clinical effectiveness of functional training versus strengthening exercise on pain and function in people with patellofemoral pain syndrome

Objective: To investigate the effectiveness of functional training versus strengthening exercise on pain and function in people with patellofemoral pain syndrome Design of study: Double blind randomized controlled clinical trial Subjects: People with patellofemoral pain syndrome Inclusion criteria: Subjects of 18-45 y age; insidious onset of symptoms not related to trauma; peripatellar or retropatellar knee pain during at least 2 of activities of stair climbing, hopping, running, squatting, kneelingand prolonged sitting; presence of pain at least 4 weeks; presense of pain at least 30 minutes per day most days of week; pain with compression on the patella; pain on palpation of patellar facet; pain level 3 of a 10-cm visual analog scale Exclusion criteria: Meniscal, ligamentus or cartilage injury; patellar tendon, ilotibial band or pesanserine tenderness; evidence of effusion; hip or lumbar referred pain; history of recurrent patellar subluxation or dislocation; patellar fracture; prolonged use of anti inflammatory drug or corticosteroid; history of head injury or vestibular disorder within the last 6 months; pregnancy; trauma to knee joint; history of lower extremity surgery; osgood-schlatter or sinding-larsen-johanssen syndromes sample size:30 subjects withl patellofemoral pain syndrome Interventions: The subjects is randomly assigned to strengthening exercise group and functional training group main outcome measures:pain, subjective and objective function is measured before and after intervention. pain intensity is quantified using a 10-cm visual analog scale, subjective function is assessed using kujala patellofemoral scale and objective function is also examined using performance functional tests

Ahvaz Jundishapur University Of Medical Sciences