使用惯性运动捕捉手动材料处理过程中关节动力学的估计:一个后续研究
Sebastian Skals1, Mark de Zee2, Michael Skipper Andersen3
1The National Research Centre for the Working Environment, Lersø Parkalle 105, Copenhagen East 2100, Denmark.
Journal of biomechanical engineering
|November 9, 2024
概括
使用惯性运动捕捉的肌肉骨模型对评估手工物料处理风险有希望. 然而,在估计脊柱和膝关节力量方面仍然存在重大不准确性,这需要进一步开发方法,以进行可靠的人体工程学评估.
科学领域:
- 生物力学 生物力学
- 人体工程学就是人体工程学.
- 职业健康 职业健康 职业健康
背景情况:
- 使用惯性运动捕获 (IMC) 和地面反应力 (GRF) 预测的肌肉骨模型为手动物料处理 (MMH) 的现场风险评估提供了潜力.
- 之前的研究强调了脊柱力估计的不准确性,其他关键结果变量的准确性仍然不清楚.
研究的目的:
- 为了评估基于IMC的肌肉骨模型估计的膝盖,肩膀和L5-S1关节反应力 (JRFs) 的准确性,与金标准的光学运动捕捉 (OMC) 和力板模型相比.
- 评估基于IMC的模型估计在各种提升条件中的一致性和绝对一致性.
主要方法:
- 基于IMC的模型中的JRF (膝盖,肩膀,L5-S1) 与基于OMC的模型中的JRF (膝盖,肩膀,L5-S1) 在19名健康受试者进行各种举重时进行了比较.
- 分析了包括水平位置 (HLs),沉积高度 (DHs) 和不对称角度 (AAs) 在内的提升变化.
- 在统计学上比较两个模型之间的一致性 (r) 和绝对一致性 (RMSE).
主要成果:
- 在L5-S1轴压缩 (AC) 和前后 (AP) 切削力,双侧膝盖JRF (RMSE 40.9-117%BW) 中发现了相当大的绝对差异.
- Glenohumeral JRF 和垂直 GRF 显示出最高的一致性和绝对一致性 (r 中位数 0.78,RMSE 7.63-34.9%BW).
- L5-S1交流力表现出不错的一致性 (r 中位数为0.80),但绝对差异显著.
结论:
- 基于IMC的肌肉骨模型显示出潜力,但面临着持续的准确性挑战,特别是脊柱和膝盖的JRF,与先前的发现保持一致.
- 需要进一步开发方法,以提高这些模型的准确性和可靠性,以便在MMH中进行全面的人体工程学评估.
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