POWER GRIP MOVEMENT AND EXTENSION-FLEXION MOVEMENT OF WRIST IN CEREBRAL PALSIED CHILDREN

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  • 脳性まひ児の把握運動と手関節屈伸運動に関する分析的研究
  • ノウセイ マヒジ ノ ハアク ウンドウ ト シュカンセツ クッシン ウンドウ

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Abstract

Upper extremity functions in cerebral palsied children are of great importance, and the subject has been studied by many researchers, occupational therapists and teachers in special schools for the physically handicapped. The purpose of this study was to investigate the skills of power grip movement and extension-flexion movement of the wrist in cerebral palsied children.The subjects in this study were in two groups. One consisted of 54 normal children ranging between 6:3 and 11:11 years of age. The other consisted of 71 cerebral palsied children ranging between 5:1 and 11:11 years of age, of 50 whom were spastic type and 21 were athetotic type children. The skill elements of power grip movement consisted of speed, timing, grip strength and pressure. The skill elements of extension-flexion movement of the wrist consisted of range of motion for extension, range of motion for flexion, speed, timing, total angle of wrist movement in ten seconds and angle of one wrist movement. In the skill elements of power grip movement and extension-flexion movement, the speed was indicated by the number of times rapid movements could be repeated in ten seconds, and the timing was indicated by the number of times movements conformed to ten rhythmical beats of a metronome.The results obtained were as follows: (1) In skill elements of power grip, cerebral palsied children were inferior to normal children, and the athetotic type was inferior to the spastic type in cerebral palsied children. (2) In skill elements of extension-flexion movement of the wrist, cerebral palsied children were poorer than normal children, and the athetotic type was poorer than the spastic type in cerebral palsied children. (3) Handedness skills were better than non-handedness skills in cerebral palsied children. (4) The wrist movement of cerebral palsied children was not so skillful as that of normal children. (5) The Intelligence Quotient was added to the 10 skill elements, and principal component analysis was applied to classify skill elements. The three principal components were extracted and interpreted as follows: 1) Regulation of speed and strength 2) Range of motion in wrist 3) Intelligence The factor loadings of skill elements were dotted on a figure with a lateral axis of the first principal component and a horizontal axis of the second principal component. Consequently, the skill elements were classified into two groups.

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