Bovonsunthonchai Sunee, Hiengkaew Vimonwan, Vachalathiti Roongtiwa, Vongsirinavarat Mantana
Faculty of Physical Therapy, Mahidol University, Salaya, Nakhon Pathom, Thailand.
J Med Assoc Thai. 2011 Apr;94(4):476-84.
To investigate asymmetrical gait characteristics and degree of associations between gait symmetrical indexes and clinical measures in a stroke population.
Thirty patients with stroke participated in the present study. Clinical measures included muscle tone of affected hip adductors (HA), hip extensors (HE), knee extensors (KE), ankle plantar flexors (AP) and ankle invertors (AI), lower extremity function and postural balance. Symmetrical indexes of gait biomechanics included braking peak force (Y1), propulsive peak force (Y2), first peak vertical force (Z1) and second peak vertical force (Z2), step length, single support time (SST), step time, stance time and swing time were determined.
The symmetrical index of force was significantly related with muscle tone and lower extremity function. Temporospatial variables significantly related to muscle tone and lower extremity function, but not to postural balance.
Muscle tone and lower extremity function were important for walking efficiency as the presented relationships with symmetrical gait characteristic in patients with a stroke.
研究中风人群的不对称步态特征以及步态对称指数与临床指标之间的关联程度。
30例中风患者参与了本研究。临床指标包括患侧髋内收肌（HA）、髋伸肌（HE）、膝伸肌（KE）、踝跖屈肌（AP）和踝内翻肌（AI）的肌张力、下肢功能和姿势平衡。测定步态生物力学的对称指数，包括制动峰值力（Y1）、推进峰值力（Y2）、第一峰值垂直力（Z1）和第二峰值垂直力（Z2）、步长、单支撑时间（SST）、步时、站立时间和摆动时间。
力的对称指数与肌张力和下肢功能显著相关。时空变量与肌张力和下肢功能显著相关，但与姿势平衡无关。
肌张力和下肢功能对步行效率很重要，因为它们与中风患者的对称步态特征存在上述关系。
