional de alimentos e de dietas; Nutrição nas enfermidades agudas e crônicas não transmis
• País: BR
• Palavras-chave em Português: Carboidrato; Suplementos; Formas físicas; Bebida; Gel; Futebol
• Palavras-chave em Inglês: Carbohydrate; Supplements; Physical form; Drink; Gel; Soccer
• Área do conhecimento CNPq: CNPQ::CIENCIAS DA SAUDE::NUTRICAO
• Link de acesso: http://locus.ufv.br/handle/123456789/2724

In soccer, as in other sports, the combination of water and energy replacement prevents dehydration and provides energy for improvement and maintenance of physical performance. The improvement in physical performance by consumption of drinks containing carbohydrates has beenreported by several authors. However, the effects of carbohydrate consumption in a gel form are still poorly explored. The aim of this study was to compare the effect of supplementation with carbohydrates in the liquid and gel forms in metabolism, physical performance and mineral-water balance during a soccer game. Seventeen soccer players of the Under-17 category (age: 16.17 ± 0.73 years, body mass: 60.26 ± 8.29 kg, height: 174.5 ± 6.45 cm, BMI: 19.7 ± 1.8 kg/ m2;% F:14.16 ± 2.71% body fat, VO2max: 49.3 ± 2.86 ml. kg-1.min-1) played two soccer gameswith three weeks of range, two hours after eating a standardized breakfast. Before the start of the games and during half times the participants consumed 0.8 g carbohydrate / kg body weight in the liquid and gel forms, with the same content of fluid (20 ml / kg body weight for the ninety minutes of game). Heart rate, perceived exertion, glycaemia, blood lactate concentration, proteinuria, explosive strength, agility and gastric discomfort, parameters for assessment of hydration status (percentage of weight loss, degree of dehydration, sweat rate, urine total volume, urine density and percentage of water replacement) and the plasma sodium and potassium concentration were similar between treatments p> 0.05). In both treatments, glycaemia was higher (p <0.05) at halftime and after the game when compared to the pre-game. The performance in jumping test (gel: 36.43 ± 3.59, 37.47 ± 5.24 cm, p = 0.327 and drink: 36.11 ± 4.03, 37.74 ± 3.53 cm, p = 0.066) and agility test (gel: 15.6 ± 0.46 sec; 15.66 ± 0.52 sec; p = 0.524 and drink: 15.62 ± 0.4 sec, 15.66 ± 0.44 sec; p = 0.571) were similar in the post and pre-game. In the treatment with the gel there was a significant increase (p <0.05) in scores for the symptom of "abdominal pain on the right side", "feeling of abdominal bloating" and "burning sensation in stomach" in the second half of the game. There was a statistically significant loss (p <0.05) in body weight after the game in both treatments. The plasma potassium concentration decreased significantly after the game in both treatments (p <0.05). Heart rate and perceived exertion were similar between treatments at all moments (p> 0.05). Based on the conditions of this study, we conclude that the energy replacement with sources of carbohydrate supplements in the liquid and gel forms during a soccer game does not interfere with the behavior of glucose, lactate, gastric discomfort, physical performance, the state of dehydration and plasma sodium and potassium concentration.