Knee Strengthening With Hip vs. Ankle Exercises in Women With Patellofemoral Pain Syndrome

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-07-01

Study Completion Date

2024-07-31

Brief Summary

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Eight weeks of telehealth-based supervised exercise effectively reduced DKV and pain in women with anterior knee pain. Both intervention groups demonstrated comparable benefits.

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Detailed Description

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This study compared the effects of knee strengthening combined with either hip or ankle joint exercises on dynamic knee valgus (DKV), visual analogue scale (VAS) scores during activity, tendon stiffness, muscle structure, ankle range of motion, and muscle strength in women with anterior knee pain. Forty-five female recreational athletes aged 20-40 with anterior knee pain were randomly assigned to three groups: hip + knee exercises (HK group, n = 15), ankle + knee exercises (AK group, n = 15), and stretching alone (control group, n = 15). The HK and AK groups received supervised telehealth-based exercise sessions (30 minutes/day, 3 times/week for 8 weeks), while the control group received only an educational pamphlet. Assessments were conducted at baseline, 4 weeks, and 8 weeks.

Conditions

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Patellofemoral Pain Syndrome Anterior Knee Pain Exercise Therapy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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HK group

hip + knee joint exercise group

Group Type EXPERIMENTAL

hip + knee joint exercise group

Intervention Type OTHER

Hip: squat, glute bridge and gluteus medius exercise Knee: knee flexor and extensor, isometric squat hold

AK group

ankle + knee joint exercise group

Group Type EXPERIMENTAL

ankle + knee joint exercise group

Intervention Type OTHER

Knee: knee flexor and extensor, isometric squat hold Ankle: plantar flexor, dorsi flexor and lunge

Stretching group

Group Type SHAM_COMPARATOR

Stretching group

Intervention Type OTHER

Education Handout on Lower Limb Stretching

Interventions

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hip + knee joint exercise group

Hip: squat, glute bridge and gluteus medius exercise Knee: knee flexor and extensor, isometric squat hold

Intervention Type OTHER

ankle + knee joint exercise group

Knee: knee flexor and extensor, isometric squat hold Ankle: plantar flexor, dorsi flexor and lunge

Intervention Type OTHER

Stretching group

Education Handout on Lower Limb Stretching

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

1. Female recreational athletes aged 20-40 years who engage in regular exercise
2. Experiencing pain in the anterior or surrounding patella during at least two or more of the following activities: walking, running, jumping, kneeling, squatting, climbing stairs, or prolonged sitting
3. A pain index of 3 or higher on the Numeric Pain Rating Scale (NPRS) and symptoms persisting for at least 3 months
4. Knee pain unrelated to trauma.

Exclusion Criteria

1. Inability to operate a smartphone or computer
2. History of fractures or surgeries involving the hip, knee, ankle, or foot
3. History of meniscus, knee ligament injuries, or ankle sprains within the last six months
4. Knee ligament laxity, inflammation, swelling, patellar dislocation, or subluxation
5. Cognitive impairment or inability to follow simple instructions
6. History of cardiovascular or neurological disorders
7. Advised by a physician to avoid exercise. Use of over-the-counter pain medication was not an exclusion criterion.

Minimum Eligible Age

20 Years

Maximum Eligible Age

40 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No