Background

Emerging research has proposed a growing reliance on visual processing during motor performance in individuals following anterior cruciate ligament reconstruction. Reconstructed individuals display increased activation of visual processing areas during task execution and exhibit dramatic performance decrements when vision is completely removed, however the effect of visual information manipulation on performance remains unknown. The purpose of this study was to determine how manipulation of visual information changes performance in persons with anterior cruciate ligament reconstruction.

Methods

Twenty-one persons with anterior cruciate ligament reconstruction and 21 matched healthy adults reached to a target with the toe of the involved limb 50 times while wearing prism goggles that vertically shifted their visual field. Toe kinematics were collected to quantify endpoint error and reaching behavior.

Findings

Statistical analyses failed to detect significant differences, evidencing both groups performed similarly with respect to endpoint error, movement duration, peak and maximum endpoint velocities, and initial direction error.

Interpretation

When provided inaccurate information via a visual field perturbation, both groups demonstrated comparable adaptation and post-adaptation behavior. These results suggest this sample of persons with anterior cruciate ligament reconstruction are able to effectively integrate information across sensory systems as well as non-injured individuals.

中文翻译：

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下肢棱镜适应在前交叉韧带重建患者中的应用。

背景

新兴的研究提出，前十字韧带重建术后个体在运动表现过程中对视觉处理的依赖性越来越高。重建的个体在任务执行过程中显示出视觉处理区域的激活增加，并且在视觉被完全去除时表现出戏剧性的性能下降，但是视觉信息操纵对性能的影响仍然未知。这项研究的目的是确定视觉信息的操纵如何改变前交叉韧带重建患者的表现。

方法

21名前交叉韧带重建患者和21名相匹配的健康成年人戴上可垂直移动视野的棱形护目镜，用受累肢体的脚趾到达目标50次。收集脚趾运动学以量化终点误差和伸手行为。

发现

统计分析未能发现显着差异，证明两组在端点误差，运动持续时间，峰值和最大端点速度以及初始方向误差方面的表现相似。

解释

当通过视野扰动提供不准确的信息时，两组都显示出可比的适应性和适应后行为。这些结果表明，该样本的前交叉韧带重建患者能够有效整合整个感觉系统以及未受伤个体的信息。