BALANCE HAMSTRINGS/QUADRÍCEPS ON SUBJECT WITH TOTAL RUPTURE OF ANTERIOR CRUCIATE LIGAMENT

Abstract

This study was designed to evaluate the relationship hamstrings/quadriceps in the ranges of 30 ° and 15 ° of flexion during contraction dynamics Concentric in subjects with complete rupture of the anterior cruciate ligament (LCA) unilaterally. Subjects sixteen (16) were evaluated with the male gender average age of 33 years and average time of injury 5 months. For evaluation isokinetic dynamometer was used isokinetic REV9000. The subjects were placed in the unit in accordance with the guidelines of the manufacturer. The test was conducted isokinetic with five repetitions in speed 60 °/s, in concentric manner. The parameter studied the relationship was hamstrings/quadriceps independent of the angle, 15 ° to 30 ° of flexion. It was done with a heating prior ergometric bicycle, stretching the quadriceps and hamstrings, and adaptation with five repetitions sub maximal in the unit. Standardized first assess the member without injury and later with the injury. The processing of the data was performed using the Mann-Whitney a test using a significance level of 5% ( = 0.05). The results indicate significant difference when comparing the relationship hamstrings / quadriceps independent of the angle and scale of 30 (p = 0.001), and 15 of flexion of the knee joint (p = 0.047) of the injured member with the State without injury. It follows that when you take the value of peak torque of the extent articulate on 15 and 30 to calculate the ratio flexor / extender in subjects with rupture of the LCA, and best way to check the stability articulate.