Tracheal sound parameters of respiratory cycle phases show differences between flow-limited and normal breathing during sleep.
Kulkas A, Huupponen E, Virkkala J, Saastamoinen A, Rauhala E, Tenhunen M, Himanen SL.
Physiol Meas. 2010 Mar;31(3):427-38. doi: 10.1088/0967-3334/31/3/010. Epub 2010 Feb 11.
PMID:20150689
Effects of non-fatiguing respiratory muscle loading induced by expiratory flow limitation during strenuous incremental cycle exercise on metabolic stress and circulating natural killer cells.
Rolland-Debord C, Morelot-Panzini C, Similowski T, Duranti R, Laveneziana P.