The effect of strengthening exercises on anterior knee pain syndrome

The efficacy of of purposeful strengthening exercises based on biomechanical defects on ultrasonographic parameters and kinematic variables in people with Patellofemoral Pain Syndrome

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20200825048523N2

Enrollment

Registered

2022-12-13

Start date

2022-12-31

Completion date

Unknown

Last updated

2023-02-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patellofemoral pain syndrome. Patellofemoral disorders

Interventions

Intervention 1: Intervention group: specific strengthening exercises of the vastus medialis oblique muscle with routine physiotherapy treatments (stretching exercises, gluteal and quadriceps isometric

Eligibility

Sex/Gender

All

Age

20 Years to 40 Years

Inclusion criteria

Inclusion criteria: Patients with patellofemoral pain syndrome with lateral gliding patella Pain at least 3 on the visual analog scale Knee pain when running, jumping, sitting and standing up

Exclusion criteria

Exclusion criteria: History of patella dislocation History of knee surgery

Design outcomes

Primary

Measure	Time frame
Pain intensity. Timepoint: Measurement of pain intensity at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Visual Analog Scale.;Distance between patellar tip and trochlear groove. Timepoint: Measurement of distance between patellar tip and trochlear groove at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Ultrasonography.;Femoral sulcus angle. Timepoint: Measurement of femoral sulcus angle at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Ultrasonography.;Patella offset position. Timepoint: Measurement of patella offset position at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Ultrasonography.;Patella condylar distance. Timepoint: Measurement of patella condylar distance at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Ultrasonography.;Knee kinematic. Timepoint: Measurement of knee kinematic at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Motion analysis device.;Hip kinematic. Timepoint: Measurement of hip kinematic at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Met	—

Measure

Time frame

Pain intensity. Timepoint: Measurement of pain intensity at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Visual Analog Scale.;Distance between patellar tip and trochlear groove. Timepoint: Measurement of distance between patellar tip and trochlear groove at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Ultrasonography.;Femoral sulcus angle. Timepoint: Measurement of femoral sulcus angle at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Ultrasonography.;Patella offset position. Timepoint: Measurement of patella offset position at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Ultrasonography.;Patella condylar distance. Timepoint: Measurement of patella condylar distance at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Ultrasonography.;Knee kinematic. Timepoint: Measurement of knee kinematic at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: Motion analysis device.;Hip kinematic. Timepoint: Measurement of hip kinematic at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Met

—

Secondary

Measure	Time frame
Level of functional disability. Timepoint: Measurement of level of functional disability at the beginning of the study (before the intervention), at the end of the study (8 weeks after the intervention) and 3 months after the intervention In the follow-up period. Method of measurement: The knee injury and osteoarthritis outcome score.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactSaeed Mikaili

Shahid Beheshti University of Medical Sciences

saeed.mikaely@yahoo.com+98 21 8863 1084

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026