What is it about?

This study objectively looked at muscle thickness using ultrasound imaging of the hip muscles during treadmill walking gait in healthy individuals and those exhibiting medial knee displacement (MKD) during a single leg squat, which is a risk factor for lower extremity injury. The results indicate that the MKD group had decreased gluteus maximus and medius thickness measures during heel strike and mid stance of gait, which reflects insufficient muscle activity during weight acceptance.

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Why is it important?

Ultrasound imaging provides a unique and clinically applicable way to look at muscle function during a functional, everyday task. By understanding muscle function throughout walking gait, especially in people exhibiting a risk factor, we can better appreciate differences in movement patterns and help to determine interventional opportunities. Ultrasound imaging overcomes limitations seen with other muscle measurement techniques, and has the potential for implementation in clinical practice.

Perspectives

This study is exciting because we were able to detect muscle differences even in a risk factor population. These findings set up for future investigations to see if muscle activity alterations persist or change in pathological populations.

Alexandra DeJong
University of Virginia

Read the Original

This page is a summary of: Detection of Gluteal Changes Using Ultrasound Imaging During Phases of Gait in Individuals With Medial Knee Displacement, Journal of Sport Rehabilitation, July 2019, Human Kinetics,
DOI: 10.1123/jsr.2017-0336.
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