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Cueing Changes in Peak Vertical Ground Reaction Force to Improve Coordination Dynamics in Walking
Journal of Motor Behavior ( IF 1.4 ) Pub Date : 2021-06-20 , DOI: 10.1080/00222895.2021.1929810
Cortney Armitano-Lago 1 , Brian Pietrosimone 1 , Alyssa Evans-Pickett 1 , Hope Davis-Wilson 2 , Jason R Franz 3, 4 , Troy Blackburn 1 , Adam W Kiefer 1
Affiliation  

Abstracts

Biofeedback has been effectively implemented to improve the mediation and distribution of joint loads during gait, however, the inability to effectively coordinate lower limb movement by altering loading patterns may increase pathological stress and risk of injury and deleterious joint changes. This study examined the influence cueing an increase or decrease in lower extremity loading has on inter- and intralimb joint coordination during gait, applied herein for 12 persons following anterior cruciate ligament reconstruction across three loading conditions (control, high, and low). Visual biofeedback was presented on a screen via a force-measuring treadmill with targeted changes prescribed based on stride-to-stride peak vertical ground reaction forces bilaterally. The pattern and stability of coordination dynamics among each of the ankle, hip and knee joint pairs were assessed via discrete relative phase and cross-recurrence quantification analyses for each condition. High and low loading altered the pattern and stability of intralimb coordination; low loading led to decreased coordination stability (20° greater than control condition) and high loading resulted in a more tightly coupled coordination pattern (higher %CDET). With thoughtful consideration for movement control, biofeedback can be used to target mechanisms leading to long-term deleterious joint adaptations.



中文翻译:

提示峰值垂直地面反作用力的变化以改善步行中的协调动力学

文摘

生物反馈已被有效地实施以改善步态期间关节负荷的调节和分布,但是,无法通过改变负荷模式来有效协调下肢运动可能会增加病理压力和受伤风险以及有害的关节变化。这项研究检查了提示下肢负荷增加或减少对步态期间肢间和肢内关节协调的影响,本文适用于在三种负荷条件下(控制、高和低)进行前交叉韧带重建后的 12 人。视觉生物反馈通过力测量跑步机呈现在屏幕上,目标变化基于双侧步幅峰值垂直地面反作用力。每个脚踝之间协调动力学的模式和稳定性,通过针对每种情况的离散相对阶段和交叉复发量化分析评估髋关节和膝关节对。高负荷和低负荷改变了肢体协调的模式和稳定性;低负载导致协调稳定性降低(比控制条件大 20°),高负载导致更紧密耦合的协调模式(更高的 %CDET)。通过对运动控制的深思熟虑,生物反馈可用于靶向导致长期有害关节适应的机制。低负载导致协调稳定性降低(比控制条件大 20°),高负载导致更紧密耦合的协调模式(更高的 %CDET)。通过对运动控制的深思熟虑,生物反馈可用于靶向导致长期有害关节适应的机制。低负载导致协调稳定性降低(比控制条件大 20°),高负载导致更紧密耦合的协调模式(更高的 %CDET)。通过对运动控制的深思熟虑,生物反馈可用于针对导致长期有害关节适应的机制。

更新日期:2021-06-20
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