Walking gait characteristics of adult women with different body mass indexes wearing different height heels

doi:10.3969/j.issn.2095-4344.2016.49.008

Abstract

Abstract:

BACKGROUND: Women who wear high heels often feel discomfort that will become a potential killer; therefore, it is impending to figure out how the heel height affecting walking gait features and the biomechanics mechanism.
OBJECTIVE: To investigate the walking gait features of adult women with different body mass indexes wearing different height heels.
METHODS: Based on the body mass index, 20 adult women were divided into two groups: overweight and criterion groups. The walking gait features when they in flat shoes or in different height high heels were detected using three-dimensional video analysis system and plantar pressure test system, and kinematics and kinetic parameters were collected.
RESULTS AND CONCLUSION: (1) Walking gait characteristics were normal when overweight subjects (24 kg/m2 ≤ body mass index < 28 kg/m2) in high heels with height lower than 5.3 cm; for criterion subjects (18.5 kg/m2 ≤ body mass index < 24 kg/m2, the heels height should be lower than 6.5 cm. The obviously abnormal walking gait features were visible in 8.5 cm high heels in the two groups. (2) The peak pressure intensity of the first, second and third metatarsal bones increased with heel height increasing, while the fifth metatarsal bone peak pressure showed a negative correlation with the height.

中国组织工程研究杂志出版内容重点：肾移植；肝移植；移植；心脏移植；组织移植；皮肤移植；皮瓣移植；血管移植；器官移植；组织工程

Key words: Body Mass Index, Shoes, Gait, Female, Tissue Engineering

CLC Number:

R318

Yan Hong-guang. Walking gait characteristics of adult women with different body mass indexes wearing different height heels[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(49): 7349-.

Figures/Tables 3

2.1 不同体质量指数成年女性穿不同高度高跟鞋行走时运动学指标分析 2.1.1 不同体质量指数成年女性穿不同高跟鞋行走的时空参数表2是超重组实验对象穿不同高度高跟鞋行走时的运动学参数，可以看出：随着鞋跟高度的增加，步态周期、支撑期、双支撑期、双支撑/支撑4项参数呈现逐渐延长趋势；当鞋跟高度为4 cm时与平底鞋相比这4项参数几乎无变化(P > 0.05)；鞋跟高度为5.3 cm时开始有变化，差异有显著性意义(P < 0.05)；当高度超过5.3 cm时出现显著变化(P < 0.01)；8.5 cm时各参数值达到最大(P < 0.01)。足放平时间、单支撑时相、Avg步速、步长、MaxCOPy轴则呈下降趋势，鞋跟高度为4 cm时与平底鞋比较以上参数变化相似；鞋跟高度为5.3 cm时各项参数出现明显下降趋势，差异有显著性意义(P < 0.05)；当高度超过5.3 cm时，出现显著变化(P < 0.01)；8.5 cm时各参数值达到最小值(P < 0.01)。MaxCOPx轴在整个步态周期中无显著性变化(P > 0.05)。表3是标准组穿不同高度高跟鞋行走的运动学参数，可以看出：随着鞋跟高度增加，步态周期、支撑期、双支撑期、双支撑/支撑4项参数呈现逐渐延长趋势；足放平时间、单支撑时相、Avg步速、步长、MaxCOPy轴则呈下降趋势。实验结果与超重组结果基本一致，但标准组试验对象穿鞋跟为4 cm、5.3 cm时与平底鞋比较差异无显著性意义(P > 0.05)，鞋跟在6.5 cm时开始出现显著性变化(P < 0.01)。 2.1.2 不同体质量指数成年女性穿不同高度高跟鞋行走过程中关节角度变化人体在行走过程中经历足跟着地、足放平时期、站立中期、足跟离地时期、迈步期、足跟再次着地6个时期完成一个步态周期[17]。从表4可以看出，随着鞋跟高度的增加，踝关节首次着地跖屈角度、站立相最大跖屈角度、足趾离地跖屈角度、迈步相最大角度呈现逐渐增加的趋势；膝关节首次着地屈曲角度呈逐渐下降趋势，站立相最大伸展角度、足趾离地伸展角度呈逐渐上升趋势，迈步相最大屈曲角度变化不明显；髋关节首次着地屈曲角度、足趾离地伸展角度亦逐渐增大，站立相最大伸展角度、迈步相最大屈曲角度变化不明显。通过差异性检验，鞋跟高度为4 cm时与平底鞋相比，踝关节、膝关节、髋关节在各时相中的角度没有显著变化(P > 0.05)；鞋跟高度为5.3 cm时与平底鞋相比，踝关节、膝关节在迈步相无显著性差异，其余各时相中差异有显著性意义(P < 0.05)，"

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