Zhang Yan, Wang Meizi, Awrejcewicz Jan, Fekete Gusztáv, Ren Feng, Gu Yaodong
Faculty of Sports Science, Ningbo University; Research Academy of Grand Health Interdisciplinary, Ningbo University; Department of Automation, Biomechanics and Mechatronics, The Lodz University of Technology.
Faculty of Sports Science, Ningbo University.
J Vis Exp. 2017 Sep 14(127):55714. doi: 10.3791/55714.
A limited number of studies have explored lower-limb biomechanics during high-heeled jogging and running, and most studies have failed to clarify the wearing experience of subjects. This protocol describes the differences in lower-limb kinematics and ground reaction force (GRF) between experienced wearers (EW) and inexperienced wearers (IEW) during moderate high-heeled jogging and running. A three-dimensional (3D) motion analysis system with a configured force platform was used to synchronously capture lower-limb joint movements and GRF. 36 young females volunteered to participate in this study and were asked about high-heeled shoe-wearing experience, including frequency, duration, heel types, and heel heights. Eleven who had the experience of 3 to 6 cm heels for a minimum of three days per week (6 h per day) for at least two years and eleven who wore high heels less than twice per month participated. Subjects performed jogging and running at comfortable low and high speeds, respectively, with the right foot completely stepping onto a force platform when passing by along a 10 m walkway. EW and IEW adopted different biomechanical adaptations while jogging and running. IEW exhibited a generally larger range of joint movement, while EW showed a dramatically larger loading rate of GRF during running. Hence, further studies on the lower-limb biomechanics of high-heeled gait should strictly control the wearing experience of the subjects.
少数研究探讨了穿着高跟鞋慢跑和跑步时的下肢生物力学,且大多数研究未能阐明受试者的穿着体验。本方案描述了经验丰富的穿着者(EW)和经验不足的穿着者(IEW)在适度穿着高跟鞋慢跑和跑步时下肢运动学和地面反作用力(GRF)的差异。使用配备测力平台的三维(3D)运动分析系统同步捕捉下肢关节运动和GRF。36名年轻女性自愿参与本研究,并被问及高跟鞋穿着体验,包括频率、时长、鞋跟类型和鞋跟高度。其中11名女性有穿着3至6厘米高跟鞋的经验,每周至少三天(每天6小时),至少持续两年;另外11名女性每月穿高跟鞋次数少于两次。受试者分别以舒适的低速和高速进行慢跑和跑步,右脚在沿着10米长的通道经过时完全踏上测力平台。EW和IEW在慢跑和跑步时采用了不同的生物力学适应方式。IEW的关节运动范围通常更大,而EW在跑步时GRF的加载率显著更高。因此,关于高跟鞋步态下肢生物力学的进一步研究应严格控制受试者的穿着体验。