322
T. Penzel et al.
Fig. 20.4 Cardiorespiratory synchronisation versus coordination during central sleep apnea.
Breathing frequency and amplitude both influencing the synchrogram as well as the coordigram.
Apneas mean prolonged time to the next respiratory onset and thus are represented as disruptive
diagonal lines of heartbeats in the cardiorespiratory synchrogram. In the coordigram however, the
corresponding heartbeats are plotted farther away from t = 0 and thus do not disrupt the plot
(adapted from [4] with different data)
Fig. 20.5 Increase in cardiorespiratory coordination across central sleep apnea. The airflow clearly
shows the begin and the end of the apnea and red horizontal lines in the coordigram indicate
increased cardiorespiratory coordination
T. Penzel et al.
Fig. 20.4 Cardiorespiratory synchronisation versus coordination during central sleep apnea.
Breathing frequency and amplitude both influencing the synchrogram as well as the coordigram.
Apneas mean prolonged time to the next respiratory onset and thus are represented as disruptive
diagonal lines of heartbeats in the cardiorespiratory synchrogram. In the coordigram however, the
corresponding heartbeats are plotted farther away from t = 0 and thus do not disrupt the plot
(adapted from [4] with different data)
Fig. 20.5 Increase in cardiorespiratory coordination across central sleep apnea. The airflow clearly
shows the begin and the end of the apnea and red horizontal lines in the coordigram indicate
increased cardiorespiratory coordination