Análise biomecânica do exercício de flexão de braços em estudantes-atletas universitários do sexo masculino de diferentes cursos: um estudo comparativo baseado no desporto

Autores

DOI:

https://doi.org/10.47197/retos.v75.118076

Palavras-chave:

Biomecânica da flexão de braços, especialização desportiva, adaptação neuromuscular, eletromiografia (EMG), análise cinemática e cinética

Resumo

Introdução: O treino específico para cada desporto pode moldar as estratégias neuromusculares utilizadas em movimentos fundamentais, como as flexões de braços.

Objectivo: Comparar as características cinemáticas, cinéticas e electromiográficas das flexões de braços em ginastas, nadadores, atletas de atletismo e jogadores de basquetebol.

Metodologia: Oitenta atletas universitários do sexo masculino realizaram flexões de braços padronizadas enquanto a captura de movimento tridimensional, as plataformas de força duplas e a eletromiografia de superfície registavam os padrões de movimento, força e ativação muscular. As diferenças entre os grupos foram examinadas utilizando análises de variância multivariadas e univariadas, com tamanhos de efeito relatados para quantificar a relevância prática (α = 0,05).

Resultados: Os ginastas apresentaram maior estabilidade do tronco e elevada coativação; os nadadores exibiram maior mobilidade dos ombros, mas menor estabilidade do core; e os velocistas e jogadores de basquetebol demonstraram maiores taxas de desenvolvimento de força e ritmos concêntricos mais rápidos.

Discussão: As distintas características biomecânicas refletiram adaptações neuromusculares específicas para cada desporto. Conclusão: A execução de flexões revela estratégias subjacentes de controlo motor impulsionadas pela especialização, oferecendo aplicações valiosas para o treino individualizado, análise de desempenho e prevenção de lesões.

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02-02-2026

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

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Wu, R., & Choosakul, C. (2026). Análise biomecânica do exercício de flexão de braços em estudantes-atletas universitários do sexo masculino de diferentes cursos: um estudo comparativo baseado no desporto. Retos, 75, 557-571. https://doi.org/10.47197/retos.v75.118076