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本实验应用kin-Com等速装置,通过对不同卧位、头的不同位置、关节不同功能位及手的摆放等形式以探讨测试体位的改变对等速力矩值的影响。36名男性成年人参加了本实验,并随机分为2组,在60°/sec角速度下进行了仰卧位、俯卧位髋伸;头正中位、同侧转动、对侧转动时髋屈、髋伸;髋屈90°、膝屈90°坐位、髋零位、膝屈90°仰卧位髋内、外旋及手抓测试平台两侧、手不抓测试平台两侧时髋屈90°、膝屈90°坐位髋外旋。结果表明:俯卧位髋伸主要由于该体位时髋伸肌处于较佳的长度而使力矩值显著地大于仰卧位髋伸力矩值。头部的转动造成机体紧张性反射而使髋屈力量大小依次为头转向对侧、头正中位、头转向同侧,髋伸力量大小依次为头转向同侧、头正中位、头转向对侧,但相互之间无显著性差异存在。髋屈90°、膝屈90°坐位时,髋内、外旋力量均比髋零位、膝屈90°仰卧位时要大,其中能内旋力量在两种体位下尚存有显著性差异,造成这一现象的主要原因为解剖方面的因素。手抓测试平台两边与否不致于产生髋外旋力量显著性的差异,其在稳定躯干、骨盆、大腿,使运动轴心相对恒定上有意义。离心收缩力量在测试体位改变时与向心收缩力量有相类似的表现。上述结果有益于等速测试和训?
In this experiment, the kin-Com isokinetic device was used to explore the effect of changing the test position on the isokinetic torque by different positions, different positions of the head, different functional positions of the joint and hand placement. Thirty-six male adults participated in the experiment and were randomly divided into 2 groups. Supine and prone position hip extension was performed at an angular velocity of 60 ° / sec. The head was median, rotated on the same side, Hip flexion 90 °, knee flexion 90 ° sitting, hip zero, knee flexion 90 ° supine position on both sides of the hip, external rotation and grasping the test platform, the hands do not grasp the test platform on both sides when the hip flexor 90 °, knee 90 ° flexion hip external rotation. The results show that: the prone position hip extension mainly due to the position of the hip extensor in a better length so that the torque value was significantly greater than the supine hip extension torque value. Head rotation caused by the body’s nervous reflex so that the amount of hip flexion strength in turn the head to the contralateral, head is the median, the head turned to the same side, the amount of hip extension strength followed by head to the ipsilateral, head is the median head to the contralateral , But no significant difference between each other exist. Hip flexion 90 °, knee flexion 90 ° sitting position, hip and external rotation force than the hip zero, knee flexion 90 ° supine position to be large, which can be the internal rotation power in two positions there is a significant difference , The main reason for this phenomenon is anatomical factors. Grasping the test platform on both sides or not will not result in a significant difference in hip external rotation force, which stabilizes the trunk, pelvis, thigh, the axis of motion makes a relatively constant sense. Centrifugal contractile force in the test position changes with the centripetal contractile force have a similar performance. The above results are conducive to constant speed testing and training?