摘要
背景:背包行走是儿童常见的活动。过重的书包会对儿童下肢及足部造成不利的影响,从而影响儿童的发育。目的:探讨肥胖对儿童背包行走时步态特征的影响。方法:应用体质量指数法并参考中国学龄儿童青少年超重、肥胖筛查体质量指数标准,对儿童进行选择。纳入40名小学生作为观察对象,其中20名肥胖儿童,体质量指数(28.13±3.4)kg/m^2;20名非肥胖儿童,体质量指数(17.44±1.57)kg/m^2。应用比利时RSscan International公司的2 m footscan足底压力平板测试系统对儿童在背包行走时的步态进行测试。结果与结论:(1)与非肥胖儿童相比,肥胖儿童在背包行走过程中,左、右足Ⅰ-Ⅴ跖骨、足中部、足跟内侧压强峰值显著增大(P<0.05);全足支撑期占整个足支撑阶段的百分比显著延长(P<0.05);足弓指数值(足中部与地面接触面积的百分比)和右足足轴角均显著增大(P<0.05);(2)结果提示,肥胖对儿童背包行走时的足底压力分布有明显的影响。与非肥胖儿童相比,肥胖儿童足跖骨、足中部、足跟内侧区域受力显著增大,身体的稳定性变差,行走时足更扁平,肥胖儿童足八字脚更严重。这些因素使得肥胖易造成儿童负重时的足底损伤。
BACKGROUND： Children usually wear school bags when walking, and overweight school bags do harm to the lower extremity and foot, thus affecting the child development. OBJECTIVE： To investigate the effect of obesity on gait characteristics of children wearing school bags during walking. METHODS： Forty pupils were enrolled in accordance with body mass index and ＂China school-age children and adolescents overweight, obesity screening body mass index classification standard＂, including 20 obese children （body mass index： （28.13＋3.4） kg/m2） and 20 non-obese ones （body mass index： （17.44＋1.57） kg/m2）. The gait parameters of children wearing school bags during walking were measured using a 2-m Footscan Plantar Pressure Plate System from RSscan International. RESULTS AND CONCLUSION： Compared with the non-obese children, the peak pressures under the metatarsal heads II-V, midfoot and heel lateral were significantly higher in obese children wearing school bags during walking （P 〈 0.05）. The time to peak pressures under the toes II-V, the metatarsal heads IV, V and mJdfoot was also significantly higher （P 〈 0.05）. In addition, the arch index for the foot, and right foot axis angle were significantly larger in the obese children as compared with the non-obese children （P 〈 0.05）. To conclude, obese children wearing school bags during walking have weaker walking stability with flatter foot pattern, the larger foot axis angle and dynamic plantar pressure distribution changes compared with non-obese children, which can result in foot damage.
出处
《中国组织工程研究》
CAS
北大核心
2017年第24期3900-3905,共6页
Chinese Journal of Tissue Engineering Research
基金
北京市自然科学基金(7152018)
北京市属高等学校青年拔尖人才培育计划(CIT&TCD201404177)
北京市科学委员会重大项目(Z151100003715001)~~
