Espinosa MJA, Adame TJH, Albarrán GU, Galván GJÁ

Language: Spanish
References: 17
Page: 66-73
PDF size: 62.36 Kb.

ABSTRACT

Introduction: The patellofemoral pain syndrome is an anterior or retropatellar pain in absence of other pathology. Muscular desbalance and weakness of quadriceps are considered some of the causes. The purpose of this study is to see the electro physiologic and isokinetic changes of the extensor mechanism in patients patellofemoral pain syndrome. Material y methods: Transverse comparative, observational study of 22 patients of study group and 23 subjects of the control group of both sexes ranging from the age of 15 to 40 years. All patients had an Isokinetic test made at angular velocities of 90°/s and 180°/s to determine pick torque, work and power. The electrophysiologic analysis for: vast medial oblique, vast lateral, semitendinoso, short portion of the femoral biceps for 5 isotonic contractions. Amplitudes, onset timing and extensor ratio and flexor ratio were determined. Results: There was found a deficit with statistical difference in the isokinetic force and the amplitude of patients in the study group as compared with the controlled group. Conclusions: There is a deficit in isokinetic strength and the amplitud in the patients with patellofemoral pain syndrome.

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