DETECTION OF MOVEMENTS IMPOSED ON HUMAN HIP, KNEE, ANKLE AND TOE JOINTS
DETECTION OF MOVEMENTS IMPOSED ON HUMAN HIP, KNEE, ANKLE AND TOE JOINTS
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DOI：
10.1113/jphysiol.1995.sp020961
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发表时间：
1995-10-01
影响因子：
5.5
通讯作者：
MCCLOSKEY, DI
中科院分区：
文献类型：
--
作者：
REFSHAUGE, KM;CHAN, R;MCCLOSKEY, DI
1. 在正常受试者的髋关节、膝关节、踝关节和大脚趾指间关节处测定70%正确检测所需的角位移。测试了0.1到50度（-1）之间的角速度。髋关节和膝关节在轻微屈曲时进行测试，踝关节和脚趾关节在正常偏移的中间范围内进行测试。仔细支撑关节进行测试，放松关节处的肌肉。当以角位移和角速度来评估检测阈值和速度时，髋关节、膝关节和踝关节的本体感觉表现优于脚趾关节。当检测水平和位移速度以所有四个关节的线性位移和扩展脚趾尖的速度来表示时，而不是以角度来表示，踝关节的表现最好，髋关节和膝关节最差。检测水平和速度数据也以操作这些关节的肌肉束长度的比例变化来表示。这些方面的分析表明，髋关节、膝关节和踝关节的表现是相似的，但脚趾的表现比其他关节差得多。这些髋关节、膝关节和踝关节的结果与之前肘关节和手指远端指间关节的测量结果相似，并且与肌束长度是中枢神经系统重要变量的理论一致。然而，根据这一变量，大脚趾的本体感觉表现明显比所有其他关节差。
1. The angular displacements necessary for 70% correct detection were determined in normal subjects at the hip, knee and ankle joints, and the interphalangeal joint of the big toe. Angular velocities between 0.1 and 50 deg s(-1) were tested. The hip and knee joints were tested in slight flexion and the ankle and toe joints were tested in the mid-range of the normal excursion. The joints were carefully supported for testing and the muscles acting at the joints were relaxed.2. When detection thresholds and velocities were assessed in terms of angular displacements and angular velocities, proprioceptive performances at the hip, knee and ankle joints were superior to that at the toe joint.3. When detection levels and displacement velocities were expressed in terms of linear displacements and velocities at the tip of the extended toe for all four joints, instead of in angular terms, the ankle gave the best performance and the hip and knee the worst.4. The detection level and velocity data were expressed also in terms of proportional changes in the fascicle lengths of muscles operating these joints. Analysis in these terms showed that performance was similar at the hip, knee and ankle joints, but that performance for the toe was much poorer than for the other joints.5. These results for the hip, knee and ankle are similar to those previously measured for the elbow and distal interphlangeal joint of the finger, and are consistent with the theory that muscle fascicle length is the variable of significance to the central nervous system. However, the proprioceptive performance at the big toe is notably poorer than all other joints studied and analysed in terms of this variable.