Effects of Hip Abductor and External Rotator Strength Training in Patients With Patellofemoral Pain Syndrome

National Taiwan University Hospital85 enrolled

Overview

The first purpose was to compare the difference between leg press exercise(LPE) and additional hip abductor and external rotator muscle strength training to leg press exercise(LPE+HAE) in muscle strength, hip kinematics during step down, pain severity and function for patients diagnosed with patellofemoral pain syndrome. The second one was to discover the relationship between the change in muscle strength performance and the difference of hip joint kinematics post treatment.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

Conditions

Patellofemoral Pain Syndrome

Interventions

Additional Hip Muscle Strengthening to Leg Press ExerciseOTHER

Leg Press ExerciseOTHER

Eligibility

Sex: ALLMin age: 19 YearsMax age: 50 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Patellofemoral pain syndrome ( Bilateral or unilateral) * Special tests: crepitus during compression test, patellar grind test (Clarke's sign), pain during compression test, palpation ( at least 2 ) * Below 50 years old * Pain :after long sitting, up/down stair, squat, kneeling, running \& jumping ( at least 2 ) * Pain duration at least 1 month * At least 1 item of PSS score more than 3 cm Exclusion Criteria: * Knee operation * Central or peripheral neurological deficits * Obvious knee joint or lower extremity malalignment * People involved in competitive sports * PSS sub-scale pain experienced last week more than 8cm * Have been taking anti-inflammatory drugs , received anti-inflammatory injection or received other therapy for past 3 months

Locations (1)

The School and Graduate Institute of Physical Therapy of National Taiwan University

Taipei, Taiwan

Outcomes

Primary Outcomes

Muscle Strength by hand-held dynamometry, hip joint kinematics during step down by electromagnetic motion tracking system (FASTRAK, Polhemus ), pain severity by PFPS pain severity scale (PSS), functional performance by Anterior Knee Pain Scale(AKP).

Time frame: Pre and Post 8 weeks of exercise

Data from ClinicalTrials.gov

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