The effect of biofeedback exercises on anterior knee pain syndrome

The efficacy of biofeedback exercises of hip abductors and external rotators muscles on pain and muscle electromyographic activity in people with patellofemoral pain syndrome

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20221214056819N1

Enrollment

Registered

2023-11-01

Start date

2023-12-06

Completion date

Unknown

Last updated

2023-11-13

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: biofeedback exercises of hip abductors and external rotators muscles with routine physiotherapy treatments (stretching exercises, gluteal and quadriceps isometric e

Eligibility

Sex/Gender

All

Age

20 Years to 40 Years

Inclusion criteria

Inclusion criteria: Patients with patellofemoral pain syndrome with 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). Method of measurement: Visual Analog Scale.;Maximum muscle isometric contraction force. Timepoint: Measurement of maximum muscle isometric contraction force at the beginning of the study (before the intervention) and at the end of the study (8 weeks after the intervention). Method of measurement: Hand dynamo-meter.;Muscle electromyographic activity. Timepoint: Measurement of muscle electromyographic activity at the beginning of the study (before the intervention) and at the end of the study (8 weeks after the intervention). Method of measurement: Surface electromyography.	—

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). Method of measurement: Visual Analog Scale.;Maximum muscle isometric contraction force. Timepoint: Measurement of maximum muscle isometric contraction force at the beginning of the study (before the intervention) and at the end of the study (8 weeks after the intervention). Method of measurement: Hand dynamo-meter.;Muscle electromyographic activity. Timepoint: Measurement of muscle electromyographic activity at the beginning of the study (before the intervention) and at the end of the study (8 weeks after the intervention). Method of measurement: Surface electromyography.

—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactMehdi Banan

Shahid Beheshti University of Medical Sciences

mehdibanan182@gmail.com+98 21 8863 1084

Outcome results

None listed

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