Effect of Deep and Quiet Breathing on Pulmonary Compliance in Man*†

Persistent respiratory irregularity in patients with panic disorder

“…Patients under general anesthesia who are ventilated with normal, unvarying V t s show significant reductions in compliance and oxygen tension, both of which are reversed by a few deep breaths (Bendixen et al 1963). In normal individuals, deep breaths can increase lung volume 26 -40% (Ferris and Pollard 1960). The presence or absence of sighing can also increase or decrease dyspnea.…”

Some Effects of Restriction of Chest Cage Expansion on Pulmonary Function in Man: An Experimental Study*†

“…Certain alterations in pulmonary mechanics occur in man when an inspiration is taken from below the resting lung volume (1) and during shallow breathing (2). Some effects of a sustained reduction of the total lung capacity on respiration have been studied previously (3)(4)(5), yet the effects of chest strapping on pulmonary mechanics have received relatively little attention.…”

Variability in Mechanical Ventilation: What's All the Noise About?

“…In this early study of deep-inflation breaths, PEEP was not utilized, which may explain the marked improvement in pulmonary compliance with an intermittent augmented breath. 37 Based on these earlier studies, sigh breaths were incorporated into mechanical ventilators. However, with the development and popularization of PEEP, the sigh breath has been relegated to antiquity.…”