Cognitive Load Influences Drop Jump Landing Mechanics During Cognitive-Motor-Simulated Shooting
| Autor: | Gillian McCarren, Meredith Chaput, Dustin R Grooms, Cody R Criss, Sean Buckley, Philip Brazalovich, Jae Yom, Janet E Simon |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Military Medicine. |
| ISSN: | 1930-613X 0026-4075 |
| DOI: | 10.1093/milmed/usad003 |
| Popis: | Introduction Military duties require immense cognitive-motor multitasks that may predispose soldiers to musculoskeletal injury. Most cognitive challenges performed in the research laboratory are not tactical athlete specific, limiting generalizability and transferability to in-field scenarios. The purpose of this study was to determine the impact of a cognitive-motor multitask (forward drop jump landing while simultaneously performing simulated shooting) on knee kinetics and kinematics. Methods Twenty-four healthy collegiate Reserve Officer’s Training Corps members (18 males and 6 females, 20.42 ± 1.28 years, 174.54 ± 10.69 cm, 78.11 ± 14.96 kg) volunteered, and knee kinetics and kinematics were assessed between baseline and cognitive-loaded conditions. Repeated measures ANOVAs were conducted for each dependent variable with the within-subject factor of condition (baseline vs. cognitive load). Results Univariate ANOVAs indicated that knee flexion angle at initial contact (IC) (decreased 6.07°; d = 3.14), knee flexion displacement (increased 6.78°; d = 1.30), knee abduction angle at IC (increased 2.3°; d = 1.46), peak knee abduction angle (increased 3.04°; d = 0.77), and peak vertical ground reaction force (increased 0.81 N/kg; d = 2.13) were significant between conditions (P .05). Conclusions Cognitive challenge induced knee landing biomechanics commonly associated with injury risk. Injury risk screening or return-to-training or duty assessments in military personnel might consider both baseline and cognitive conditions. |
| Databáze: | OpenAIRE |
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