Dissimilar responses of autonomic function and strength to different periodizations in aging adults/ Respostas dissimilares da função autônoma e força para diferentes periodizações em adultos idosos

Ewertton de Souza Bezerra, Cristiano Dall’ Agnol, Lucas Bet da Rosa Orssatto, Thiago Cesar Martins, Roberto Simão, Fábio Yuzo Nakamura, Antônio Renato Pereira Moro

Abstract


Diferentes tipos de programas de treinamento resistido resultam em diferente estresse metabólico e demandas cardiovasculares, o que poderia influenciar adaptações na modulação autonômica cardíaca. O estímulo preciso do treinamento resistido e os mecanismos responsáveis por promover a melhora na variabilidade da frequência cardíaca (VFC) não são claros. Para examinar os efeitos na VFC após dois modelos de periodização de treinamento resistido em adultos idosos. Vinte e dois sujeitos foram divididos em dois grupos: periodização de sessão mista (MSP, n = 11) e periodização tradicional (TP, n = 11). Os sujeitos foram testados antes e após 24 sessões de treinamento resistido para VFC (tempo, frequência e análise não linear), cinco repetições máximas (5-RM) para o leg press e flexora senatada. Apenas o TP melhorou a VFC. O RR médio possivelmente aumentou com prováveis melhorias em RMSSD, SD1 e APEN. Muito provavelmente mudanças positivas foram observadas em HF. As diferenças foram associadas a tamanhos de efeito variando de 0,16 a 0,69. Para todos esses parâmetros autonômicos cardíacos no grupo MSP, a magnitude das mudanças foi classificada como trivial. A abordagem MSP resultou em prováveis ajustes autonômicos inferiores em RR, HF, RMSSD, HF, SD1 e APEN médios. Ambos os grupos provavelmente aumentaram o desempenho de força no leg press e na flexora sentada com possivelmente e provavelmente maiores melhorias observadas no grupo MSP, respectivamente. Aumentos graduais na intensidade prescrita pela abordagem TP podem fornecer melhores ajustes autonômicos do que as intensidades repentinamente mais altas sugeridas pelo MSP. TP parece ser mais eficaz para melhorias da função autonômica, enquanto MSP para força em adultos idosos.


Keywords


regulação cardíaca, função autonômica, modelo de treinamento, treinamento resistido.

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References


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DOI: https://doi.org/10.34117/bjdv7n4-040

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