The Effects of Open Chain Versus Closed Chain Strengthening on Dynamic Valgus During a Step Down Test

Last updated: March 30, 2024
Sponsor: Alvernia University
Overall Status: Active - Recruiting

Phase

N/A

Condition

N/A

Treatment

Exercise

Clinical Study ID

NCT06348836
2123624-1/2
  • Ages 18-65
  • All Genders
  • Accepts Healthy Volunteers

Study Summary

The goal of this clinical trial is to compare the effects of different exercises programs in individuals with abnormal knee motion. The main question it aims to answer are:

  • In individuals with abnormal knee motion and without knee pain, does a weight-bearing exercise program reduce abnormal knee motion during a step-down test better than a non weight-bearing exercise program? Participants will

  • Perform a stepdown test while undergoing motion analysis and electromyograph (EMG) recording.

  • Participants will then be placed either into a weight-bearing or non weight-bearing exercise group. Exercises will be performed 3 times per week for 6 weeks.

  • Further motion analysis and EMG data will be collected to test for differences. Researchers will compare individual results before and after exercise, and between-group results before and after exercise to see if one exercise program helps improved abnormal knee motion more than the other.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Dynamic knee valgus with observed step down test

Exclusion

Exclusion Criteria:

  • Presently experiencing lower extremity pain
  • Lower extremity surgery within the past 1 year

Study Design

Total Participants: 10
Treatment Group(s): 1
Primary Treatment: Exercise
Phase:
Study Start date:
March 22, 2024
Estimated Completion Date:
February 28, 2025

Study Description

The goals of this trial is to compare the effects of a closed kinetic chain exercise program to an open kinetic chain exercise program in individuals without knee pain who also have dynamic knee valgus during a step-down test.

Individuals will be screened for participation via visual observation. Those with an observable medial collapse of the knee joint will then receive motion capture testing of the step down test (three trials) with electromyography recording of the gluteus medius, quadriceps and hamstring muscle groups. Baseline maximum voluntary contraction of these muscles will be done with EMG analysis and force gauge measurements.

After initial data collection participants will be randomized into either a closed kinetic chain exercise group or open kinetic chain exercise group. (described in the Arms section) Participants will exercise 2-3 times per week for 6 weeks. After the exercise program is completed, participants will then be seen back for final data collection which will match the initial collection process.

Connect with a study center

  • Alvernia University

    Reading, Pennsylvania 19607
    United States

    Active - Recruiting

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