对基于二维和三维的骨化身技术进行比较研究,以评估健康的老年人身体活动和功能
Alisa Lincke1, Cecilia Fagerström2,3, Mirjam Ekstedt2,4
1Faculty of Technology, Department of Computer Science and Media Technology, Linnaeus University, Växjö, Sweden.
Health informatics journal
|November 4, 2023
概括
方便的二维骨化身技术 (SAT) 显示出对老年人体育活动的评估有前途,在某些测试中提供与3D SAT相似的准确性. 虽然功能评估需要改进,但2D SAT简化了临床评估.
科学领域:
- 老年病学和康复疗法
- 生物医学工程 生物医学工程
- 医疗保健中的人工智能
背景情况:
- 保持体力活动 (PA) 和功能对于老年人的生活质量至关重要.
- 目前的评估方法往往不可靠,耗时,缺乏常规的临床整合.
- 需要简化,准确的工具来评估PA和老年人群中的功能.
研究的目的:
- 评估二维骨化身技术 (SAT) 的准确性,以评估健康老年人的身体活动和功能.
- 将2D SAT的表现与3D SAT和传统评估方法进行比较.
- 确定2D SAT是否可以为临床和研究环境提供简化的替代方案.
主要方法:
- 利用Tensorflow的姿势估计模型从功能测试的视频录制中提取2D骨架.
- 使用深度神经网络来预测功能测试 (FT),专家评估 (EA),加速度计数据 (AC) 和自我评估PA (SA) 的结果.
- 进行统计分析,将2D SAT预测与3D SAT模型的准确性进行比较.
主要成果:
- 在预测功能测试和专家评估方面,2D SAT的准确性低于3D SAT.
- 基于加速度计的评估 (AC) 的准确性显示,2D SAT.的平均绝对误差 (MAE) 为7%.
- 在AC的2D和3DSAT和两个特定的功能测试 (30sCST,TUG) 之间没有发现显著差异,但在4阶段平衡测试 (4SBT) 中出现了显著差异.
结论:
- 方便的2D SAT提供了一种潜在的可行,简化的方法来评估老年人的身体活动,与标准方法相比,准确性损失最小.
- 在评估身体功能方面,2D SAT的准确性需要进一步改进.
- 2D SAT对未来的临床研究和实践在评估健康老年人的身体活动方面显示出希望.
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