[Tradução para o espanhol] Efeitos da suplementação de cafeína no desempenho de atletas treinados no crossfit
DOI:
https://doi.org/10.15517/rben2c80Resumo
OBJETIVO: O estudo teve como objetivo comparar os efeitos da suplementação de cafeína (CAFF) no desempenho específico do CrossFit, na percepção subjetiva de esforço (PSE), na dor muscular tardia (DOMS) e na perda da capacidade de salto em atletas treinados. MÉTODOS: Dezoito participantes (12 homens e 6 mulheres), todos atletas treinados em CrossFit®, realizaram um protocolo específico de desempenho do CrossFit® (“Diane”) após o consumo aleatório e às cegas de cafeína. A percepção subjetiva de esforço (PSE) após o exercício, o salto com contramovimento, a dor muscular tardia e a espessura muscular foram avaliados antes e depois do exercício. RESULTADOS: Observou-se uma melhora no desempenho do CrossFit® após a suplementação com CAFF em comparação com o controle (CON) (p = 0,001), com uma tendência de diminuição na PSE (p = 0,056). Além disso, houve maior dor muscular tardia no grupo CON em comparação com o grupo CAFF (p = 0,010) e o grupo PLA (p = 0,011). Em relação à capacidade de salto, observou-se um aumento no desempenho no grupo placebo após o exercício (p < 0,001). CONCLUSÃO: A suplementação com CAFF não melhorou o desempenho no CrossFit, a PSE, a dor muscular tardia ou a capacidade de salto em comparação com o placebo. Embora tanto o grupo CAFF quanto o grupo PLA tenham melhorado o desempenho em comparação com o grupo CON, esse padrão provavelmente se deve a efeitos de aprendizagem ou expectativas, e não a um verdadeiro efeito ergogênico da cafeína.
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