Laufer B, Krueger-Ziolek S, Docherty P D, Hoeflinger F, Reindl L, Moeller K
Annu Int Conf IEEE Eng Med Biol Soc. 2020 Jul;2020:4632-4635. doi: 10.1109/EMBC44109.2020.9175578.
Various measurement systems can be used to obtain dynamic circumferences of the human upper body, but each of these systems has disadvantages. In this feasibility study we introduce a non-invasive and wearable thoracic belt to measure dynamic changes of circumferences of thorax or abdomen. To evaluate this approach, five subjects undertook various breaths of disparate tidal volumes, which were measured by the belt and simultaneously by a motion capture system which provided a reference metric.The results of the belt concurred with the reference system. A coefficient of determination (adjusted R) of 0.99 and a mean squared error of less than 0.87 mm showed that the belt is capable of measuring changes accurately and a couple of respiratory parameters, such as the respiratory rate, can be obtained.Clinical Relevance-The introduced system links surface motions of the upper body with the underlying respiratory mechanics. Thus it provides some respiratory parameters without the disadvantages of a facemask or a mouthpiece. The system could allow the analysis of breathing status in some clinical applications and could be used for low-cost monitoring in homecare or to analyse respiratory parameters during sports.
可以使用各种测量系统来获取人体上半身的动态周长，但这些系统都有缺点。在这项可行性研究中，我们引入了一种非侵入性的可穿戴胸带，用于测量胸部或腹部周长的动态变化。为了评估这种方法，五名受试者进行了不同潮气量的各种呼吸，这些呼吸由胸带测量，同时由提供参考指标的运动捕捉系统测量。胸带的测量结果与参考系统一致。决定系数（调整后的R）为0.99，均方误差小于0.87毫米，表明该胸带能够准确测量变化，并且可以获得一些呼吸参数，如呼吸频率。临床意义——引入的系统将上半身的表面运动与潜在的呼吸力学联系起来。因此，它提供了一些呼吸参数，而没有面罩或口器的缺点。该系统可以在一些临床应用中分析呼吸状态，可用于家庭护理中的低成本监测或分析运动期间的呼吸参数。
