A study of in-shoe plantar pressure distribution while firefighters carrying self-contained breathing apparatus in walking and running

IF 2.4 3区医学 Q3 BIOPHYSICS

Journal of biomechanics Pub Date : 2025-07-07 DOI:10.1016/j.jbiomech.2025.112852

Bing Xie, Junxia Zhang

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引用次数: 0

Abstract

Walking and running with self-contained breathing apparatus (SCBA) are the most common activities among firefighters, but the effect of SCBA carriage on the plantar pressure distribution remains unclear. The purpose of this study is to analyze plantar pressure distribution while carrying SCBA during walking and running.

Thirty volunteer firefighters participated in the walking and running tasks with no SCBA equipped and SCBA carrying conditions. Data of plantar pressure parameters, including peak pressures and pressure–time integrals, were recorded by Pedar-X in-shoe system in participants’ walking and running processes. Also, the pressures in each region during gait cycle were analyzed. Statistical analyses were performed using repeated measures analysis of variance (p < 0.05).

Peak pressures in all regions except for the great toe and medial metatarsal regions were higher in the SCBA carrying condition than in the no SCBA equipped condition. Running with SCBA reduced peak pressures in the midfoot region, while increasing peak pressures and pressure–time integrals in the toe, metatarsal, and heel regions compared to walking with SCBA. In addition, compared to the no SCBA equipped, the maximum peak pressure shifted from the great toes to the lateral toes in the toe region, from the medial metatarsal to the lateral metatarsal in the metatarsal region, and from the lateral arch to the medial arch in the midfoot region when carrying SCBA. The results provide an initial baseline for the development of firefighting boots aiming to increase comfort and performance during activities.

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消防员携带自给式呼吸器行走和跑步时鞋内足底压力分布的研究

在消防队员中，携带自给式呼吸器（SCBA）行走和跑步是最常见的活动，但携带SCBA对足底压力分布的影响尚不清楚。本研究的目的是分析步行和跑步时携带SCBA时足底压力的分布。30名志愿消防员在没有装备SCBA和携带SCBA的条件下参加了步行和跑步任务。通过Pedar-X鞋内系统记录参与者在步行和跑步过程中的足底压力参数数据，包括峰值压力和压力-时间积分。同时，分析了步态周期中各区域的压力。统计学分析采用重复测量方差分析(p <；0.05)。除了大脚趾和内侧跖骨区域外，携带SCBA的所有区域的峰值压力都高于未配备SCBA的情况。与SCBA步行相比，SCBA跑步降低了足中部区域的峰值压力，同时增加了脚趾、跖骨和脚跟区域的峰值压力和压力时间积分。此外，与未配备SCBA相比，携带SCBA时，最大峰值压力在趾区从大脚趾向外侧脚趾转移，在跖区从内侧跖向外侧跖转移，在足中区从外侧弓向内侧弓转移。研究结果为消防靴的开发提供了初步的基准，旨在提高活动期间的舒适性和性能。

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.