Efeitos imediatos de duas técnicas de mobilização do tornozelo na amplitude de dorsiflexão e valgo dinâmico de joelho: um ensaio clínico aleatório

Abstract

Introduction: Restriction in the movement of ankle dorsiflexion in a closed kinetic chain can generate a series of biomechanical changes and may be associated with dynamic knee valgus (VDJ). There are different techniques for ankle amplitude gain and the Mulligan concept that combines passive mobilization with active movement has been shown to be effective in restoring ankle range of motion. Objective: To verify the immediate effects of the techniques of Mobilization with Therapist and Auto Mobilization of the ankle in the gain of ankle dorsiflexion and Dynamic Knee Valgus. Methods: Twenty-two lower limbs with ankle dorsiflexion and VDJ deficits, evaluated by Weight Bearing Lunge Test and Foward Step Down Test, respectively, were included. These were divided into two groups, where one performed Mobilization with therapist and the other Self mobilization, with the same protocol of 3 sets of 10 repetitions and at the end of each repetition it was requested a support at maximum amplitude for 5 seconds. Statistical analysis: We assumed a significance level of 5% for data analysis. The difference between the groups was calculated by means of mixed linear models. Results: Ankle mobility improvement and no statistically significant changes in the Dynamic Knee Valgus were observed immediately after therapy, with no difference between the groups. Conclusion: The results suggest that interventions have immediate effects on ankle amplitude gain