Resumo
O treino intervalado de sprint (SIT) melhora o desempenho aeróbico, bem como marcadores de saúde e aptidão física na população não atlética. No entanto, não há informações suficientes sobre o desempenho quando o SIT é interrompido. O objetivo deste estudo foi pesquisar as alterações no processo de destreinamento da evolução da aptidão física adaptativa causadas pelo treinamento intervalado de sprint de curta duração. O desenho geral do estudo foi classificado em pré-SIT, período de treino, pós-SIT, e medidas de período de destreinamento. Os sujeitos (n = 26) completaram as medidas de base do teste de corrida de 20m e foram distribuídos aleatoriamente em grupos de treinamento e controle. O grupo de controle manteve sua rotina diária e o grupo de treinamento realizou o SIT por quatro semanas. O teste de corrida de 20 m foi aplicado antes e após o treinamento e na quarta e oitava semana de destreinamento. Após o período de treinamento, o desempenho aeróbio aumentou no grupo de treinamento (p < 0,05). Além disso, os aumentos no desempenho aeróbico foram mantidos durante as quatro semanas de destreinamento (p < 0,05), porém, os aumentos no desempenho desapareceram na oitava semana do destreinamento (p > 0,05). Pausar o programa de exercícios por mais de quatro semanas em indivíduos jovens saudáveis pode fazer com que os efeitos positivos do SIT no consumo máximo de oxigênio (VO2máx.) desapareçam. Os participantes do SIT não devem pausar o exercício por mais de quatro semanas para manter o ganho aeróbico.
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