Single-Leg Hop Stabilization Throughout Concussion Recovery: A Preliminary Biomechanical Assessment.
Context: Aberrant movement patterns among individuals with concussion history have been reported during sport-related movement. However, the acute postconcussion kinematic and kinetic biomechanical movement patterns during a rapid acceleration–deceleration task have not been profiled and leaves thei...
| Publicado en: | Journal of Sport Rehabilitation Vol. 32; no. 5; pp. 513 - 524 |
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| Autores principales: | , , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Human Kinetics Publishers, Inc.
Jul2023
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=164611517&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 164611517 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10566716 JSB jtl: Journal of Sport Rehabilitation issn: 10566716 maglogo: N pubinfo: dt: Jul2023 vid: 32 iid: 5 pid: 553 pub: Human Kinetics Publishers, Inc. place: Champaign, Illinois artinfo: ui: 164611517 164611517 164611517 10.1123/jsr.2022-0397 164611517 ppf: 513 ppct: 11 formats: tig: atl: Single-Leg Hop Stabilization Throughout Concussion Recovery: A Preliminary Biomechanical Assessment. aug: au: Lempke, Landon B. Hoch, Matthew C. Call, Jarrod A. Schmidt, Julianne D. Lynall, Robert C. affil: Department of Kinesiology, UGA Concussion Research Laboratory, University of Georgia, Athens, GA, USA sug: subj: Brain Concussion Therapy Recovery Kinetics Kinematics Hopping Task Performance and Analysis Human Prospective Studies Descriptive Statistics Data Analysis Software Confidence Intervals Analysis of Variance T-Tests Fisher's Exact Test Wilcoxon Rank Sum Test Post Hoc Analysis Case Control Studies Male Adult Young Adult Adult: 19-44 years Male ab: Context: Aberrant movement patterns among individuals with concussion history have been reported during sport-related movement. However, the acute postconcussion kinematic and kinetic biomechanical movement patterns during a rapid acceleration–deceleration task have not been profiled and leaves their progressive trajectory unknown. Our study aimed to examine single-leg hop stabilization kinematics and kinetics between concussed and healthy-matched controls acutely (≤7 d) and when asymptomatic (≤72 h of symptom resolution). Design: Prospective, cohort laboratory study. Methods: Ten concussed (60% male; 19.2 [0.9] y; 178.7 [14.0] cm; 71.3 [18.0] kg) and 10 matched controls (60% male; 19.5 [1.2] y; 176.1 [12.6] cm; 71.0 [17.0] kg) completed the single-leg hop stabilization task under single and dual task (subtracting by 6's or 7's) at both time points. Participants stood on a 30-cm tall box set 50% of their height behind force plates while in an athletic stance. A synchronized light was illuminated randomly, queuing participants to initiate the movement as rapidly as possible. Participants then jumped forward, landed on their nondominant leg, and were instructed to reach and maintain stabilization as fast as possible upon ground contact. We used 2 (group) × 2 (time) mixed-model analyses of variance to compare single-leg hop stabilization outcomes separately during single and dual task. Results: We observed a significant main group effect for single-task ankle plantarflexion moment, with greater normalized torque (mean difference = 0.03 N·m/body weight; P =.048, g = 1.18) for concussed individuals across time points. A significant interaction effect for single-task reaction time indicated that concussed individuals had slower performance acutely relative to asymptomatic (mean difference = 0.09 s; P =.015, g = 0.64), while control group performance was stable. No other main or interaction effects for single-leg hop stabilization task metrics were present during single and dual task (P ≥.051). Conclusions: Greater ankle plantarflexion torque coupled with slower reaction time may indicate stiff, conservative single-leg hop stabilization performance acutely following concussion. Our findings shed preliminary light on the recovery trajectories of biomechanical alterations following concussion and provide specific kinematic and kinetic focal points for future research. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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