Does obesity influence foot structure and plantar pressure patterns in prepubescent children?
Does obesity influence foot structure and plantar pressure patterns in prepubescent children?
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DOI：
10.1038/sj.ijo.0801598
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发表时间：
2001-06-01
影响因子：
4.9
通讯作者：
Baur, LA
中科院分区：
文献类型：
--
作者：
Dowling, AM;Steele, JR;Baur, LA
目的：本研究旨在探讨肥胖对青春期前儿童足底压力分布的影响。设计：以现场为基础，以体重指数为实验数据收集13名肥胖儿童和13名非肥胖对照儿童的体重指数、足部结构和足底压力。（年龄8.1 ± 1.2岁; BMI 25.5 ± 2.9 kg/m2）和13名非肥胖（年龄8.4 ± 0.9岁; BMI 16.9 ± 1.2 kg/m2）的青春期前儿童，与肥胖儿童的性别、年龄和身高相匹配。使用脚踏描记器记录每个受试者的右脚和左脚的静态负重足迹，以计算足迹角和Chippaux-Smirak指数，作为与地面接触的足部表面积的代表性测量值。然后使用mini-emed（（R））压力平台获得左右足足底压力，以计算每个儿童的足部在静态和动态加载和卸载条件下所经历的力和压力。（t = 4.107; P = < 0.001）和更高的Chippaux-Smirak指数值（t = -6.176; P = < 0.001）。这些结构性足部变化与两个受试者组之间足底压力的差异有关。也就是说，尽管肥胖受试者产生的后足动态力显著高于非肥胖受试者产生的力，但这些力在与mini-emed（（R））系统接触的显著更高的平均峰值面积上经历。因此，两个受试者组的后足压力没有差异。然而，肥胖受试者产生的平均峰值动态前足压力（39.3 +/- 15.7 N.cm（-2）q = 3.969）显著高于非肥胖受试者产生的平均峰值动态前足压力（32.3 +/- 9.2 N.cm（-2））。结论：据推测，与足部不适相关的结构变化和肥胖足的前足足底压力增加可能会阻碍肥胖儿童参与体育活动，因此需要立即进行进一步研究。
OBJECTIVE: This study examined the effects of obesity on plantar pressure distributions in prepubescent children.DESIGN: Field-based, experimental data on BMI (body mass index), foot structure and plantar pressures were collected for 13 consenting obese children and 13 non-obese controls.SUBJECTS: Thirteen obese (age 8.1 +/- 1.2 y; BMI 25.5 +/- 2.9 kg/m(2)) and 13 non-obese (age 8.4 +/- 0.9 y; BMI 16.9 +/- 1.2 kg/m(2)) prepubescent children, matched to the obese children for gender, age and height.MEASUREMENTS: Height and weight were measured to calculate BMI. Static weight-bearing footprints for the right and left foot of each subject were recorded using a pedograph to calculate the footprint angle and the Chippaux-Smirak index as representative measures of the surface area of the foot in contact with the ground. Right and left foot plantar pressures were then obtained using a mini-emed((R)) pressure platform to calculate the force and pressure experienced under each child's foot during static and dynamic loaded and unloaded conditions.RESULTS: Obese subjects displayed significantly lower footprint angle (t = 4.107; P = < 0.001) values and higher Chippaux-Smirak index values (t = -6.176; P = < 0.001) compared to their non-obese counterparts. These structural foot changes were associated with differences in plantar pressures between the two subject groups. That is, although rearfoot dynamic forces generated by the obese subjects were significantly higher than those generated by the non-obese subjects, these forces were experienced over significantly higher mean peak areas of contact with the mini-emed((R)) system. Therefore, rearfoot pressures experienced by the two subject groups did not differ. However, the mean peak dynamic forefoot pressures generated by the obese subjects (39.3 +/- 15.7 N.cm(-2) q = 3.969) were significantly higher than those generated by the non-obese subjects (32.3 +/- 9.2 N.cm(-2)).CONCLUSIONS: It is postulated that foot discomfort-associated structural changes and increased forefoot plantar pressures in the obese foot may hinder obese children from participating in physical activity and therefore warrants immediate further investigation.