Hiraoka Koichi, Matuo Yoshimi, Iwata Akira, Onishi Tomoya, Abe Kazuo
Department of Physical Therapy, Osaka Prefecture University, 3-7-30, Habikino, Habikino city, 583-8555 Osaka, Japan.
Parkinsonism Relat Disord. 2006 Mar;12(2):97-102. doi: 10.1016/j.parkreldis.2005.07.006. Epub 2005 Oct 26.
The present study investigated the effects of external cues on motor control of the ankle joint during gait initiation in patients with Parkinson's disease (PD) and in age-matched healthy subjects. The soleus H-reflexes were recorded during self-generated and cue-triggered gait initiation. The tibialis anterior muscle burst during cue-triggered gait initiation was found to be significantly larger than that during self-generated gait initiation in both groups. External cues significantly increased soleus H-reflex depression during gait initiation in PD patients, although this significant increase was not present in healthy subjects. These findings indicate that external cues affect motor control of the extensor muscle of the ankle joint during gait initiation in PD patients.
本研究调查了外部线索对帕金森病（PD）患者和年龄匹配的健康受试者在步态起始过程中踝关节运动控制的影响。在自发和线索触发的步态起始过程中记录比目鱼肌H反射。结果发现，在两组中，线索触发的步态起始过程中胫骨前肌爆发均显著大于自发步态起始过程中的爆发。外部线索显著增加了PD患者步态起始过程中比目鱼肌H反射的抑制，尽管健康受试者中不存在这种显著增加。这些发现表明，外部线索会影响PD患者步态起始过程中踝关节伸肌的运动控制。
