Sinergismo entre o vasto lateral e vasto medial oblíquo durante a marcha após a reconstrução do ligamento cruzado anterior
DOI:
https://doi.org/10.11606/issn.2317-0190.v26i4a168198Palavras-chave:
Eletromiografia, Ligamento Cruzado Anterior, Síndrome da Dor Patelofemoral/reabilitaçãoResumo
Objetivo: O objetivo deste estudo foi comparar a co-contração muscular (CCM) e ativação dos músculos vasto lateral (VL) vasto medial oblíquo (VMB) durante a marcha e uma amostra saudável – grupo controle (GC) e pacientes submetidos a reconstrução do ligamento cruzado anterior (RLCA). Métodos: Vinte e três indivíduos participaram neste estudo, 14 GC e 9 RLCA. A atividade mioelétrica do VL e VMO foram captados para cálculo da CCM. A razão VL/VMO foi obtida dividindo o sinal normalizado desses dois músculos em cada ponto da curva. O valor da CCM e a relação de ativação na fase de apoio duplo, fase de apoio simples, fase de apoio terminal e fase de balanço foram obtidas pelo cálculo da média aritmética dos valores de intensidade da curva comum em cada intervalo. Resultado: CCM foi significativamente menor no grupo RLCA durante a fase de apoio dupla (p=0.001), efeito máximo (1.72). Não foram encontradas diferenças entre as outras comparações. Conclusão: O resultado desse estudo mostrou que a contração dos músculos VL e o VMO na fase inicial de apoio duplo da marcha foi diferente entre indivíduos saudáveis e submetidos a RLCA. Este achado pode estar relacionado a diminuição da estabilidade patelofemoral durante a resposta a carga, aumentando o potencial risco de desenvolver lesões nesta articulação.
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