Retraso de la latencia de activación de los músculos vasto medial oblicuo y vasto lateral en individuos con síndrome de dolor patelofemoral

Eduardo Enrique Guzmán Muñoz, Yeny Fabiola Concha Cisternas


Propósito: determinar la latencia de activación de los músculos vasto medial oblicuo (VMO) y vasto lateral (VL) en individuos con síndrome de dolor patelofemoral (SDPF). Metodología: Estudio de casos y controles. Un total de14 participantes femeninos con SDPF y 15 participantes femeninos sin SDPF realizaron una prueba de perturbación repentina de los miembros inferiores en dirección anterior y posterior. Durante esta se midió la latencia de activación electromiográfica de los músculos VMO y VL. Se utilizó la prueba t de student para comparar la latencia muscular entre los grupos. Se consideró un nivel alfa de 0,05. Resultados: Durante una desestabilización anterior, se observó un retraso significativo en la latencia de activación de los músculos VMO (p < 0,001) y VL (p = 0,019) en los participantes con SDPF. Cuando fueron sometidos a una desestabilización posterior, también se evidenció una respuesta tardía en la activación del los músculos VMO (p = 0,023) y VL (p < 0,038) en los individuos con SDPF. Conclusiones: Los resultados de este estudio señalan que los individuos con SDPF presentan un déficit motor reflejado en el retraso de la latencia muscular del VMO y del VL durante una perturbación repentina en el plano sagital.

Palabras clave

síndrome de dolor patelofemoral; latencia muscular; tiempo de reacción muscular; electromiografía.

Texto completo:



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