ResumoO objetivo do estudo foi analisar as adaptações morfofuncionais decorrentes de 12 semanas de treinamento concorrente (TC). Quinze homens saudáveis, sedentários, de meia-idade (48,8 ± 5,0 anos) participaram deste estudo. Foram separados em: grupo treinamento concorrente (TC, n=8), que realizaram exercícios com pesos seguidos de exercícios de caminhada e corrida; e grupo controle (GC, n=7), o qual não realizou exercícios físicos durante o período experimental. Foram realizadas avaliações antropométricas, hemodinâmicas, composição corporal, e força máxima estática e dinâmica. Para a análise dos dados, utilizou-se ANOVA para medidas repetidas (grupo x tempo). Quando verificada diferença no momento inicial entre os grupos, a análise de covariância (ANCOVA) foi aplicada, utilizando como co-variável a linha de base. O post hoc de Scheffé foi aplicado para localizar as diferenças significantes. Os resultados mostraram que houve redução significante na somatória das nove dobras (-14,80%), massa gorda (-15,33%), no percentual de gordura (-13,58%), aumento significante na força muscular (supino reto +14,48%; leg press +13,21%) e pico de velocidade no teste de esteira (+14,17%) após o treinamento. Tais resultados sugerem que o TC é eficaz para a melhora da composição corporal, força muscular, e aptidão aeróbia de homens de meia-idade saudáveis e sedentários.
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