EFFECT OF FATIGUE ON JOINT POSITION SENSE OF THE KNEE
EFFECT OF FATIGUE ON JOINT POSITION SENSE OF THE KNEE
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DOI：
10.1002/jor.1100040115
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发表时间：
1986-01-01
影响因子：
2.8
通讯作者：
BARRACK, RL
中科院分区：
文献类型：
--
作者：
SKINNER, HB;WYATT, MP;BARRACK, RL
本研究旨在测试膝关节在疲劳前后的位置感，以确定肌肉或关节囊感受器是否是关节位置感的主要传感器。被动定位的再现和运动开始的检测（动觉）被用来测量关节位置感。11名受试者在疲劳协议之前和之后进行了关节位置感测量。疲劳后膝关节角度的再现明显恶化（p < 0.05）。阈值（动觉）在疲劳后无统计学显著变化。疲劳前生殖测量值和阈值测量值的显著相关性（p < 0.01）表明，相同的神经机制适用于休息状态，但疲劳后这些变量没有显著相关性。有一个显着的相关性之间的再现测量之前和之后的疲劳（p = 0.018），而没有相关性被视为前和疲劳后的阈值测量，这表明疲劳后的神经路径的变化。由于这两个测试的关节位置感疲劳的影响，我们得出结论，肌肉受体是一个突出的，如果不是主要的，关节位置感的决定因素，和囊受体可能有次要的作用。生殖能力下降，可能是由于肌肉受体效率的丧失。阈值数据表明，疲劳后的升值机制的变化，可能是由于从肌肉疲劳引起的松弛囊受体的敏感性增加。
This study was designed to test position sense of the knee joint before and after fatigue in order to determine whether muscle or capsular receptors are the primary sensors for joint position sense. Reproduction of passive positioning and detection of the onset of motion (kinesthesia) were employed to measure joint position sense. Eleven subjects underwent joint position sense measurement before and after a fatigue protocol. A significant worsening of reproduction of knee joint angle after fatigue was noted (p < 0.05). Threshold (kinesthesia) showed no statistically significant change after fatigue. A significant correlation of reproduction measurements and threshold measurements prior to fatigue (p < 0.01) demonstrated that the same neural mechanism is applicable in the rested state, but these variables did not correlate significantly after fatigue. There was a significant correlation between reproduction measurements before and after fatigue (p = 0.018), while no correlation was seen for the pre- and postfatigue threshold measurements, suggesting a change in the neural path after fatigue. Since both tests of joint position sense are affected by fatigue, we conclude that muscle receptors are a prominent, if not primary, determinant of joint position sense, and capsular receptors may have a secondary role. Reproduction ability is decreased, presumably through the loss of efficiency of muscle receptors. The threshold data suggest a change in the mechanism of appreciation after fatigue, possibly due to increased sensitivity of capsular receptors from muscle-fatigue-induced laxity.