Cieślińska-Świder Joanna, Furmanek Mariusz Paweł, Błaszczyk Janusz Wiesław
The Jerzy Kukuczka Academy of Physical Education, Department of Physiotherapy of the Nervous System and the Musculoskeletal System, Katowice, Poland.
The Jerzy Kukuczka Academy of Physical Education, Department of Human Motor Behavior, Katowice, Poland.
J Biomech. 2017 Jul 26;60:162-169. doi: 10.1016/j.jbiomech.2017.06.027. Epub 2017 Jun 27.
A growing body of evidence suggests, that excessive body weight is inseparably connected with postural instability. In none of previous studies, body weight distribution has been considered as a factor, which may affect results of a static posturography. The purpose of the present study is to quantify some center of foot pressure (COP) characteristics in 40 obese women with android type of obesity (waist-to-hip ratio - WHR≥0.85, BMI: 37.5±5.4) and 40 obese women with gynoid type of obesity (WHR<0.85, BMI: 36.9±5.1). Variables of postural sway were acquired while subjects were standing quietly on a force plate with eyes open and closed. Both in the sagittal and frontal plane sway range, average velocity, and maximal velocity of COP were calculated. Moreover, the total average velocity and total maximal velocity of the COP displacement were computed. Women with abdominal obesity showed a larger sway range in the anterior-posterior plane with eyes open (p<0.0282) and eyes closed conditions (p<0.0115) and a greater maximal COP velocity to compare with subjects with gynoidal obese type (p<0.0112) with eyes closed condition. The postural stability in obese women from the biomechanical point of view is strongly dependent on body distribution. Women with the abdominal obesity type may be exposed to a greater risk of postural instability as compare to women with gynoid fat distribution.
越来越多的证据表明，超重与姿势不稳密切相关。在以往的研究中，均未将体重分布视为可能影响静态姿势描记术结果的一个因素。本研究的目的是量化40名腹部型肥胖的肥胖女性（腰臀比 - WHR≥0.85，BMI：37.5±5.4）和40名梨形肥胖的肥胖女性（WHR<0.85，BMI：36.9±5.1）的一些足底压力中心（COP）特征。在受试者睁眼和闭眼安静站立在测力板上时获取姿势摆动变量。计算矢状面和额状面的摆动范围、COP的平均速度和最大速度。此外，还计算了COP位移的总平均速度和总最大速度。与梨形肥胖类型的受试者相比，腹部肥胖的女性在睁眼（p<0.0282）和闭眼（p<0.0115）条件下，前后平面的摆动范围更大，并且在闭眼条件下，COP的最大速度更高（p<0.0112）。从生物力学角度来看，肥胖女性的姿势稳定性很大程度上取决于身体分布。与具有梨形脂肪分布的女性相比，腹部肥胖类型的女性可能面临更大的姿势不稳风险。
