Researchers evaluated three step-up therapies in 165 children (age range, 6–17 years) whose asthma was poorly controlled after 2 to 8 weeks of low-dose fluticasone therapy (100 µg twice daily).

Study Objectives: We evaluated the effectiveness of heart rate variability (HRV) biofeedback as a complementary treatment for asthma. Patients: Ninety-four adult outpatient paid volunteers with ...