This latest research, published in Rehabilitation Nursing (PubMed Epub ahead of print, 8 Jan 2014) used POWERbreathe inspiratory muscle training.
Comparing Inspiratory Resistive Muscle Training with Incentive Spirometry on Rehabilitation of COPD Patients
Heydari A, Farzad M, Ahmadi Hosseini SH.
“To examine the effect of incentive spirometry in pulmonary rehabilitation of chronic obstructive pulmonary disease (COPD) patients and compare its efficacy with inspiratory resistive muscle training (IMT) technique.”
In within-group analysis… “both techniques significantly improved the mean of all respiratory function tests.”
In between-group analysis… “the difference between the two groups was not significant (p = .459). There were no significant differences between the two techniques for FEV1 (p = .653) and FEV1/FVC (p = .936).”
“According to the present study, in spite of superiority of IMT technique for improving the two pulmonary parameters (MVV and PImax), using incentive spirometry could be a good complementary method for pulmonary rehabilitation in COPD patients.”
Read the Abstract on PubMed.