This study aimed to examine the effects of closed kinetic chain exercise using electromyography (EMG) biofeedback for selective strengthening of the vastus medialis oblique (VMO) on functional characteristics of lower extremity muscles in patellofemoral pain syndrome (PFPS) patients. The subjects of this study were 30 PFPS patients and they were equally and randomly assigned to a control group ...

Background Patellofemoral pain syndrome (PFPS) is one of the most common causes anterior knee seen in adolescents and adults under age 60 yr. The same quadriceps exercise as forward lunge important treatment PFPS, selective strengthening vastus medialis oblique muscle (VMO) also required. Purpose purpose this study was to compare whether with hip adduction (ADD) neutral position (NEU) affected ...

Patellofemoral pain syndrome (PFPS) is the most common cause of knee pain in the outpatient setting. It is caused by imbalances in the forces controlling patellar tracking during knee flexion and extension, particularly with overloading of the joint. Risk factors include overuse, trauma, muscle dysfunction, tight lateral restraints, patellar hypermobility, and poor quadriceps flexibility. Typic...

BACKGROUND Patellofemoral pain syndrome (PFPS), also known as Anterior Knee Pain, is a common cause of recurrent or chronic knee pain. The etiology is considered to be multifactorial but is not completely understood. At the current time the leading theory is that pathomechanics in the patellofemoral joint leads to PFPS. Traditionally, conservative treatment has focused on improving strength and...

BACKGROUND The relationship between one-leg static standing balance (OLSSB) and patellofemoral pain syndrome (PFPS) is unknown. HYPOTHESIS OLSSB decreases in patients with PFPS. DESIGN Prospective case series. METHODS Fifty-two women with unilateral PFPS were enrolled in this study. OLSSB was evaluated with a stabilometer. Q angle was measured with a lengthened-arm universal goniometer. L...

Objectives: To analyze the electrical activity of the vastus medialis obliquus (VMO), vastus lateralis longus (VLL) and vastus lateralis obliquus (VLO) muscles of individuals with patellofemoral pain syndrome (PFPS) during maximum voluntary isometric contraction (MVIC) of lower leg extension with the knee at 30°; to assess pain using a visual analogue scale (VAS); and to assess patellar positio...

OBJECTIVES To analyze the electrical activity of the vastus medialis obliquus (VMO), vastus lateralis longus (VLL) and vastus lateralis obliquus (VLO) muscles of individuals with patellofemoral pain syndrome (PFPS) during maximum voluntary isometric contraction (MVIC) of lower leg extension with the knee at 30 degrees; to assess pain using a visual analogue scale (VAS); and to assess patellar p...

BACKGROUND Patellofemoral pain syndrome (PFPS) is the most common overuse injury in runners. Recent research suggests that hip mechanics play a role in the development of this syndrome. Currently, there are no treatments that directly address the atypical mechanics associated with this injury. OBJECTIVE The purpose of this study was to determine whether gait retraining using real-time feedbac...

This prospective study determined whether selected anatomic measures identified women at increased risk of patellofemoral pain syndrome (PFPS) and shin splints (SS). Ten anatomic measures were performed on 748 women before basic training at the Marine Corps Recruit Depot (MCRD), Parris Island, South Carolina. Recruits were then followed throughout basic training for occurrence of injuries. Logi...

STUDY DESIGN Cross-sectional. OBJECTIVE To determine if females presenting with patellofemoral pain syndrome (PFPS) from no discernable cause other than overuse demonstrate hip weakness and increased hip internal rotation, hip adduction, and knee valgus during stair descent. BACKGROUND Historically, PFPS has been viewed exclusively as a knee problem. Recent findings have indicated an associ...