Impedance pneumography using textile electrodes

Abstract

The acquisition of physiological parameters using textile and textile-integrated sensors has become an important alternative for mobile and long-term monitoring. We analyzed to different commercially available electrically conductive textiles concerning their applicability for textile-based impedance pneumography. We immersed the textiles to four corroding solutions and observed no considerable changes in the absolute value as well as the phase shift of the material impedances. Subsequently, we performed impedance pneumography tests with different current amplitudes and frequencies. Using silver coated synthetic textile electrodes it was possible to detect the correct respiration frequency during normal, flat as well as slow, deep respiration.

Perspective: Wearable Internet of Medical Things for Remote Tracking of Symptoms, Prediction of Health Anomalies, Implementation of Preventative Measures, and Control of Virus Spread During the Era of COVID-19

“…In addition to Spo2, respiratory rate (RR) can be achieved by various means, such as advanced processing of ECG (Shen et al, 2017 ) or through the use of an array of piezoresistive films placed non-invasively around an individual's chest to sense the frequency of the chest motion (Loriga et al, 2006 ; Pacelli et al, 2006a , b ; Witt et al, 2011 ; Fiedler et al, 2012 ; Atalay et al, 2014 ; Subbe and Kinsella, 2018 ). The challenge with measuring RR is the very low-frequency content, which makes it computationally difficult to estimate based on bioelectrical recording such as ECG.…”

Distributed Computing and Monitoring Technologies for Older Patients

“…However, gerotechnology does not necessarily involve intelligence in the sense of being sensitive and adjustable to patient's needs. Different aging-associated aids (e.g., vision and hearing aids [ 78 ], or even walking aids [ 79 ] and toileting aids [ 80 ]) are often considered as appliances of gerotechnology ; however, these do not directly fall into the scope of our book, unless they are capable of collecting meaningful medically relevant data, which we will reveal in the further chapters.…”