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Opto‐Electronic Belts for Recording Respiration in Psychophysiological Experimentation and Therapy
Author(s) -
Strasburger Hans,
Klenk Dieter
Publication year - 1983
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.1983.tb03295.x
Subject(s) - breathing , calibration , respiration , respiratory monitoring , transducer , computer science , acoustics , psychology , statistics , respiratory system , medicine , mathematics , physics , psychiatry , anatomy
A temperature‐compensated and a simpler, non‐compensated respiration measuring belt based on an infrared light sensing principle are described. The systems are designed to overcome shortcomings in usual respiration monitoring methods applicable to: 1) a respiratory‐sinus‐arrhythmia quantification study, and 2) a portable circulation monitoring system. Both devices have a rugged and lightweight construction, are comfortable for subjects, relatively free from artifacts, are of low cost, and are simply interfaced to recording apparatus. Additionally, the temperature‐compensated version allows for DC‐recording, permitting monitoring of breath‐holding, which is not feasible with conventional transducers. The simple construction of the non‐compensated version makes it especially suitable to routine therapy and monitoring applications. Use of two temperature‐compensated belts measuring thoracic and abdominal circumference allows for breath‐volume calibration by multiple linear regression with reliabilities between 75 and 95%. The mathematical basis for this calibration procedure is discussed in detail.