Misencoding of ankle joint angle control system via cutaneous afferents reflex pathway in chronic ankle instability
Misencoding of ankle joint angle control system via cutaneous afferents reflex pathway in chronic ankle instability
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慢性踝关节不稳定中通过皮肤传入反射通路的踝关节角度控制系统的错误编码
DOI：
10.1007/s00221-022-06406-7
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发表时间：
2022
影响因子：
2
通讯作者：
Komiyama Tomoyoshi
中科院分区：
文献类型：
--
作者：
Futatsubashi Genki;Sasada Syusaku;Ohtsuka Hiroyuki;Suzuki Shinya;Komiyama Tomoyoshi
本研究旨在探讨慢性踝关节不稳定（CAI）患者改变踝关节位置对腓骨长肌（PL）皮肤反射的影响。我们还研究了反射调节程度与踝关节角度位置感之间的关系。参与者为19例CAI患者和20例年龄匹配的对照组。在中立站立和外翻/倒置站立姿势下，对踝关节腓肠神经施加非有害电刺激，引起皮肤反射。观察中潜伏期皮肤反射抑制（MLR, ~ 70 ~ 120 ms）和踝关节角度位置感。在中立站立时，CAI患者的抑制MLR的增加比对照组更突出，尽管在30°倒置站立时没有发现显著差异。此外，CAI患者中性位抑制性MLR和背景肌电图的比例明显大于15°、25°和30°倒置位。在对照组中没有发现这种差异。此外，与对照组相比，CAI患者的反射调制度与位置感觉误差的相关性有很大差异。这些结果表明，CAI患者的感觉运动系统恶化是由于PL皮肤反射通路兴奋性和踝关节位置感觉的改变。
This study aimed to investigate how the cutaneous reflexes in the peroneus longus (PL) muscle are affected by changing the ankle joint position in patients with chronic ankle instability (CAI). We also investigated the correlation between the degree of reflex modulation and angle position sense of the ankle joint. The participants were 19 patients with CAI and 20 age-matched controls. Cutaneous reflexes were elicited by applying non-noxious electrical stimulation to the sural nerve at the ankle joint in the neutral standing and eversion/inversion standing positions. The suppressive middle latency cutaneous reflex (MLR; ~ 70–120 ms) and angle position sense of the ankle joint were assessed. During neutral standing, the gain of the suppressive MLR was more prominent in the CAI patients than in controls, although no significant difference was seen during 30° inversion standing. In addition, the ratios of the suppressive MLR and background electromyography in a neutral position were significantly larger than those at the 15°, 25°, and 30° inversion positions in CAI patients. No such difference was seen in control individuals. Furthermore, the correlations between reflex modulation degree and position sense error were quite different in CAI patients compared to controls. These findings suggest that the sensory-motor system was deteriorated in CAI patients due to changes in the PL cutaneous reflex pathway excitability and position sense of the ankle joint.
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作者：
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DOI：
10.1111/j.1600-0838.2004.00428.x
发表时间：
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影响因子：
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