Riemann Bryan L, Myers Joseph B, Stone David A, Lephart Scott M
Neuromuscular Research Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA.
Med Sci Sports Exerc. 2004 Mar;36(3):388-96. doi: 10.1249/01.mss.0000117131.93989.9b.
This study was designed to determine, in isolation, the contribution of lateral ankle ligament mechanoreceptors to postural stability during single leg static (eyes open, eyes closed) and landing tasks.
Fourteen healthy subjects (nine males, five females) underwent two different treatment conditions (control, anesthesia) in a counterbalanced order (48-h interval). During the anesthetic treatment, lidocaine was injected into the anterior talofibular and calcaneofibular ligament (1.5 cc each) regions. Postural stability was measured using forceplate and kinematic variables. The average of each variable across multiple trials under each treatment for the three tasks was analyzed statistically.
Results of all statistical analyses failed to demonstrate significant alterations (P > 0.05) in postural control attributable to the treatment condition.
These results suggest that lateral ankle ligament mechanoreceptors either do not make a significant contribution to single leg stance stability, do not have a unique, irreplaceable role, or have a role that is too subtle to be detected given the measurement techniques used. Thus, the idea that single leg stability becomes altered after ankle joint injury because of proprioceptive disruption was not supported. This would suggest that reported postural control alterations in persons after repetitive ankle injury more likely occur as a result of alterations in mechanical stability, motor components, and/or central motor programming.
本研究旨在单独确定外侧踝关节韧带机械感受器在单腿静态（睁眼、闭眼）和着地任务期间对姿势稳定性的贡献。
14名健康受试者（9名男性，5名女性）以平衡顺序（间隔48小时）接受两种不同的治疗条件（对照、麻醉）。在麻醉治疗期间，将利多卡因注射到距腓前韧带和跟腓韧带区域（各1.5毫升）。使用测力板和运动学变量测量姿势稳定性。对三种任务在每种治疗下多次试验中每个变量的平均值进行统计分析。
所有统计分析结果均未显示出因治疗条件导致的姿势控制有显著改变（P>0.05）。
这些结果表明，外侧踝关节韧带机械感受器要么对单腿站立稳定性没有显著贡献，要么没有独特的、不可替代的作用，要么鉴于所使用的测量技术，其作用过于细微而无法检测到。因此，踝关节损伤后由于本体感觉破坏导致单腿稳定性改变的观点未得到支持。这表明，重复性踝关节损伤患者报告的姿势控制改变更可能是机械稳定性、运动成分和/或中枢运动编程改变的结果。
