Winiarski Sławomir, Rutkowska-Kucharska Alicja, Zostawa Paweł, Uścinowicz-Zostawa Natalia, Klich Sebastian
Biomechanics Department, University School of Physical Education in Wrocław, Poland.
University School of Physical Education in Wrocław, Poland.
Acta Bioeng Biomech. 2017;19(3):107-113.
Nowadays, fashion has caused that many young women are wearing high-heeled shoes. Therefore, the aim of this study was to examine the effects of long-term walking in high-heeled shoes on the foot mechanics during barefoot gait.
Forty-three young women (22 ± 2.1 years) divided into two groups participated in this retrospective cohort study. The first group was composed of women who frequently wear high-heeled footwear. The second, infrequent wearers group, consisted of women who preferred flat-heeled shoes. Measurements of gait parameters were recorded for barefoot gait. A motion analysis system and two force plates were used in order to evaluate the lower-limb rocker mechanism, transverse foot arch height and parameters of ground reaction force.
Walking in high-heeled shoes modified barefoot foot mechanics, which manifested itself in a shorter duration (by ca. 4%) of the first and second rocker and a significantly longer duration (by 5%) of the third rocker phase as well as a substantial reduction in height of the transverse foot arch (by around 50%) in women habitually walking in high-heeled shoes. A significantly shorter relative duration of the third rocker (44.3% of cycle time) and greater value of the vertical component of ground reaction force (114.7% BW) in the third rocker phase were found in the group of women habitually walking in high-heeled shoes.
The mechanism of foot rolling, with flattened foot arch, and significantly higher values of the vertical component of ground reaction force and shorter time might lead to overload in lowerlimb joints in young women.
如今，时尚使得许多年轻女性穿着高跟鞋。因此，本研究的目的是检验长期穿着高跟鞋行走对赤脚步态时足部力学的影响。
43名年轻女性（22±2.1岁）分为两组参与了这项回顾性队列研究。第一组由经常穿高跟鞋的女性组成。第二组为不常穿高跟鞋组，由喜欢穿平底鞋的女性组成。记录赤脚步态的步态参数。使用运动分析系统和两个测力板来评估下肢摇摆机制、足横弓高度和地面反作用力参数。
穿高跟鞋行走改变了赤脚时的足部力学，表现为在经常穿高跟鞋的女性中，第一和第二摇摆期的持续时间缩短（约4%），第三摇摆期的持续时间显著延长（5%），以及足横弓高度大幅降低（约50%）。在经常穿高跟鞋的女性组中，发现第三摇摆期的相对持续时间显著缩短（占周期时间的44.3%），且第三摇摆期地面反作用力垂直分量的值更大（114.7%体重）。
足弓扁平的足部滚动机制、地面反作用力垂直分量的值显著更高以及时间更短，可能会导致年轻女性下肢关节过载。
