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相关概念视频

Self-Evaluation Maintenance Model01:29

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The Self-Evaluation Maintenance (SEM) model offers a psychological framework to understand how individuals’ self-esteem is influenced by the achievements of others, particularly those with whom they share close personal bonds. The SEM model operates when personal rather than social identity guides individuals. Central to this model is the notion that individuals have an inherent desire to preserve a favorable self-image, which is continuously shaped by interpersonal comparisons and...

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相关实验视频

Updated: Jul 17, 2026

Lower Limb Biomechanical Analysis of Healthy Participants
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在提升过程中评估低背负荷,使用个性化电肌图驱动的车模型和基于NIOSH的风险水平.

Mohamed Irfan Refai1, Tiwana Varrecchia2, Giorgia Chini2

  • 1Department of Biomechanical Engineering, University of Twente, Enschede, Netherlands.

Frontiers in bioengineering and biotechnology
|February 24, 2025
PubMed
概括

新的生物机械模型准确地评估了工作场所的起重风险,揭示了比当前指导方针建议的更高的脊柱负荷. 个性化模型可以改善对身体要求高的工作的伤害预防.

关键词:
美国NIOSH医院电动肌谱学 电动肌谱学提升 提升 提升 提升肌肉骨模型的建模工作场所肌肉骨疾病 工作场所肌肉骨疾病

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科学领域:

  • 职业生物力学 职业生物力学
  • 人体工程学就是人体工程学.
  • 肌肉骨系统建模

背景情况:

  • 由于举重等体力苛刻的任务而造成的工作场所伤害是一个重大问题.
  • 目前的人体工程学评估,如修订的NIOSH提升方程 (RNLE),估计低背负荷的风险.
  • 肌肉骨建模的进步允许对生物力学负荷进行个性化,生理学上有效的估计.

研究的目的:

  • 为了比较NIOSH修订起重方程 (RNLE) 和个性化肌肉骨模型 (pEMS) 的风险评估能力.
  • 在使用RNLE和pEMS的各种提升任务期间评估低背负荷.
  • 为了确定 lumbosacral 压力负荷是否是一个优越的风险指标.

主要方法:

  • 七名健康参与者执行了不同风险级别的举重任务.
  • 使用RNLE和pEMS评估了风险和低背负荷.
  • pEMS使用了表面电肌图和关节角度数据来估计腰骨关节负荷.

主要成果:

  • pEMS估计的生物力学负荷与RNLE定义的风险水平保持一致.
  • 然而,pEMS在腰骨关节的压力和剪切负荷高于RNLE极限.
  • 腰椎神经压缩负荷显示出作为更精确的风险划分参数的潜力.

结论:

  • 个性化的肌肉骨模型为举重任务提供了详细的生物机械洞察力.
  • 当前的人体工程学指导方针可能低估了在苛刻的任务中实际体验的低背负.
  • 建议对不同人群和可穿戴传感器进行进一步的研究,以进行个性化工作场所风险评估和肌肉骨健康监测.