Hník P, Vejsada R, Kasicki S, Afelt Z
Physiol Bohemoslov. 1984;33(2):139-45.
Stretching the chronically deafferented soleus muscle has recently been found to inhibit spontaneous EMG activity recorded by silicone-plate electrodes in this muscle. In order to ascertain whether this stretch-induced inhibition (SII) of EMG activity is not restricted exclusively to the soleus, a study was made of SII in the gastrocnemius muscle employing either concentric EMG needles or bipolar "fish-hook" electrodes. The results showed that SII of spontaneous EMG activity can be demonstrated in the soleus and gastrocnemius muscles (both extensor muscles) several days after dorsal rhizotomy L1-S1, employing all three modes of EMG recording in awake rats (namely, silicone-plate electrodes, concentric electrodes and bipolar "fish-hook" electrodes). It is suggested that ventral root afferents may be involved in this phenomenon.
最近发现，拉伸长期去传入神经支配的比目鱼肌会抑制该肌肉中硅胶板电极记录到的自发电肌电图（EMG）活动。为了确定这种拉伸诱导的EMG活动抑制（SII）是否不仅限于比目鱼肌，我们使用同心EMG针电极或双极“鱼钩”电极对比目鱼肌中的SII进行了研究。结果表明，在L1-S1背根切断术后数天，在清醒大鼠中使用三种EMG记录模式（即硅胶板电极、同心电极和双极“鱼钩”电极），均可在比目鱼肌和腓肠肌（均为伸肌）中证明自发电肌电图活动的SII。提示腹根传入神经可能参与了这一现象。
