HRV biofeedback appears to be promising as an adjunctive treatment for asthma, and it appears to maintain the condition of asthma patients with a reduced dose of inhaled steroids. A decrease of ...

HRV biofeedback was given using a physiograph (model I-330; J&J Engineering; Poulsbo, WA). ECG data were collected from the right arm and left leg, and were digitized at 512 Hz. EEG biofeedback ...