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. Author manuscript; available in PMC: 2018 Oct 4.

Published in final edited form as: J Rare Dis Res Treat. 2017;2(2):55–62.

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Respiratory Inductance Plethysmography (RIP) tracings demonstrating thoracoabdominal motion during synchronous (phase angle = 4 degrees) and less synchronous (phase angle =17 degrees) breathing. The Lissajous figures (Konno-Mead Loops; red outlines) show the phase shift and the red arrow indicates the phase angle between the rib cage and abdominal compartments.