Effect of inspiratory muscle training on exercise performance and quality of life in patients with chronic obstructive pulmonary disease

摘要: Abstract Background Chronic obstructive pulmonary disease (COPD) is associated with skeletal muscle dysfunction. This study aimed to evaluate effectiveness of inspiratory training (IMT) as a part exercise in COPD patients. Methods Sixty male patients were assigned 3 groups; twenty each group. In addition medical treatment given for all patients; group A received peripheral muscles plus IMT at an intensity that increased from 30% 60% their maximal pressure (P Imax ). Patients B alone, and C; they no training. All underwent clinical evaluation, chest X-ray, electrocardiogram, body mass index, spirometry. Outcome measures the form respiratory strength [P , expiratory Emax )], dyspnea, performance (six minutes walk test) quality life [BODE index St. George’s Respiratory questionnaire (SGRQ-C)] carried out entry, after 4 8 weeks. Results led significant improvement P Emax, 6-min walking distance (6MWD) compared alone. Both alone improved BODE SGRQ-C without differences between 2 groups. Conclusion For 6MWD; provides additional benefits However, this did not translate into dyspnea what achieved by