Villarrasa-Sapiña Israel, García-Massó Xavier, Serra-Añó Pilar, Garcia-Lucerga Consolación, Gonzalez Luis-Millán, Lurbe Empar
Departamento de Educación Física y Deportiva, Universidad de Valencia, Valencia Spain.
Departamento de Didáctica de la Expresión Musical, Plástica y Corporal, Universidad de Valencia, Valencia, Spain.
Gait Posture. 2016 Sep;49:1-6. doi: 10.1016/j.gaitpost.2016.06.012. Epub 2016 Jun 15.
The main objective of this study was to determine differences in postural control between obese and non-obese children.
The study design was cross-sectional, prospective, between-subjects. Postural control variables were obtained from a group of obese children and a normal-weight control group under two different postural conditions: bipedal standing position with eyes open and bipedal standing with eyes closed. Variables were obtained for each balance condition using time domain and sway-density plot analysis of the center of pressure signals acquired by means of a force plate.
Pairwise comparisons revealed significant differences between obese and normal-weight children in mean velocity in antero-posterior and medio-lateral directions, ellipse area and mean distance with both eyes open and eyes closed. Normal-weight subjects obtained lower values in all these variables than obese subjects. Furthermore, there were differences between both groups in mean peaks with eyes open and in mean time with eyes closed.
Alterations were detected in the intermittent postural control in obese children. According to the results obtained, active anticipatory control produces higher center of pressure displacement responses in obese children and the periods during which balance is maintained by passive control and reflex mechanisms are of shorter duration.
本研究的主要目的是确定肥胖儿童和非肥胖儿童在姿势控制方面的差异。
本研究设计为横断面、前瞻性、受试者间研究。姿势控制变量是从一组肥胖儿童和一个正常体重对照组在两种不同姿势条件下获得的：双眼睁开的双足站立姿势和双眼闭合的双足站立姿势。使用通过测力板采集的压力中心信号的时域和摆动密度图分析，针对每种平衡条件获取变量。
成对比较显示，肥胖儿童和正常体重儿童在双眼睁开和双眼闭合时的前后方向和中外侧方向的平均速度、椭圆面积和平均距离存在显著差异。正常体重受试者在所有这些变量中的值均低于肥胖受试者。此外，两组在双眼睁开时的平均峰值和双眼闭合时的平均时间也存在差异。
在肥胖儿童的间歇性姿势控制中检测到改变。根据获得的结果，主动预期控制在肥胖儿童中产生更高的压力中心位移反应，并且通过被动控制和反射机制维持平衡的时间段更短。
