腹带对减少高速飞行器极限穿越时的脊柱力和肌肉活动的影响

IF 2.5 2区 工程技术 Q2 ENGINEERING, INDUSTRIAL
Zhenkai Zhao , Leiming Gao , Benjamin Simpson , James Campbell , Neil J. Mansfield
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引用次数: 0

摘要

高速艇(HSC)操作员所经历的反复高重力冲击和全身振动(WBV)会增加疲劳、背痛以及急性和慢性损伤的风险,尤其是在脊柱的腰部区域。有关腹带的研究表明,在举重和高速艇的情况下,腹带对稳定腰部躯干和减轻背痛有好处。本文介绍了一种人体肌肉骨骼模型,用于模拟在高重力冲击下腰带对乘坐 HSC 的乘员的影响。研究参数包括冲击严重程度(峰值加速度从 3 g 到 10 g)、人体尺寸和肌肉强度、腰带宽度和腰带力。结果显示,在人体模型中加入腹带后,腹内压(IAP)平均增加了 120%,腹横肌活动减少了 9%,L4/L5 关节处的脊柱压缩力减少了 12%。总之,在不同冲击严重程度的高强度 WBV 运动中,佩戴腹部束腹带可明显帮助腹部肌肉并保持稳固的核心。它可能会对颈部区域造成轻微的负面影响,使 C4/C5 关节处的剪切力增加 2.4%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of the abdominal belt on the reduction of spinal forces and muscle activities during extreme transits of high-speed craft

Repeated high-g shocks and whole-body vibration (WBV) as experienced by operators of High-Speed Craft (HSC) increase the risk of fatigue, back pain, and acute and chronic injuries, especially in the lumbar region of the spine. Studies on abdominal belts have suggested their beneficial effects on lumbar torso stabilisation and back pain mitigation in both weight lifting and HSC scenarios. This paper presents a human musculoskeletal model to simulate belt effects for occupants on HSC under high-g shocks. Parameters included the shock severity with peak acceleration ranging from 3 g to 10 g, human dimensions and muscle strengths, the belt width and belt forces are investigated. The results show an average of 120% increase in the intra-abdominal pressure (IAP), a 9% reduction in the transverse abdominis activities, and a 12% reduction in the spinal compressive force at the L4/L5 joints when the abdominal belt is added to the human model. In conclusion, wearing an abdominal belt significantly assists abdominal muscles and maintains a solid core during intense WBV generated in different shock severity levels. It may cause a small negative influence on the neck region with a 2.4% increase in the shear force at the C4/C5 joints.

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来源期刊
International Journal of Industrial Ergonomics
International Journal of Industrial Ergonomics 工程技术-工程:工业
CiteScore
6.40
自引率
12.90%
发文量
110
审稿时长
56 days
期刊介绍: The journal publishes original contributions that add to our understanding of the role of humans in today systems and the interactions thereof with various system components. The journal typically covers the following areas: industrial and occupational ergonomics, design of systems, tools and equipment, human performance measurement and modeling, human productivity, humans in technologically complex systems, and safety. The focus of the articles includes basic theoretical advances, applications, case studies, new methodologies and procedures; and empirical studies.
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