著者

小林 芳文 松瀬 三千代

出版者

横浜国立大学

雑誌

横浜国立大学教育紀要 (ISSN:05135656)

巻号頁・発行日

vol.24, pp.147-164, 1984-10-30

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The purpose of this study was to investigate the balancing ability of the mentally retarded children (ages from six to eighteen) based upon the data on gravity change referring at the same time to their bilateral motor ability. The results were as follows; (1) On standing balance with both leges, the gravity change of mentally retarded differed from age to age in a great deal and instability was the gravity change tended to be smaller and became stable after the age sixteen (2) Many of the mentally retarded children showed difficulty in standing on one foot balance and therefore, gravity change was large and unstable. (3) It was observed that the mentally retarded children were inferior in gross and fine bilateral motor abilities. (4) Those mentally retarded children with less gross and fine bilateral motor abilities were observed to show more gravity imbalance on standing balance and to have greater difficulty to stand on one foot balance. From the above observation, the gravity change, which is one of the balancing abilities, was assumed to be closely correlated to bilateral motor ability.