• Neuroscience · Oct 2024

    Differential neural mechanisms for movement adaptations following neuromuscular training in young female athletes with a history of sports-related concussion.

    • Taylor M Zuleger, Alexis B Slutsky-Ganesh, HoWon Kim, Manish Anand, Shayla M Warren, Dustin R Grooms, Weihong Yuan, Michael A Riley, Russell K Gore, Gregory D Myer, and Jed A Diekfuss.
    • Emory Sports Performance And Research Center (SPARC), Flowery Branch, GA, USA; Emory Sports Medicine Center, Atlanta, GA, USA; Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA, USA; Neuroscience Graduate Program, University of Cincinnati, Cincinnati, OH, USA. Electronic address: Taylor.zuleger@emory.edu.
    • Neuroscience. 2024 Oct 18; 558: 708070-80.

    AbstractSports-related concussion (SRC) in adolescent athletes is associated with an increased risk of subsequent lower extremity injury. Neuromuscular training (NMT) has shown promise for reducing lower extremity injuries following SRC, however, neural adaptations in response to changes in lower extremity biomechanics following NMT in athletes with a history of SRC (HxSRC) remains poorly understood. Therefore, the purpose of this study was to identify changes in neural activity associated with lower extremity movement adaptations following a six-week NMT intervention in athletes with a HxSRC. Thirty-two right-hand/foot-dominant female adolescent athletes (16 with self-reported HxSRC, 16 age- and anthropometrically-matched controls) completed a bilateral leg press task with 3D motion analysis during functional magnetic resonance imaging (fMRI). Movement adaptations were defined as a change in frontal and sagittal plane range of motion (ROM) during the fMRI bilateral leg press task. Significant pre- to post-NMT reductions were observed in the non-dominant (left) mean frontal plane ROM. Whole-brain neural correlate analysis revealed that increased cerebellar activity was significantly associated with reduced mean left-knee frontal ROM for matched controls. Exploratory within group analyses identified neural correlates in the postcentral gyrus for the HxSRC group which was associated with reduced mean left-knee frontal plane ROM. These distinct longitudinal changes provide preliminary evidence of differential neural activity associated with NMT to support knee frontal plane control in athletes with and without a HxSRC.Copyright © 2024 International Brain Research Organization (IBRO). Published by Elsevier Inc. All rights reserved.

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