Ryew Che-Cheong, Hyun Seung-Hyun
Department of Kinesiology, College of Natural Science, Jeju National University, Jeju, Korea.
J Exerc Rehabil. 2018 Aug 24;14(4):699-703. doi: 10.12965/jer.1836262.131. eCollection 2018 Aug.
Recently though various hip seats for carrying infant of women was designed and developed, then, wearing slipper may restrain the movement of bare foot. The study was undertaken to investigate the dynamic stability and kinetic variables according to between position of carrying infant and wearing slipper. Adult female (n=10) and under one year age of infant (n=10) participated in the study. Extrapolated center of mass, center of pressure, ground reaction force (GRF), and leg stiffness of gait characteristics using 3-dimensional cinematography and GRF were analyzed. Dynamic stability according to position of carrying infant and wearing slipper was not significant. While when carried an infant against normal gait showed significant difference in breaking force, leg stiffness and loading rate (<0.001). Of which breaking force and vertical impulse were more increased when the back-carried against fore-carried of trunk. Thus it resulted in transformation on types of impulse transfer to leg and COG of women's carrying infant, which may be strategy for securing a dynamic stability. Therefore experts related with exercise rehabilitation should understand sufficiently on gait characteristics of women with diseases on muscular-skeletal system and perform effective rehabilitation and treatment.
最近，虽然设计并开发了各种供女性携带婴儿的髋部座椅，但穿拖鞋可能会限制赤脚的活动。本研究旨在调查根据携带婴儿的姿势和穿拖鞋情况的动态稳定性和动力学变量。成年女性（n = 10）和一岁以下婴儿（n = 10）参与了该研究。使用三维摄影和地面反作用力（GRF）分析了步态特征的外推质心、压力中心、地面反作用力（GRF）和腿部刚度。根据携带婴儿的姿势和穿拖鞋情况的动态稳定性不显著。而当与正常步态相比携带婴儿时，在制动力、腿部刚度和加载率方面显示出显著差异（<0.001）。其中，当背部携带婴儿相对于躯干前部携带时，制动力和垂直冲量增加得更多。因此，这导致了女性携带婴儿时冲量传递到腿部和重心的类型发生转变，这可能是确保动态稳定性的一种策略。因此，与运动康复相关的专家应充分了解患有肌肉骨骼系统疾病的女性的步态特征，并进行有效的康复和治疗。
