Yoga training is suggested as additional technique in pulmonary rehabilitation to improve the management of dyspnoea. However its effect on ventilatory efficiency in COPD patients is not known, whereas a slow breathing pattern was reported to improve gas exchange and to reduce dyspnoea in heart failure patients. Aim: to evaluate the effect of slow and deep yoga breathing in COPD patients (characterized by shallow, rapid breath). Methods:12 COPD patients (30%> FEV1<70%), without previous therapies and yoga practice, resident in Kathmandu (9M, 3F, age59-80yrs), were monitored (Lifeshirt System, Vivometric, CA) before and during a 30‘yoga breathing (abdominal, lower and upper thoracic mobilisation). We evaluated: tidal volume (VT), minute ventilation (VE), respiratory rate (RR), inspiratory time (Ti), total breath time (Tt), fractional inspiratory time (Ti/Tt), percent rib cage contribution to VT (RC%), phase angle (PhA), SpO2 and rapid shallow breathing index (F/VT). Results (in the table as % baseline, except SpO2): the adoption of a deeper and slower breathing during yoga induces a significant improvement in ventilatory efficiency, as demonstrated by the significant increase in SpO2 and no change in VE. Short-term training in yoga thus induces favorable respiratory changes in COPD.
Yoga breathing improves ventilatory efficiency in COPD patients
POMIDORI, Luca;CAMPIGOTTO, FEDERICA;COGO, Annaluisa
2007
Abstract
Yoga training is suggested as additional technique in pulmonary rehabilitation to improve the management of dyspnoea. However its effect on ventilatory efficiency in COPD patients is not known, whereas a slow breathing pattern was reported to improve gas exchange and to reduce dyspnoea in heart failure patients. Aim: to evaluate the effect of slow and deep yoga breathing in COPD patients (characterized by shallow, rapid breath). Methods:12 COPD patients (30%> FEV1<70%), without previous therapies and yoga practice, resident in Kathmandu (9M, 3F, age59-80yrs), were monitored (Lifeshirt System, Vivometric, CA) before and during a 30‘yoga breathing (abdominal, lower and upper thoracic mobilisation). We evaluated: tidal volume (VT), minute ventilation (VE), respiratory rate (RR), inspiratory time (Ti), total breath time (Tt), fractional inspiratory time (Ti/Tt), percent rib cage contribution to VT (RC%), phase angle (PhA), SpO2 and rapid shallow breathing index (F/VT). Results (in the table as % baseline, except SpO2): the adoption of a deeper and slower breathing during yoga induces a significant improvement in ventilatory efficiency, as demonstrated by the significant increase in SpO2 and no change in VE. Short-term training in yoga thus induces favorable respiratory changes in COPD.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
