A simple biofeedback digital data collection instrument to control ventilation during autonomic investigations
| Autor: | John E. Ottenweller, Thomas W. Findley, Benjamin H. Natelson, Stanley S Reisman, John J. LaManca, Alan M. Davis |
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| Rok vydání: | 1999 |
| Předmět: |
Respiratory rate
Physiology business.industry General Neuroscience medicine.medical_treatment Respiration Biofeedback Psychology Vagus Nerve Carbon Dioxide Biofeedback Signal Heart Rate Anesthesia Heart rate Breathing medicine Tidal Volume Heart rate variability Humans Neurology (clinical) Expiration business Simulation Tidal volume |
| Zdroj: | Journal of the autonomic nervous system. 77(1) |
| ISSN: | 0165-1838 |
| Popis: | Autonomic evaluation using the heart rate spectrum is sensitive to changes in breathing parameters, but few studies using this technique have controlled both the rate and depth of breathing. Fewer still have also measured or controlled inspiration and expiration times, or end-tidal carbon dioxide. This study describes the development of a digital instrument that can be used to alter tidal volume, ventilation rate and the time of inspiration and expiration with paced breathing visual templates displayed on a computer monitor. The digital instrument runs during data acquisition and displays the ventilatory signal from the subject superimposed on the paced breathing templates. Thus, adjustment of ventilatory parameters is achieved by matching the actual breathing signal to the target template. By regulating the ventilation rate and the tidal volume, end-tidal carbon dioxide could be increased or decreased in small increments. This instrument provided ventilatory control to investigate the effects on the heart rate spectrum of breathing depth, ventilation rate, end-tidal carbon dioxide and the time of expiration. |
| Databáze: | OpenAIRE |
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