Coupled effect of load weights and belt use on male shoulder pressure redistribution.

IF 2 3区工程技术 Q3 ENGINEERING, INDUSTRIAL Ergonomics Pub Date : 2025-03-01 Epub Date: 2024-03-18 DOI:10.1080/00140139.2024.2328357

Yanyang Dai, Jian Li, Wen Cui, Jun Li

引用次数: 0

Abstract

Shoulder pressure redistribution is jointly affected by backpack loads and belt support. However, the combined effect of both factors has rarely been fully evaluated. Here, we studied the coupled effect of backpack loads and belt support on shoulder pressure redistribution. All twenty-eight healthy male subjects underwent eight loading conditions with both chest and hip belts fastened (CH) and unfastened (CON) in four conditions where the backpack weighed 7.5, 15, 22.5, and 30% of body weight (BW). Shoulder pressure distribution was quantified through a pressure-sensing vest mat. The results showed that using the hip belt and chest belt was effective in relieving the high pressure in the lateral clavicle and medial trapezius region and strengthening the load-bearing capacity of shoulder. However, the assistance in pressure relief of using belt was weakened when load increased to 30% BW. This study also showed that the belt use can be effective in improving pressure asymmetry on both sides.

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负重和使用安全带对男性肩部压力再分布的耦合效应。

肩部压力再分布受到背包负荷和腰带支撑的共同影响。然而，很少有人对这两个因素的综合影响进行全面评估。在此，我们研究了背包负荷和腰带支撑对肩部压力再分布的耦合影响。在背包重量分别为体重（BW）的 7.5%、15%、22.5% 和 30% 的四种情况下，所有 28 名健康男性受试者在胸带和胯带均系紧（CH）和未系紧（CON）的情况下接受了八种负载条件。肩部压力分布通过压力感应背心垫进行量化。结果表明，使用胯带和胸带能有效缓解锁骨外侧和斜方肌内侧区域的高压力，并增强肩部的承重能力。然而，当负重增加到 30% BW 时，使用腰带对缓解压力的帮助就会减弱。这项研究还表明，使用肩带可有效改善两侧压力不对称的情况。

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

Ergonomics 工程技术-工程：工业

CiteScore

4.60

自引率

12.50%

发文量

147

审稿时长

6 months

期刊介绍： Ergonomics, also known as human factors, is the scientific discipline that seeks to understand and improve human interactions with products, equipment, environments and systems. Drawing upon human biology, psychology, engineering and design, Ergonomics aims to develop and apply knowledge and techniques to optimise system performance, whilst protecting the health, safety and well-being of individuals involved. The attention of ergonomics extends across work, leisure and other aspects of our daily lives. The journal Ergonomics is an international refereed publication, with a 60 year tradition of disseminating high quality research. Original submissions, both theoretical and applied, are invited from across the subject, including physical, cognitive, organisational and environmental ergonomics. Papers reporting the findings of research from cognate disciplines are also welcome, where these contribute to understanding equipment, tasks, jobs, systems and environments and the corresponding needs, abilities and limitations of people. All published research articles in this journal have undergone rigorous peer review, based on initial editor screening and anonymous refereeing by independent expert referees.