Breathing retraining for African-American adolescents with asthma: a pilot study of a school-based randomized controlled trial.

Objective: Asthma affects approximately seven million children/adolescents in the USA, with African-American children disproportionately affected. Breathing retraining techniques have been shown to improve asthma outcomes in adults, though research in youth is limited. The purpose of this pilot study was to test the feasibility and preliminary efficacy of a school-based randomized controlled trial of breathing retraining for asthma outcomes and anxiety symptoms in a sample of urban, African-American adolescents.