O linimento utilizado no boxe pode aumentar a força muscular do joelho? Um estudo controlado randomizado em atletas de Muay Thai

Autores

  • Lee David Johnson School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand; Research Center in Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Khon Kaen, Thailand https://orcid.org/0009-0004-5627-4606
  • Theera Rittirod Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand https://orcid.org/0009-0002-7374-6201
  • Kurusart Konharn School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand; Research Center in Back, Neck, Other Joint Pain and Human Performance (BNOJPH), Khon Kaen, Thailand https://orcid.org/0000-0003-3312-8740

DOI:

https://doi.org/10.47197/retos.v76.117976

Palavras-chave:

Intervenção ergogénica, dinamometria isocinética, binário máximo, intervenção terapêutica, características de binário em função do tempo

Resumo

Objectivo: Avaliar se um linimento desportivo (Namman Muay; NM) melhora agudamente o desempenho dos extensores do joelho em comparação com um controlo utilizando óleo mineral infantil em atletas de Muay Thai, através de dinamometria isocinética.

Desenho: Foi realizado um estudo exploratório, randomizado e controlado, com alocação oculta, incluindo 24 atletas do sexo masculino de Muay Thai, divididos em dois grupos.

Métodos: No grupo experimental (NM), foi aplicada uma dose única de 5 mL do linimento no quadríceps dominante, seguida de um período de absorção de 20 minutos. O grupo controlo (BO) recebeu óleo mineral infantil utilizando o mesmo procedimento. Os desfechos medidos incluíram o binário de pico relativo (N·m/kg) a 60°/s e 180°/s, o binário a 180 ms, o trabalho total, o trabalho durante a primeira à terceira fase e a potência de pico (W/kg).

Resultados: A ANCOVA favoreceu o NM a 60°/s para o binário máximo relativo [F(1, 21) = 9,77, p = 0,005, ηp² = 0,318] e para o binário a 180 ms [F(1, 21) = 15,08, p = 0,001, ηp² = 0,418]. A 180°/s, os efeitos favoreceram o NM para o torque máximo relativo [F(1, 21) = 4,82, p = 0,040] e para o torque a 180 ms [F(1, 21) = 5,29, p = 0,032]. A potência máxima a 60°/s também favoreceu o NM e é interpretada de forma exploratória [F(1, 21) = 7,15, p = 0,014, ηp² = 0,254]. As métricas exploratórias sugeriram uma tendência para um maior torque inicial e uma maior proporção de trabalho na fase inicial com NM em comparação com BO, embora as diferenças não tenham sido estatisticamente significativas.

Conclusões: O linimento NM melhora agudamente o torque extensor do joelho em atletas de Muay Thai, incluindo o torque sincronizado a 180 ms, com os maiores e mais consistentes efeitos a 60°/s. A potência máxima a 60°/s melhorou, mas isto deve ser interpretado com cautela e considerado exploratório. Estes achados são preliminares e requerem confirmação em ensaios com tamanho amostral suficiente.

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Publicado

02-03-2026

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

Como Citar

Johnson, L. D., Rittirod, T., & Konharn, K. (2026). O linimento utilizado no boxe pode aumentar a força muscular do joelho? Um estudo controlado randomizado em atletas de Muay Thai. Retos, 76, 92-101. https://doi.org/10.47197/retos.v76.117976