Artificial Minute Ventilation Control by Heart Rate

概要

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The relationships between the alveolar ventilatory minute volume and the heart rate or the carbon dioxide output in man were studied on five normal subjects during exercise with a bicycle ergometer. The ventilatory minute volume, the heart rate and the carbon dioxide output were measured continuously throughout steady-and transient-state of the exercise.<BR>From these experimental data, the alveolar ventilatory minute volume appeared to be linearly related to the heart rate or to the carbon dioxide output, as far as the exercise was in physiological range. Based on these results, an analog simulation of the respiratory system with the artificial control of respiration by heart rate was considered. The minute ventilation obtained by this method was compared with actual minute ventilation of the subject. The respiration obtained by our analog model controlled with the subject's heart rate showed almost similar results as that of the subject himself.<BR>It is concluded from our experimental data that the use of heart rate is favorable as the simplest input signal of artificial repiratory control system to some extent.
一般社団法人日本生体医工学会の論文