Anisotropy of the upper limbs movement in various motor function disorders

摘要

We examine anisotropy of the upper limb movement in patients with normal pressure hydrocephalus(NPH), apoplexy(apo), Parkinson's disease(PD), and spino-cerebellar degeneation(SCD) using a voluntary movement analysis system which we have developed. In NPH patient, "gap" parameter in x axis is larger than that in y axis. While, in APO and PD patients, that in x axis is larger than r axis. Also, in APO patient, sum of acceleration power spectrum in x axis is larger than that in y axis, but the alternative attend was appeared in PD and SCD patients. In "delay" parameter, NPH patient showed the superior x axis to y axis as compared with other disorders. It suggests that there are obvious anisotropies in some parameters of the upper limb movement and the pattern of anisotropies could be characterized by various motor function disorders.