幼児期の立位姿勢における静的平衡性について : 重心動揺・運動発達・足底面の関連性

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  • ヨウジキ ノ タチイ シセイ ニ オケル セイテキ ヘイコウセイ ニ ツイテ : ジュウシン ドウヨウ ・ ウンドウ ハッタツ ・ アシゾコメン ノ カンレンセイ
  • ヨウジキ ノ リツイ シセイ ニ オケル セイテキ ヘイコウセイ ニ ツイテ ジュウシン ドウヨウ ウンドウ ハッタツ ソクテイメン ノ カンレンセイ
  • Study on the Posture of Static Standing Balance in Infancy : Body Sway, Motor Development, Relevance of Foot Sole

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type:Departmental Bulletin Paper

The posture of dynamic standing balance wasanalyzed primarily on the center of pressure. Instabilometry, the center of gravity in standingposture is considered as the center of pressure,and it (stabilometry) analyzes the functions ofthe visual, vestibular semi circular canal, andpropriospinal reflex systems, and the centralnervous system, which controls the propriospinalsystem. We assessed the posture of static standing balance using Length (LNG), which is one of the indicators of body sway. We initially focused on the relevancy of static standing balance posture and motor development in 1038 children (boys and girls) aged 5. We hypothesized that stable standing posture in a basal plane and motor development is an effect of physical exertion-- in other words, stable static balance in a standing posture implies acquisition of motor development. Conclusions concerning the importance of physical exertion in childhood should be made by investigation of these bases. We divided all 1038 children into the following groups: Group 1 included those with the smallest LNG and a centre-of-gravity with the lowest instability, or the most stable centre-of-ravity; Group 2 included those who were moderately stable; group 3 included those with only slight stability; and group 4 comprised those who were unstable. From one legged stance testing, a significant difference was observed between thosewith a short distance in centre-of-gravity instability, and the most stable group and slightly stable group (p< 0.05 and p< 0.001, respectively). In addition, in the one legged continuous hopping test, the length of instability in the center of gravity (LNG) was short, and it was suggested that the group having a short LNG and with excellent static balance is also superior in motor development of a one-legged jump. Additionally, the same result as the one legged stance was observed for repeated horizontal jump tests when comparing the stable group, who possessed excellent static balance, with the unstable group. These results appear to show that muscular contraction through physical exertion stimulates the nerves and influences static balance in the static standing posture. The relationship between LNG and the arch of foot area was recognized as r=-0.10. Correlation between the arch of the foot area and the 25m run was noted as r=-0.13 (p<0.01). The observed results are likely due to stimulation through physical exercise resulting in improved toe function, primarily in the metatarsophalangeal joint of the foot base.

identifier:彦根論叢, 第391号, pp. 18-49

identifier:The Hikone Ronso, No.391, pp. 18-49

収録刊行物

  • 彦根論叢

    彦根論叢 第391号 18-49, 2012-03

    滋賀大学経済学会

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