Svoboda Zdenek, Honzikova Lucie, Janura Miroslav, Vidal Tabata, Martinaskova Eliska
Department of Natural Sciences in Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic.
Acta Bioeng Biomech. 2014;16(3):89-93.
Deformities of the feet in children can influence not only optimal foot development but also the development of other body segments. The aim of the study was to compare the hip and pelvis kinematics in groups of children with and without valgus deformity of the hindfoot. Three groups of children participated in the study: bilateral hindfoot valgosity (11 children, age 5.4 ± 1.4 years), unilateral hindfoot valgosity (14 children, age 5.6 ± 1.6 years) and the control group (8 children, 4.8 ± 1.2). Hindfoot valgus angle was measured clinically during standing. Hindfoot valgosity was considered in the range of 6 to 20 degrees. Kinematic data from five trials for each child was obtained using the Vicon MX system (six infrared cameras, frequency 200 Hz, Vicon Motion Systems, Oxford, UK). The results of our study showed significantly higher pelvic anteversion during the whole gait cycle for both unilateral and bilateral hindfoot valgosity children and significantly higher hip external rotation during the first half of the stance phase in bilateral deformity. The differences in the hip and pelvis kinematics, when compared to the control group, are higher for the group with bilateral deformity than in the group with unilateral deformity.
儿童足部畸形不仅会影响足部的最佳发育，还会影响身体其他部位的发育。本研究的目的是比较有和没有后足外翻畸形的儿童组的髋部和骨盆运动学。三组儿童参与了该研究：双侧后足外翻（11名儿童，年龄5.4±1.4岁）、单侧后足外翻（14名儿童，年龄5.6±1.6岁）和对照组（8名儿童，4.8±1.2岁）。站立时临床测量后足外翻角度。后足外翻角度范围为6至20度。使用Vicon MX系统（六个红外摄像头，频率200 Hz，Vicon Motion Systems，英国牛津）获取每个儿童五次试验的运动学数据。我们的研究结果显示，单侧和双侧后足外翻儿童在整个步态周期中的骨盆前倾明显更高，双侧畸形儿童在站立期前半段的髋部外旋明显更高。与对照组相比，双侧畸形组的髋部和骨盆运动学差异比单侧畸形组更高。
