Effect of Corrective Exercises on Dynamic Knee Valgus

NCT06776562 | Recruiting

• 1 other identifier: İK-2024-03
• Study Type: interventional
• Target: 33
• Locations: 1 country
• Sites: 1

Brief Summary

Dynamic knee valgus (DKV) is a movement pattern of the lower limb potentially consisting of a combination of adduction and internal rotation of the femur, knee abduction, tibial anterior translation, tibial external rotation and ankle eversion. Average "normal" performance during a fall jump landing mission knee valgus angle should be in the range of 7-13 degrees in women and 3-8 degrees in men. This faulty movement pattern is a common dysfunction observed in the lower limb during dynamic activities. On the other hand, this is reported to be the underlying mechanism of knee injuries. Changes in knee valgus increase abnormal stresses on the tibiofemoral joint and increase the risk of injuries such as anterior cruciate ligament injuries, patellofemoral pain, iliotibial band syndrome, chronic ankle instability, acute lateral ankle sprains. The main cause of DKV is deficits in neuromuscular control and therefore injury prevention and rehabilitation strategies focus on improving neuromuscular control to avoid these injury mechanisms. There are conflicting results in the literature regarding which of the exercise approaches is superior for DKV, and there is a lack of studies evaluating 2D movement analysis, muscle mechanics and performance of corrective exercise training. Identifying individuals with abnormal movement patterns and those at risk is important to prevent future injuries. The aim of the study was to investigate the effect of corrective exercises on lower extremity biomechanics and performance in individuals with asymptomatic dynamic knee valgus.

Conditions

Dynamic Knee Valgus; Frontal Plan Projection Angle; Motion Analysis; Corrective Exercise; MyotonPRO

Outcome Measures

Primary Outcomes (3)

• Frontal plan projection angle evaluation

  It will be evaluated with the Single Leg Drop Jump test. Kinovea® 2D motion two-dimensional video analysis software will be used to measure the knee-valgus/varus anterior plane projection angle (FPPA).

  Before the intervention, up to 8 weeks

• Single leg squat test

  During the test, they will be asked to perform a single-leg squat from a static position to at least 60° knee flexion and then return to the starting position. Kinovea® 2D motion two-dimensional video analysis software will be used for the measurement.

  Before the intervention, up to 8 weeks

• Viscoelastic properties of muscle

  The viscoelastic properties of the participants' muscle will be measured using a myotonometer (MyotonPRO, Tallinn, Estonia). It will be performed on the quadriceps, hamstring, gastrocnemius and hip adductor muscles. Individuals will be asked to contract the muscle and the center of the muscle mass will be identified and marked. The muscle will then be asked to relax. For the measurement, the probe is placed over the muscle, perpendicular to the skin surface, and mechanical force is applied to the subcutaneous tissue for a constant 15 milliseconds. The interval between each pulse is 8 ms and 5 pulses.

  Before the intervention, up to 8 weeks

Secondary Outcomes (5)

• Static Balance Measurement

  Before the intervention, up to 8 weeks

• Dynamic Balance Measurement

  Before the intervention, up to 8 weeks

• Single Leg Forward Jump Test

  Before the intervention, up to 8 weeks

• Three Step Forward Jump Test

  Before the intervention, up to 8 weeks

• Vertical Jump Test

  Before the intervention, up to 8 weeks

Study Arms (2)

Exercise group

EXPERIMENTAL

Intervention includes corrective exercises for dynamic knee valgus

Other: Exercise

Control group

ACTIVE COMPARATOR

The control group will be followed without intervention.

Other: Control

Interventions

Exercise OTHER

Education on activities of daily living will be provided. In addition, a program including muscle strengthening, neuromuscular control and flexibility exercises for lower extremity and trunk muscles will be performed. Exercise Program will be performed for 8 weeks, 2 sessions per week.

Exercise group

Control OTHER

Education will be provided for activities of daily living. Individuals with dynamic knee valgus in the control group will not receive any intervention. Exercise program will be implemented after the end of the study.

Control group

Eligibility Criteria

• Age: 18 Years - 25 Years
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Between 18 and 25 years of age
• Have asymptomatic dynamic knee valgus
• Being woman

You may not qualify if:

• BMI≥ 30 kg/cm2
• Lower extremity musculoskeletal pain
• Lower extremity injury in the past 1 year
• History of lower limb surgery
• Neurological condition that may affect balance and coordination during the test
• More than half an hour of intense exercise per week
• Those who exercise vigorously for more than half an hour per week

Sponsors & Collaborators

• Medipol University: lead
• Istanbul Kültür University: collaborator

Study Sites (1)

Istanbul Medipol University

Istanbul, Turkey (Türkiye)

RECRUITING

MeSH Terms

Interventions

Exercise

Intervention Hierarchy (Ancestors)

Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Lecturer

Study Record Dates

• First Submitted: January 7, 2025
• First Posted: January 15, 2025
• Study Start: October 11, 2024
• Primary Completion: March 22, 2025
• Study Completion: June 15, 2025
• Last Updated: January 15, 2025

Record last verified: 2025-01

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)