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NCT Number: NCT07305610

INFLUENCE OF SELECTED POSITIONS ON HIP ABDUCTORS STRENGTH AND ACTIVATION IN PATELLOFEMORAL PAIN SYNDROME IN MALES

The study aims to explore the effect of body position (side-lying versus standing) on hip abductors muscle strength and activation in individuals with and without PFPS and then to compare these measures between the two groups in each position

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Key information

Conditions

Patellofemoral Pain (PFPS) Joint Diseases Musculoskeletal Diseases Patellofemoral Pain Syndrome

Age range

18 year–35 year

Sex eligibility

Male

Study type

Observational

Primary location

About this study

A cross-sectional comparative study involving 44 subjects (22 subjects with PFPS and 22 healthy controls), aged 18-35 years. The study will measure hip abductor muscle strength (Peak torque, Maximal total work) using the Biodex Isokinetic System 4 PRO and muscle activity (%MVC) of the gluteus medius, gluteus maximus, and tensor fascia lata using Surface EMG (Noraxon Ultium EMG). Measurements will be taken in both standing and side-lying positions.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age 18-35 years; Normal BMI; Subjects in the PFPS group diagnosed with unilateral PFPS by an orthopedist; Healthy individuals without knee pain (for the control group)

Exclusion criteria

  • History of lower limb surgery; Any neurological disorders; Musculoskeletal disorders affecting the lower limb; Additional sources of anterior knee pain (tendonitis, Osgood-Schlatter, bursitis, etc.); Any inflammatory diseases

Treatment and study plan

Primary outcomes

  1. Muscle activity (%MVC) of the gluteus medius, gluteus maximus, and tensor fascia lata

    Time frame: During the assessment procedure (single time point)

    using SEMG

  2. Peak torque (Nm) of hip abductors muscles

    Time frame: During the assessment procedure (single time point)

    using isokinetic

Secondary outcomes

  1. Maximal total work (J) during concentric and eccentric contractions

    Time frame: During the assessment procedure (single time point)

    Using Isokinetic

  2. The Arabic Version of the Kujala Score (Anterior Knee Pain Scale)

    Time frame: Baseline/Pre-assessment

    A questionnaire

Study contacts

Contact information is provided by the study sponsor or research team.

MOHAMED GOUDA MOHAMED, bachelor of physical therapy

CONTACT

[email protected]

+201092948701

Sponsors and collaborators

Lead sponsor

Ahram Canadian University

Other

Registry information

Acronym: PFPS

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Dec 26, 2025
Registry last updated
Dec 26, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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