The Impact of Visual Perturbation Neuromuscular Training on Landing Mechanics and Neural Activity: A Pilot Study.
| Autor: | Wohl, Timothy R, Criss, Cody R, Haggerty, Adam L, Rush, Justin L, Simon, Janet E, Grooms, Dustin R |
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| Předmět: |
KNEE physiology
NEURAL physiology SPORTS injury prevention ANTERIOR cruciate ligament injury prevention MOTOR ability BIOMECHANICS EXERCISE physiology EFFECT sizes (Statistics) COGNITIVE testing TASK performance CLUSTER analysis (Statistics) RESEARCH funding OXYGEN T-test (Statistics) EXERCISE PLYOMETRICS FUNCTIONAL assessment PILOT projects FUNCTIONAL status PHYSICAL training & conditioning MAGNETIC resonance imaging HEMODYNAMICS DESCRIPTIVE statistics PRE-tests & post-tests DIGITAL video INTRACLASS correlation VISUAL perception JUMPING ATHLETIC ability BODY movement COMPARATIVE studies DATA analysis software CONFIDENCE intervals NEURODEVELOPMENTAL treatment MOTION capture (Human mechanics) RANGE of motion of joints RELAXATION for health POSTURAL balance |
| Zdroj: | International Journal of Sports Physical Therapy; 2024, Vol. 19 Issue 11, p1333-1347, 15p |
| Abstrakt: | Background: Athletes at risk for anterior cruciate ligament (ACL) injury have concurrent deficits in visuocognitive function and sensorimotor brain functional connectivity. Purpose: This study aimed to determine whether visual perturbation neuromuscular training (VPNT, using stroboscopic glasses and external visual focus feedback) increases physical and cognitive training demand, improves landing mechanics, and reduces neural activity for knee motor control. Design: Controlled laboratory study. Methods: Eight right leg dominant healthy female athletes (20.4±1.1yrs; 1.6±0.1m; 64.4±7.0kg) participated in four VPNT sessions. Before and after VPNT, real-time landing mechanics were assessed with the Landing Error Scoring System (LESS) and neural activity was assessed with functional magnetic resonance imaging during a unilateral right knee flexion/extension task. Physical and cognitive demand after each VPNT session was assessed with Borg's Rating of Perceived Exertion (RPE) for both physical and cognitive perceived exertion and the NASA Task Load Index. Descriptives and effect sizes were calculated. Results: Following VPNT, LESS scores decreased by 1.5 ± 1.69 errors with a large effect size (0.78), indicating improved mechanics, and reductions in BOLD signal were observed in two clusters: 1) left supramarginal gyrus, inferior parietal lobule, secondary somatosensory cortex (p=.012, z=4.5); 2) right superior frontal gyrus, supplementary motor cortex (p<.01, z=5.3). There was a moderate magnitude increase of cognitive RPE between the first and last VPNT sessions. Conclusion: VPNT provides a clinically feasible means to perturbate visual processing during training that improves athletes' real-time landing mechanics and promotes neural efficiency for lower extremity movement, providing the exploratory groundwork for future randomized controlled trials. Level of evidence: Level 3 [ABSTRACT FROM AUTHOR] |
| Databáze: | Supplemental Index |
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