Biomechanics Research Laboratory, School of Health Sciences, University of Wollongong, Wollongong, NSW, Australia.
Int J Obes (Lond). 2011 Jan;35(1):115-20. doi: 10.1038/ijo.2010.119. Epub 2010 Jun 22.
There is debate as to the effects of obesity on the developing feet of children. We aimed to determine whether the flatter foot structure characteristic of obese primary school-aged children was due to increased medial midfoot plantar fat pad thickness (fat feet) or due to structural lowering of the longitudinal arch (flat feet).
Participants were 75 obese children (8.3 ± 1.1 years, 26 boys, BMI 25.2 ± 3.6 kg m(-2)) and 75 age- and sex-matched non-obese children (8.3 ± 0.9 years, BMI 15.9 ± 1.4 kg m(-2)). Height, weight and foot dimensions were measured with standard instrumentation. Medial midfoot plantar fat pad thickness and internal arch height were quantified using ultrasonography.
Obese children had significantly greater medial midfoot fat pad thickness relative to the leaner children during both non-weight bearing (5.4 and 4.6 mm, respectively; P<0.001) and weight bearing (4.7 and 4.3 mm, respectively; P < 0.001). The obese children also displayed a lowered medial longitudinal arch height when compared to their leaner counterparts (23.5 and 24.5 mm, respectively; P = 0.006).
Obese children had significantly fatter and flatter feet compared to normal weight children. The functional and clinical relevance of the increased fatness and flatness values for the obese children remains unknown.
肥胖对儿童发育期足部的影响存在争议。我们旨在确定肥胖小学生足部结构扁平是否是由于内侧中足部足底脂肪垫厚度增加（脂肪足），还是由于纵弓结构降低（扁平足）。
参与者为 75 名肥胖儿童（8.3±1.1 岁，26 名男孩，BMI 25.2±3.6 kg m(-2)) 和 75 名年龄和性别匹配的非肥胖儿童（8.3±0.9 岁，BMI 15.9±1.4 kg m(-2))。使用标准仪器测量身高、体重和足部尺寸。使用超声检查定量测量内侧中足部足底脂肪垫厚度和内弓高度。
肥胖儿童在非负重（分别为 5.4 和 4.6 毫米，P<0.001）和负重（分别为 4.7 和 4.3 毫米，P<0.001）时，其内侧中足部脂肪垫厚度明显大于较瘦的儿童。与较瘦的同龄人相比，肥胖儿童的内侧纵弓高度也降低（分别为 23.5 和 24.5 毫米，P = 0.006）。
与正常体重儿童相比，肥胖儿童的足部明显更胖且更扁平。肥胖儿童脂肪增加和扁平程度的功能和临床相关性尚不清楚。
