Journal of cardiopulmonary rehabilitation and prevention
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J Cardiopulm Rehabil Prev · Jul 2007
Randomized Controlled TrialEfficacy of pursed-lips breathing: a breathing pattern retraining strategy for dyspnea reduction.
Breathing pattern retraining is frequently used for exertional dyspnea relief in adults with moderate to severe chronic obstructive pulmonary disease. However, there is contradictory evidence to support its use. The study objective was to compare 2 programs of prolonging expiratory time (pursed-lips breathing and expiratory muscle training) on dyspnea and functional performance. ⋯ Pursed-lips breathing provided sustained improvement in exertional dyspnea and physical function.