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

Not Applicable

Completed

• Conditions: Patellofemoral Pain Syndrome
• Interventions: Other: Leg Press Exercise; Other: Additional Hip Muscle Strengthening to Leg Press Exercise

• Registration Number: NCT00736736
• Lead Sponsor: National Taiwan University Hospital

Brief Summary

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.

Detailed Description

Not available

Study Timeline

• Study Start: 2008-03
• Status Verified: 2008-06
• Primary Completion: 2008-07
• Study First Submitted: 2008-08-14
• Study First Submitted QC: 2008-08-14
• Last Update Submitted: 2008-08-14
• Study First Posted: 2008-08-18
• Last Update Posted: 2008-08-18

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 85

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

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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

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Leg Press	Leg Press Exercise	Leg Press exercise for 3 times/week and sustain for 8 weeks.
Hip Exercise	Additional Hip Muscle Strengthening to Leg Press Exercise	Additional hip abductor and hip external rotator strength training to leg press exercise for people in this group. All participants received exercise for 3 times per week for 8 weeks.

Primary Outcome Measures

Name	Time	Method
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).	Pre and Post 8 weeks of exercise

Trial Locations

Locations (1)

The School and Graduate Institute of Physical Therapy of National Taiwan University; 🇨🇳 Taipei, Taiwan