Measuring Ventilatory Activity with Structured Light Plethysmography (SLP) Reduces Instrumental Observer Effect and Preserves Tidal Breathing Variability in Healthy and COPD

• Published in: Frontiers in physiology Vol. 8; p. 316
• Main Authors: Niérat, Marie-Cécile, Dubé, Bruno-Pierre, Llontop, Claudia, Bellocq, Agnès, Layachi Ben Mohamed, Lila, Rivals, Isabelle, Straus, Christian, Similowski, Thomas, Laveneziana, Pierantonio
• Format: Journal Article
• Language: English
• Published: Switzerland Frontiers 18.05.2017; Frontiers Media S.A
• Subjects: breathing pattern; breathing variability; COPD; healthy; Human health and pathology; instrumental/observer effect; Life Sciences; Physiology; plethysmography; Tissues and Organs; breathing pattern; instrumental/observer effect; plethysmography; healthy; COPD; breathing variability

The use of a mouthpiece to measure ventilatory flow with a pneumotachograph (PNT) introduces a major perturbation to breathing ("instrumental/observer effect") and suffices to modify the respiratory behavior. Structured light plethysmography (SLP) is a non-contact method of assessment of b...