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- W4242103487 abstract "The shift of equillibrium function of human body in regard to age is observed by accelerometer at the situations of the static and the passive posture.The series of subjects is classified into three groups, i. e. the adults ranging from 25 years Qld to 30 years old, the children ranging from 5 years old to 6 years old and the aged men ranging from 70 years old to 80 years old. In the study on the static posture, the sway of body is recorded by accelerometer and apparatus for the measurement of gravity, and in the study on the passive posture by movement, parallelswinger and goniometer are used.The results obtained are as follows:a. At the situation of static posture.1. The degree of head sway is highest at the children, relatively low at the aged men and lowest at the adults.On the other hand, the degree of hip sway is highest at the aged men, relatively high at the children and lowest at the adults.In regard to the center of the gravity, the adults are highest, the aged men are relatively high and the children are lowest in degree of the swaying.2. There is the close correlation between swaying of the center of gravity, and acceleration components of head and hip sway.In conclusion, the children have the tendency to stimulate the labyrinth and the proprioceptor in order to maintain their body equillibrium. On the other hand, the aged men seem to maintain their body equillibrium by avoiding the stimulation.b. At the situation of the passive posture.1. When the plane supporting the feet is tilted.At the children, the head is tilted towards the tilting direction of the plane, showing the higher degree of head sway.At the adults, contrary to the children, the direction of head tilting is opposite to the tilting direction of the plane, with the lower degree of sway.At the aged men, the head is tilted to the tilting direction of the plane, with the lowerr degree of sway, but they have the tendency to fall down easily even by the smaller tilting of the plane.2. When the body moves in parallelswing.At the beginning of parallelswing, the head is tilted to the opposite direction to the movement, in all cases of the adults, the children and the aged men. The degree of head tilting is highest at the children, next at the aged men and lowest at the adults.During the parallelswing, the adults take the same direction as the parallelswing in their head tilting. On the other hand, this is reversed at the children. The aged men take the midposition between the adults and the children.Considering of these results, though the adults are apt to maintain soon their body equillibrium from the head deviation caused by inertia at the beginning of parallelswing, the ability to maintain their body equillibrium is poorer in the passive movement at the children. On the other hand, the parallelswing brings equillibrium disorder to the aged men because of the rigidity of muscles and joints." @default.
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- W4242103487 date "1963-01-01" @default.
- W4242103487 modified "2023-09-25" @default.
- W4242103487 title "Experimental Studies on the Shift of Equillibrium Function in Regard to Age" @default.
- W4242103487 doi "https://doi.org/10.5631/jibirin.56.68" @default.
- W4242103487 hasPublicationYear "1963" @default.
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