In 61 patients with hemiplegia who under a rehabilitation program, the grade of gait disturbance of patient was examined by 6 physical therapists and 6 nurses, respectively. The examination consisted of observation on 46 kinds of gait or related actions; of which 14 were with a handrail, 16 with a cane and 16 with empty hands. Each rater was requested to rate the patient's performance without any mutual discussion but not practical, and practical from the standpoint of ADL(activities of living). The data collected in this way were analzyed by Hayashi's quantification method type III. Both 46 test items and 732 case-raters were arranged according to the similarity, and multidimensional mumerical values were assigned to them, respectively. On 2 dimensional plane spannde by the first 2 components, all 46 test items were plotted on a parabola and, therefore, could be rearranged one-dimensionally. It was suggested that the rank of this new arrangement roughly paralleled to that of the difficulty of the tests, and could be diverted to be utilized for the scaling of the latter. The result of the patient's actual response for the tests, justified the rank of severity proposed by us to be practically satisfactory.
This paper is concerned with the hierachical clustering algorithms. The first half part of this paper presents eight clustering algorithms using asymmetric similarity measures, and the graph-theoretic structure of clusters obtained by these clustering algorithms are described.The second half part of this paper presents a clustering algorithm for ordering items using homogeneity coeffcient as similarity measure, and compares it with other clustering algorithms.
Psychological problems inherent to physical activities and efforts have had much less prominence until the last few years. But the most recent decade has witnessed an increasing in problems concerning this field. The purpose of this work is to investigate of the age differences in the worker's activities of daily living from the view point of perceived exertion. The answers to the questions including about perceived exertions during daily activities, subjective symptoms of fatigue and aging, self perceptions of fitness and obesity rate etc. were collected from1, 801 male workers(including 952 job applicants)aged from 16 to 76 years. This data was analyzed by the quantification method by C. Hayashi and by the cluster analysis(weighted pair group method and re-arrangement method). Increasing in perceived exertion during daily activitieseems to appear on the surface at the age of 45-54 years and to become great from the age of 65-76 years. While sublective fatigue seems to decrease with advancing of age.