Uma abordagem psicofisiológica ao estudo dos mecanismos estratégicos de diálogo interno através da variabilidade da frequência cardíaca durante uma tarefa de ciclismo

Autores

  • Evangelos Galanis University of Thessaly (Greece) https://orcid.org/0000-0001-6525-2012
  • Zoran Stojković University of Thessaly (Greece); Canadian Forces Morale and Welfare Services (Canada)
  • Theodoros Proskinitopoulos University of Thessaly (Greece) https://orcid.org/0009-0001-2804-9784
  • Emmanouil Tzormpatzakis University of Thessaly (Greece)
  • Nikos Comoutos University of Thessaly (Greece)
  • Yannis Theodorakis University of Thessaly (Greece)
  • Antonis Hatzigeorgiadis University of Thessaly (Greece)

DOI:

https://doi.org/10.47197/retos.v70.117042

Palavras-chave:

Psicologia do desporto aplicada, sistema nervoso autónomo, RMSSD, modulação vagal

Resumo

Introdução: A literatura sobre o diálogo interno realça a importância do emprego de abordagens multidisciplinares para melhor compreender o funcionamento do diálogo interno estratégico.

Objectivo: O objectivo do presente estudo foi examinar o efeito de uma intervenção de diálogo interno estratégico na modulação vagal durante o exercício aeróbico de intensidade moderada.

Metodologia: Foi utilizado um ensaio clínico randomizado. Oitenta e três estudantes de ciências do desporto (36 mulheres), com uma média de idades de 21,02 (±2,31) anos, preencheram os requisitos do estudo. Os participantes foram aleatoriamente designados para os grupos experimental e de controlo. A variabilidade da frequência cardíaca (VFC) foi monitorizada durante o exercício para avaliar as alterações na modulação vagal. Os participantes pedalaram a 50% da sua reserva de frequência cardíaca durante 20 minutos, com o grupo experimental a utilizar o diálogo interno estratégico instrucional. As medidas da VFC foram calculadas em intervalos de 4 minutos e analisadas através da análise de variância de medidas repetidas.

Resultados: As comparações pareadas mostraram diferenças significativas entre os dois grupos na medida da variabilidade da frequência cardíaca (RMSSD) durante os últimos 8 minutos da tarefa (p < 0,05).

Discussão: Estas diferenças refletiram uma menor supressão vagal no grupo de diálogo interno em comparação com o grupo de controlo. As diferenças observadas na modulação vagal podem ser explicadas pelos efeitos auto-reguladores do diálogo interno estratégico durante a tarefa, especialmente nas fases finais, sugerindo um esforço reduzido no desempenho.

Conclusões: Os presentes achados fornecem evidências encorajadoras para uma investigação mais aprofundada dos mecanismos do diálogo interno estratégico utilizando abordagens psicofisiológicas.

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Publicado

2025-08-12

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Artigos de caráter científico: trabalhos de pesquisas básicas e/ou aplicadas.

Como Citar

Galanis, E., Stojković, Z., Proskinitopoulos, T., Tzormpatzakis, E., Comoutos, N., Theodorakis, Y., & Hatzigeorgiadis, A. (2025). Uma abordagem psicofisiológica ao estudo dos mecanismos estratégicos de diálogo interno através da variabilidade da frequência cardíaca durante uma tarefa de ciclismo. Retos, 70, 1334-1342. https://doi.org/10.47197/retos.v70.117042