@article{oai:niigata-u.repo.nii.ac.jp:00022916, author = {岡田, 美保子}, issue = {5}, journal = {新潟医学会雑誌, 新潟医学会雑誌}, month = {May}, note = {A computer-based method for evaluating alternate pronation and supination of forearms (diadochokinesia test) has been developed. Forearm movements are converted into digital signals through a specially designed recording instrument. Tracings of movements are stored in a computer, and their rapidity and dexterity are quantified by ten parameters. An analysis was made by the method on the groups of healthy people and the patients with methylmercury poisoning, and significant differences were observed between the two groups. In all six parameters are defined as those related to dexterity. To establish a summary measure for dexterity, the principal component analysis was applied to the patient group, and the first principal component was adopted as the summary measure. The scores of the measure were compared with visual rankings given by five persons (four doctors and one secretary) for some sample tracings of movements, and close agreement was obtained between the measure and human judgment. As a final step of the study, a microcomputer-based device fully equipped to analyze diadochokinesia tests was implemented. The device has been made compact so that the test may be performed at the bedside and the tracings of the movements as well as the computed measurements are obtained immediately. The device will make the rapid quantitative analysis of diadochokinesia test possible in clinical practices.}, pages = {419--431}, title = {両手変換運動試験の客観的評価に関する研究}, volume = {103}, year = {1989} }