Mitoma H
Mitsubishi Kasei Institute of Life Sciences.
Nihon Rinsho. 1997 Jan;55(1):163-7.
To clarify characteristic pattern of parkinsonian gait, gait analysis was performed by measuring floor reaction forces, angular displacements, and surface electromyograms on patients with Parkinson's disease (PD) and normal controls. PD patients walked with slow speed, shortened stride, prolonged double support period, and restricted movement of the hip, knee, and ankle joints. Muscle activity of the gastrocnemius and tibialis anterior muscles reduced, and correspondingly pressures for step-in and kick-off decreased. These changes were correlated with severity of clinical scale. Despite these alterations, reciprocal activity of the distal antagonistic muscles was preserved. We conclude that these characteristic alterations reflect distorted mechanisms for gait control in PD and could be one of useful parameters for evaluation of pathophysiology of parkinsonian gait.
为了阐明帕金森步态的特征模式，通过测量帕金森病（PD）患者和正常对照者的地面反作用力、角位移和表面肌电图进行步态分析。PD患者行走速度慢、步幅缩短、双支撑期延长，髋、膝和踝关节活动受限。腓肠肌和胫前肌的肌肉活动减少，相应地，着地和蹬离时的压力降低。这些变化与临床量表的严重程度相关。尽管有这些改变，但远端拮抗肌的交互活动仍得以保留。我们得出结论，这些特征性改变反映了PD患者步态控制机制的扭曲，可能是评估帕金森步态病理生理学的有用参数之一。
