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Core and Hip-Knee Exercises in PFPS

EFFECT OF CORE STABILITY EXERCISES AND KNEE, HIP FOCUSED EXERSISES ON DYNAMIC KNEE VALGUS IN PATELLOFEMORAL PAIN SYNDROME

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07531550
Acronym
DKV
Enrollment
36
Registered
2026-04-15
Start date
2025-05-01
Completion date
2026-02-01
Last updated
2026-07-01

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

Conditions

DKV, Pain

Keywords

Dynamic knee valgus (DKV)

Brief summary

Study Purpose: The purpose of this study is to investigate the effect of adding core muscle strengthening exercises to a hip- and knee-focused exercise program on pain intensity, dynamic knee valgus (DKV), and functional outcomes in female patients with patellofemoral pain syndrome (PFPS). Research Question: Does adding core muscle strengthening exercises to a hip- and knee-focused exercise program have an effect on pain intensity, dynamic knee valgus (DKV), and functional outcomes in female patients with PFPS?

Detailed description

Detailed Description: Therefore, the current study aims to investigate the effect of adding core muscle strengthening exercises to a hip- and knee-focused exercise program on pain intensity, dynamic knee valgus (DKV), and functional outcomes in female patients with patellofemoral pain syndrome (PFPS). The findings of this study may provide a more effective rehabilitation program for female patients with PFPS, support the use of validated outcome measures in clinical practice, and improve symptom management during activities of daily living and functional recovery within a shorter period of time. This combined approach may be more efficient than the conventional hip- and knee-focused exercise program alone. Systematic assessment and monitoring of patient outcomes are recommended to guide clinical decision-making. Study Delimitations: This study will be delimited to: Female patients clinically diagnosed with patellofemoral pain syndrome (PFPS). Thirty-six participants aged 19-35 years with body mass index (BMI) up to 25 kg/m². Assessment procedures including Visual Analogue Scale (VAS) for knee pain, dynamic knee valgus (DKV) measured using Kinovea software, and the Knee Outcome Survey-Activities of Daily Living Scale (KOS-ADLS) for knee function. Treatment procedures: Group A (control group): hip- and knee-focused exercise program. Group B (study group): hip- and knee-focused exercise program in addition to core muscle stability exercises.

Interventions

BEHAVIORALCore Muscle Stability Exercise Program

core muscle training exercises, including the front plank, side plank, and dead bug exercises

BEHAVIORALhip and knee-focused exercise program

Open kinetic chain exercises including side-lying hip abduction, hip external rotation (clamshell), prone hip extension, short arc quadriceps, and straight leg raises (Khayambashi et al., 2012) ( Dolak et al., 2011). 1. Closed kinetic chain exercises including mini wall squats and terminal knee extensions (Hott et al., 2020). 2. Flexibility exercises targeting tight lower extremity soft tissues, including a seated hamstring stretch, standing quadriceps stretch, and standing wall stretch for the gastrocnemius

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Caregiver)

Masking description

Double-blinded study in which both participants and physiotherapists are unaware of group allocation due to the similarity of intervention protocols.

Intervention model description

This study uses a parallel assignment interventional model in which participants are allocated into two groups. The intervention group receives a core muscle stability exercise program, while the control group receives conventional physiotherapy. Both groups are treated concurrently throughout the study period, and outcomes are assessed before and after the intervention.

Eligibility

Sex/Gender
FEMALE
Age
19 Weeks to 35 Weeks
Healthy volunteers
No

Inclusion criteria

1. Thirty-six female participants diagnosed and referred with patellofemoral pain syndrome (PFPS) (retropatellar knee pain lasting more than 6 weeks). 2. Age range between 19-35 years. 3. Body Mass Index (BMI) up to 25 kg/m².

Exclusion criteria

1. History of previous surgeries of the lower limb. 2. Clinical evidence of knee joint complex disorders, including meniscus lesions, 3-patellar tendinopathy, chondral lesions, or knee osteoarthritis. 4-Presence of pronated foot.

Design outcomes

Primary

MeasureTime frameDescription
Dynamic Knee Valgus (DKV)Baseline (pre-intervention) and at 6 weeks (post-intervention)Dynamic knee valgus will be assessed by measuring the knee valgus angle in degrees during functional tasks. Higher values indicate greater valgus deviation and poorer knee alignment.
Pain Intensity During MotionBaseline (pre-intervention) and at 6 weeks (post-intervention)Pain intensity during movement will be assessed using the Visual Analog Scale (VAS). The VAS is a 10-cm scale ranging from 0 (no pain) to 10 (worst imaginable pain). Higher scores indicate greater pain intensity.
Knee FunctionBaseline (pre-intervention) and at 6 weeks (post-intervention)Knee function will be assessed using the Knee Outcome Survey (KOS). The KOS score ranges from 0 to 100, where higher scores indicate better knee function.
Pain Intensity at RestBaseline (pre-intervention) and at 6 weeks (post-intervention)Pain intensity at rest will be assessed using the Visual Analog Scale (VAS). The VAS is a 10-cm scale ranging from 0 (no pain) to 10 (worst imaginable pain). Higher scores indicate greater pain intensity.

Countries

Egypt

Contacts

PRINCIPAL_INVESTIGATORRadwa M Hussien, Pt, PhD

Cairo University - Faculty of Physical Therapy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 2, 2026