Spatiotemporal and kinematic parameters during uphill, downhill, and overground walking in forward head posture: a preliminary study

IF 2.4 3区医学 Q3 BIOPHYSICS

Journal of biomechanics Pub Date : 2025-07-11 DOI:10.1016/j.jbiomech.2025.112866

Seong Ho Yun , Young Min Lee , Jung Won Kwon

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引用次数: 0

Abstract

Forward head posture (FHP) induces forward shifts in the center of gravity (COG), affecting postural control and gait ability. Uphill and downhill walking require different postural control and gait strategies than overground walking due to the altered gravitational effect. The biomechanical characteristics of uphill and downhill walking in healthy adults have been demonstrated; however, those in individuals with FHP remain unclear. This study aimed to investigate COG, spatiotemporal, and kinematic parameters during uphill and downhill walking in individuals with FHP. This study included 10 individuals with FHP (FHP group) and 10 healthy adults (control group). All participants performed three experimental sessions: uphill, downhill, and overground walking. Spatiotemporal and kinematic parameters were measured using a motion analysis system. Results showed significant differences in COG parameters between groups in all sessions (p < 0.05), while no significant differences were found in spatiotemporal parameters (p > 0.05). In the uphill walking session, the mean and peak of head and knee joints during the stance phase in the FHP group were significantly greater than in the control group (p < 0.05). The FHP group showed a significantly greater mean of the knee joint during the stance phase than the control group in downhill and overground walking sessions (p < 0.05). Our results indicate that individuals with FHP have different gait mechanisms during uphill, downhill, and overground walking due to forward-shifted head COG relative to the body. These findings provide the biomechanical mechanisms related to uphill and downhill walking in individuals with FHP.

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头部前倾上坡、下坡和地上行走的时空和运动学参数：初步研究

头部前倾（FHP）会引起身体重心前移，影响姿势控制和步态能力。由于重力作用的改变，上坡和下坡行走比地上行走需要不同的姿势控制和步态策略。健康成人上坡和下坡行走的生物力学特征已得到证实；然而，FHP患者的情况尚不清楚。本研究旨在探讨FHP患者上坡和下坡行走时的COG、时空和运动学参数。本研究包括10名FHP患者（FHP组）和10名健康成人（对照组）。所有参与者都进行了三个实验环节：上坡、下坡和地上行走。使用运动分析系统测量时空和运动学参数。结果显示，在所有疗程中，组间COG参数有显著差异(p <；0.05)，而时空参数差异无统计学意义(p >；0.05)。在上坡步行阶段，FHP组站立阶段头膝关节的平均值和峰值均显著大于对照组(p <；0.05)。在下坡和地上步行阶段，FHP组在站立阶段的膝关节平均值明显高于对照组(p <；0.05)。我们的研究结果表明，FHP个体在上坡、下坡和地上行走时由于头部相对于身体的前移而具有不同的步态机制。这些发现提供了与FHP患者上坡和下坡行走相关的生物力学机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of biomechanics 生物-工程：生物医学

CiteScore

5.10

自引率

4.20%

发文量

345

审稿时长

1 months

期刊介绍： The Journal of Biomechanics publishes reports of original and substantial findings using the principles of mechanics to explore biological problems. Analytical, as well as experimental papers may be submitted, and the journal accepts original articles, surveys and perspective articles (usually by Editorial invitation only), book reviews and letters to the Editor. The criteria for acceptance of manuscripts include excellence, novelty, significance, clarity, conciseness and interest to the readership. Papers published in the journal may cover a wide range of topics in biomechanics, including, but not limited to: -Fundamental Topics - Biomechanics of the musculoskeletal, cardiovascular, and respiratory systems, mechanics of hard and soft tissues, biofluid mechanics, mechanics of prostheses and implant-tissue interfaces, mechanics of cells. -Cardiovascular and Respiratory Biomechanics - Mechanics of blood-flow, air-flow, mechanics of the soft tissues, flow-tissue or flow-prosthesis interactions. -Cell Biomechanics - Biomechanic analyses of cells, membranes and sub-cellular structures; the relationship of the mechanical environment to cell and tissue response. -Dental Biomechanics - Design and analysis of dental tissues and prostheses, mechanics of chewing. -Functional Tissue Engineering - The role of biomechanical factors in engineered tissue replacements and regenerative medicine. -Injury Biomechanics - Mechanics of impact and trauma, dynamics of man-machine interaction. -Molecular Biomechanics - Mechanical analyses of biomolecules. -Orthopedic Biomechanics - Mechanics of fracture and fracture fixation, mechanics of implants and implant fixation, mechanics of bones and joints, wear of natural and artificial joints. -Rehabilitation Biomechanics - Analyses of gait, mechanics of prosthetics and orthotics. -Sports Biomechanics - Mechanical analyses of sports performance.