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  • Title: The effects of high-frequency inflation and high-frequency deflation on respiration in rabbits.
    Author: Homma I, Onimaru H, Oouchi M, Ichikawa S.
    Journal: Neurosci Lett; 1985 Oct 10; 60(3):307-11. PubMed ID: 4069439.
    Abstract:
    High-frequency inflating and deflating triangular pulses of pressure were applied to air in the trachea of urethane-chloralose-anesthetized rabbits. Expiratory time was increased by high-frequency inflation (HFI) and decreased by high-frequency deflation (HFD). Both had little effect on inspiratory time or tidal phrenic nerve activity. HFD provoked more tonic type phrenic activity, with discharges being evident during the expiratory phase. It was demonstrated that HFI, which probably stimulates pulmonary stretch receptors, inhibits the initiation of inspiration and HFD, which probably stimulates irritant receptors, facilitates inspiration.
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