Correlation between dynamic knee valgus and active hip external rotation in healthy active adults

Presentation Type

Abstract

Faculty Advisor

Luis Torres

Access Type

Event

Start Date

25-4-2025 9:00 AM

End Date

25-4-2025 9:59 AM

Description

Background: Dynamic knee valgus is defined as the inward collapse of the knee that often occurs during any squat movement. This has been identified as a risk factor for knee pain and may lead to various injuries in the knee. Active hip internal rotation and hip strength have been previously explored for connections to the occurrence of dynamic knee valgus; however, active hip external rotation has not been examined in contemporary literature. Purpose: The purpose of this study was to explore the relationship between dynamic knee valgus and active hip external rotation in healthy adults to better inform rehabilitative clinicians in their exercise programming. Methods: 19 active adults (6 males, 10 females, 19.32 1.25 years old) who are healthy were recruited for this study. Participants then completed a single-leg squat movement in front of a 3D motion capture camera which captured live range of motion (ROM) values of the knee. After completing the squat assessments, participants were instructed to lay down on a table to complete various repetitions of active hip internal and external rotation while a digital goniometer was strapped to their mid-femur allowing the live capture of ROM values of the hip. Results: As data collection is in progress, it is hypothesized that there will be a negative correlation between dynamic knee valgus and active hip external rotation. Conclusion: Establishing this correlation will give credence to the need to improve active external hip rotation in physical rehabilitation to limit dynamic knee valgus in physical activity.

Comments

Poster presentation at the 2025 Student Research Symposium.

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Apr 25th, 9:00 AM Apr 25th, 9:59 AM

Correlation between dynamic knee valgus and active hip external rotation in healthy active adults

Background: Dynamic knee valgus is defined as the inward collapse of the knee that often occurs during any squat movement. This has been identified as a risk factor for knee pain and may lead to various injuries in the knee. Active hip internal rotation and hip strength have been previously explored for connections to the occurrence of dynamic knee valgus; however, active hip external rotation has not been examined in contemporary literature. Purpose: The purpose of this study was to explore the relationship between dynamic knee valgus and active hip external rotation in healthy adults to better inform rehabilitative clinicians in their exercise programming. Methods: 19 active adults (6 males, 10 females, 19.32 1.25 years old) who are healthy were recruited for this study. Participants then completed a single-leg squat movement in front of a 3D motion capture camera which captured live range of motion (ROM) values of the knee. After completing the squat assessments, participants were instructed to lay down on a table to complete various repetitions of active hip internal and external rotation while a digital goniometer was strapped to their mid-femur allowing the live capture of ROM values of the hip. Results: As data collection is in progress, it is hypothesized that there will be a negative correlation between dynamic knee valgus and active hip external rotation. Conclusion: Establishing this correlation will give credence to the need to improve active external hip rotation in physical rehabilitation to limit dynamic knee valgus in physical activity.