MEG measured delta waves increase in adolescents after concussion
Elizabeth M Davenport1,2, Jillian E Urban3,4, Christopher Vaughan5
1Advanced Neuroscience Imaging Research (ANSIR) Laboratory, University of Texas Southwestern Medical Center, Dallas, Texas.
Sports concussions in adolescents significantly increase delta wave power, as measured by magnetoencephalography (MEG). This finding highlights potential biomarkers for concussion assessment in young athletes.
Area of Science:
- Neuroscience
- Sports Medicine
- Biomarkers
Background:
- Concussions are common in adolescent athletes.
- Understanding the neurophysiological effects of concussion is crucial for diagnosis and management.
- Delta wave activity is a potential indicator of brain changes.
Purpose of the Study:
- To investigate if sports concussions increase delta wave power in adolescents.
- To utilize magnetoencephalography (MEG) for measuring brain activity.
Main Methods:
- Twenty-four adolescents (14-17 years) underwent pre- and postseason MRI and MEG scans.
- MEG delta power was calculated and normalized.
- Compared postseason delta power in concussed athletes, non-concussed athletes, and controls.
Main Results:
- Adolescents with concussions showed significantly increased delta wave power post-injury compared to non-concussed players (p=0.018) and controls (p=0.027).
Conclusions:
- A single sports concussion can elevate delta frequency power in adolescents.
- Increased delta power post-concussion is a consistent finding in scientific literature.
- MEG-measured delta power may serve as a biomarker for concussion in adolescents.
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