ACTIVE AND PASSIVE EVALUATION OF PROPRIOCEPTION FOR THE SHOULDER AND KNEE

摘要

This paper utilizes a 2nd generation proprioception device to evaluate active and passive proprioception in the shoulder and knee. The device is developed for this study is designed to be portable, inexpensive and easy to use. Proprioception is the ability to know where a section of the body is in the absence of cues such as vision or feel Of particular interest clinically are the shoulder and knee. Normally, one is able to rotate these joints accurately in the absence of visual cues. This ability to know where the joint is rotationally and move it to a desired position is known to decay due to injury. The success of surgery and/or rehabilitation has been evaluated by monitoring proprioception. Proprioception is evaluated via a variety of means. Two techniques are threshold to detection (TTDPM) and position - reposition (RPP). TTDPM moves the joint passively, and the subject stops the test when motion is noted. RPP passively moves the joint to a position, returns to the initial position, and begins moving the joint a second time with the subject stopping motion when he/ she feels that the joint has rotated through the initial arc again. A variety of test modalities on the shoulder and knee have used these techniques. Both TTDPM and RPP begin with the subject isolated from external cues. This means that there must be no vibration or sound cues from the device. To assist in mis, the subject limb is isolated by a cushion from the rotation device and the subject wears headphones with music masking any sounds. If needed, vision is limited to the forward direction or blocked completely.