Abstract:

BACKGROUND: Three-dimensional kinematic analysis can be used to obtain various biomechanical parameters in walking, which represents advanced level of gait biomechanics. This technique is not mature in domestic application. Current domestic studies mainly focus on analysis of sagittal plane of hemiplegia lower limb. 
OBJECTIVE: To explore the characters of the stroke hemiplegia gait using three-dimensional kinematic analysis.
METHODS: The 10 hemiplegia gait patients and 10 normal gait volunteers as control were subjected to gait analysis using three-dimensional kinematic analysis system. The basic time-space parameter, gait cycle parameter and pelvis three-dimensional motion angle of normal controls, and the symmetry during motion were analyzed. The three-dimensional motion angle parameters of hip, knee and ankle of two groups were analyzed. The hemiplegia gait character of the lower limb in sagital plane, transverse plane and frontal plane of two groups was compared.
RESULTS AND CONCLUSION: The hemiplegia gait manifested as follows: The knee flexion and range of motion were restricted; the hip adduction restricted, abduction and external rotation became larger. The motion analysis system can evaluate hemiplegic gait, quantitatively evaluate the lower limb motion changes, thereby providing the availability information in rehabilitation