DETECTIONS OF MOVEMENTS IMPOSED ON FINGER, ELBOW AND SHOULDER JOINTS
DETECTIONS OF MOVEMENTS IMPOSED ON FINGER, ELBOW AND SHOULDER JOINTS
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DOI：
10.1113/jphysiol.1983.sp014548
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发表时间：
1983-01-01
影响因子：
5.5
通讯作者：
MCCLOSKEY, DI
中科院分区：
文献类型：
--
作者：
HALL, LA;MCCLOSKEY, DI
70%的正确检测所需的角位移在正常的[人类]受试者的肩关节和肘关节，并在中指的终端关节。位移的角速度在0.125 °之间。和160 °/ s进行了测试。在正常偏移的中间范围内对每个接头进行测试。关节被小心地支撑以进行测试，并且在关节处起作用的肌肉被放松。在角位移和角速度方面进行评估时，肩关节和肘关节的本体感受性能上级指关节。在10 °-15 °的角速度范围内，在指状关节处获得最佳性能。80.degree./ S.两个更近端关节处的最佳性能在更宽的范围（2.0 °-2.5 °）内是最佳的。80.degree./ s）。主动指向运动的视觉的移动部分进行了在每个关节的速度范围内的最佳本体感受性能。当检测水平和位移速度表示的线性位移和速度在指尖的所有3个关节，手指关节给出了最好的性能和肩关节最差。因此，如果给定线性范围的位移移动远侧关节，则它们被最好地检测到，如果它们移动近侧关节，则它们被最差地检测到。对于手肘关节和手指关节，检测水平和速度数据也表示在这些关节处操作的肌肉长度的成比例变化方面，并作为关节囊的附着点之间的距离的成比例变化。肌肉长度的比例变化方面的分析表明，在两个关节显着相似的性能水平。肌内受体显然是本体感受性能的重要决定因素。关节囊移位方面的分析没有统一数据：在这种形式的分析中，手肘关节的本体感觉性能是上级的。
The angular displacements necessary for 70% correct detection were determined in normal [human] subjects at the shoulder and elbow joints and at the terminal joint of the middle finger. Angular velocities of displacement between 0.125.degree. and 160.degree./s were tested. Each joint was tested in the mid-range of its normal excursion. The joints were carefully supported for testing, and the muscles acting at the joints were relaxed. When assessed in terms of angular displacements and angular velocities, proprioceptive performance at the shoulder and elbow joints was superior to that at the finger joint. Optimal performance at the finger joint was attained over the range of angular velocities from 10.degree.-80.degree./s. Opitmal performance at both more proximal joints was optimal over a wider range (2.degree.-80.degree./s). Active pointing movements made without vision of the moving part were performed at each joint at velocities within the range of optimal proprioceptive performance. When detection levels and displacement velocities were expressed in terms of linear displacements and velocities at the finger tip for all 3 joints, the finger joint gave the best performance and the shoulder the worst. Therefore, displacements of a given linear extent are best detected if they move distal joints and worst if they move proximal joints. For the elbow and finger joints, the detection level and velocity data were expressed also in terms of proportional changes in the lengths of muscles operating at these joints and as proportional changes in the distance between the points of attachment of the joint capsules. Analysis in terms of proportional changes of muscle length showed remarkably similar performance levels at both joints. Intramuscular receptors apparently are important determinants of proprioceptive performance. Analysis in terms of joint capsular displacement did not unify the data: on this form of analysis, proprioceptive performance at the elbow joint was superior.