1 急速な開口運動における胸鎖乳突筋の学習に関する研究(第514回 大阪歯科学会例会)

抄録

We investigated whether the onset of EMG activity in the sternocleidmastoid and digastric muscles improves with motor learning. Subjects were instructed to open their mouths as fast and as far as possible 30 times. We found that this resulted in the onset of activity of the sternocleidmastoid muscle preceding that of the digastric muscle. These results suggest that sternocleidmastoid muscle activity does not occur in response to a stretch reflex, but rather is the result of motor programming. This phenomenon seemed to occur by motor learning.