Feuerbach J W, Grabiner M D, Koh T J, Weiker G G
Department of Biomedical Engineering, Cleveland Clinic Foundation, OH 44195.
Am J Sports Med. 1994 Mar-Apr;22(2):223-9. doi: 10.1177/036354659402200212.
The purposes of this study were to determine the effect of a rigid ankle orthosis (Aircast Air-Stirrup) and lateral ankle ligament anesthesia on ankle joint proprioception. Twelve noninjured subjects attempted to match nine reference ankle joint positions with their eyes closed before and after application of the ankle brace and before and after one or two of the lateral ankle ligaments (anterior talofibular and calcaneofibular) were anesthetized. Three-dimensional ankle joint orientations were recorded with a Motion Analysis system. No significant differences in the constant, variable, or absolute error were seen between subjects in the non-anesthetized and anesthetized conditions (P > 0.05), regardless of whether one or two ligaments were anesthetized. Thus, it appears that ligament mechanoreceptors contributed little to ankle joint proprioception, and that the afferent feedback from skin, muscle, and other joint receptors was adequate for the positioning task of the present study. Both the variable and absolute error in matching the reference positions were significantly less with the orthosis than without (P < 0.05). Application of an orthosis may increase the afferent feedback from cutaneous receptors in the foot and shank, which may in turn lead to an improved ankle joint position sense.
本研究的目的是确定刚性踝关节矫形器（Aircast Air-Stirrup）和外侧踝关节韧带麻醉对踝关节本体感觉的影响。12名未受伤的受试者在佩戴踝关节支具前后以及外侧踝关节韧带（距腓前韧带和跟腓韧带）中的一条或两条被麻醉前后，尝试在闭眼状态下匹配9个参考踝关节位置。使用运动分析系统记录三维踝关节方向。无论麻醉一条还是两条韧带，在未麻醉和麻醉状态下的受试者之间，恒定误差、可变误差或绝对误差均无显著差异（P>0.05）。因此，似乎韧带机械感受器对踝关节本体感觉的贡献很小，并且来自皮肤、肌肉和其他关节感受器的传入反馈足以完成本研究的定位任务。与不使用矫形器相比，使用矫形器时匹配参考位置的可变误差和绝对误差均显著更小（P<0.05）。应用矫形器可能会增加来自足部和小腿皮肤感受器的传入反馈，这反过来可能会改善踝关节位置觉。
