Dynamic-position-sense impairment's independence of perceived knee function in women with ACL reconstruction.
Dynamic-position-sense impairment's independence of perceived knee function in women with ACL reconstruction.
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DOI：
10.1123/jsr.21.1.44
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发表时间：
2012-02
影响因子：
1.7
通讯作者：
A. Littmann;Masaki Iguchi;S. Madhavan;Jamie L Kolarik;R. Shields
中科院分区：
文献类型：
--
作者：
A. Littmann;Masaki Iguchi;S. Madhavan;Jamie L Kolarik;R. Shields
关于前交叉韧带重建（ACLR）的女性是否表现出本体感觉受损，文献中存在相互矛盾的证据。本研究检查了有和没有长期ACLR的人之间的动态位置感准确性和中枢神经系统（CNS）处理时间。目的比较女性ACLR患者与健康人膝关节运动的本体感觉。设计横断面。单位：人类神经肌肉性能实验室。参与者：11名患有ACLR（术后1.6-5.8年）的女性（年龄22.64 ± 2.4岁）和20名未患有ACLR的女性（年龄24.05 ± 1.4岁）。干预：作者使用3种方法评估受试者的位置感。在以伪随机选择的速度（40°、60°、80°、90°和100°/s）进行膝关节屈曲期间，当受试者的膝关节达到预定目标角度（50°）时，受试者用他们的食指指示。准确度计算为错误评分。CNS处理时间使用检测运动的时间和角度指示的最小时间来计算。被动和主动关节位置的感觉也被确定在一个缓慢的速度（3°/s），从不同的膝关节开始的角度。主要结果测量：靶角的绝对和恒定误差、指示准确度、CNS处理时间和感知功能。结果：两组受试者在动态位置感测试中显示出相似的错误水平，尽管在感知膝关节功能方面存在持续差异。两组的估计CNS处理时间均为260 ms。在缓慢的主动或被动运动过程中，关节位置感在队列之间没有差异。结论：对照组和ACLR受试者表现出相似的动态、被动和主动关节位置感觉误差和CNS处理速度，尽管ACLR受试者报告功能受损更大。本体感觉的损害独立于ACLR后的功能感知。
CONTEXT There is conflicting evidence in the literature regarding whether women with anterior cruciate ligament reconstruction (ACLR) demonstrate impaired proprioception. This study examined dynamic-position-sense accuracy and central-nervous-system (CNS) processing time between those with and without long-term ACLR. OBJECTIVE To compare proprioception of knee movement in women with ACLR and healthy controls. DESIGN Cross-sectional. SETTING Human neuromuscular performance laboratory. PARTICIPANTS 11 women (age 22.64 ± 2.4 y) with ACLR (1.6-5.8 y postsurgery) and 20 women without (age 24.05 ± 1.4 y). INTERVENTIONS The authors evaluated subjects using 3 methods to assess position sense. During knee flexion at pseudorandomly selected speeds (40°, 60°, 80°, 90°, and 100°/s), subjects indicated with their index finger when their knee reached a predetermined target angle (50°). Accuracy was calculated as an error score. CNS processing time was computed using the time to detect movement and the minimum time of angle indication. Passive and active joint-position sense were also determined at a slow velocity (3°/s) from various knee-joint starting angles. MAIN OUTCOME MEASUREMENTS Absolute and constant error of target angle, indication accuracy, CNS processing time, and perceived function. RESULTS Both subject groups showed similar levels of error during dynamic-position-sense testing, despite continued differences in perceived knee function. Estimated CNS processing time was 260 ms for both groups. Joint-position sense during slow active or passive movement did not differ between cohorts. CONCLUSIONS Control and ACLR subjects demonstrated similar dynamic, passive, and active joint-position-sense error and CNS processing speed even though ACLR subjects reported greater impairment of function. The impairment of proprioception is independent of post-ACLR perception of function.