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Comparative Effects Of Clamshell And Short Arc Quadriceps Exercises In Patellofemoral Pain

NCT07646431 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 34

Last updated 2026-06-12

No results posted yet for this study

Summary

This is a research study to compare two different exercises for people who have patellofemoral pain syndrome. Patellofemoral pain syndrome means pain around or behind the kneecap, which is also called "runner's knee".

People in this study will be divided into two groups by chance. One group will do clamshell exercises. This exercise strengthens hip muscles. The other group will do short arc quadriceps exercises. This exercise strengthens thigh muscles near the knee. Both groups will do their exercises for the same number of weeks.

The main goal of this study is to see which exercise reduces knee pain better and helps patients do daily activities more easily. We will also check if quality of life improves after doing these exercises.

Pain level, knee function, and quality of life will be checked before starting exercises and again after finishing the exercise program.

The results may help doctors and physical therapists choose the best exercise for patients with kneecap pain.

Conditions

  • Patellofemoral Pain Syndrome

Interventions

PROCEDURE

Clamshell Exercise

A hip strengthening exercise performed in side-lying position with hips and knees flexed. Patient opens top knee like a clamshell while keeping feet together to strengthen gluteus medius and external rotators.

PROCEDURE

Short Arc Quadriceps Exercise

A knee strengthening exercise performed in short range of motion from 30 degrees to full extension. Patient extends knee against resistance while quadriceps muscle is activated, focusing on vastus medialis obliquus.

Sponsors & Collaborators

  • Green International University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-11-02
Primary Completion
2026-04-29
Completion
2026-05-05

Countries

  • Pakistan

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07646431 on ClinicalTrials.gov