Brunt D, Scarborough N
Texas Woman's University, Houston 77030.
Arch Phys Med Rehabil. 1988 Feb;69(2):115-7.
Temporal electromyographic (EMG) characteristics of lower limb muscles during gait of spastic hemiplegic and diplegic children with cerebral palsy are described. All subjects were referred for presurgical evaluation of equinovarus deformity. The data indicated both similar and discriminating phasic EMG characteristics between groups of patients. All children displayed premature triceps surae activity beginning in swing phase of gait and continuing through stance. Tibialis posterior, normally active during stance, was also active during swing phase of gait. However, some patients displayed cocontraction of triceps surae and tibialis anterior during stance, together with hamstring muscle activity within normal limits. The remainder of the patients displayed a prolonged duration of hamstring activity. How this gait analysis contributed to presurgical decisions for equinovarus gait is discussed and compared with data from postsurgical gait analysis.
描述了痉挛性偏瘫和双瘫型脑瘫儿童在步态中下肢肌肉的颞部肌电图（EMG）特征。所有受试者均因马蹄内翻畸形接受术前评估。数据表明两组患者之间存在相似和有区别的肌电相位特征。所有儿童在步态摆动期开始并持续到站立期均表现出比目鱼肌过早活动。正常情况下在站立期活跃的胫后肌在步态摆动期也活跃。然而，一些患者在站立期表现出比目鱼肌和胫前肌的共同收缩，同时腘绳肌活动在正常范围内。其余患者表现出腘绳肌活动持续时间延长。讨论了这种步态分析如何有助于马蹄内翻步态的术前决策，并与术后步态分析数据进行了比较。
