Usui N, Maekawa K, Hirasawa Y
Department of Physiology, Jikei University School of Medicine, Tokyo, Japan.
Dev Med Child Neurol. 1995 Nov;37(11):985-96. doi: 10.1111/j.1469-8749.1995.tb11953.x.
From 1988 to 1992, 1188 children (576 boys and 612 girls) three to 11 years old were studied using the Stasio-analyzer to clarify developmental change of upright postural sway. Developmental change in the contact surface area of the sole, the coefficient of variation for the contact surface area, total sway area, total sway path and position of the centre of gravity were analysed. The contact surface area increased markedly between the ages of three to five and of seven to nine years, and increased slightly between six and seven years. Age six to seven years is proposed as a turning point of plantar arch formation as regards change in the contact surface area of the sole. Upright postural sway decreased markedly between the ages of three to five years and then slowly after age six. Boys under ten years swayed more than girls. The centre of gravity of the foot in children standing upright shifted towards the toes with increasing age: its distance from the heel was about 36 per cent of the foot length at age three to five years and 42 per cent at 11 years.
1988年至1992年期间，对1188名3至11岁的儿童（576名男孩和612名女孩）进行了研究，使用Stasio分析仪来阐明直立姿势摆动的发育变化。分析了脚底接触面积、接触面积变异系数、总摆动面积、总摆动路径和重心位置的发育变化。接触面积在3至5岁和7至9岁之间显著增加，在6至7岁之间略有增加。就脚底接触面积的变化而言，6至7岁被认为是足弓形成的转折点。直立姿势摆动在3至5岁之间显著减少，6岁以后则缓慢减少。10岁以下的男孩比女孩摆动得更多。直立儿童的脚底重心随着年龄的增长向脚趾方向移动：3至5岁时，其距脚跟的距离约为脚长的36%，11岁时为42%。
