Functional training improves quality of life in chronic obstructive pulmonary disease
Abstract Introduction: Chronic obstructive pulmonary disease (COPD) is characterized by limited airflow that generates impacts on the respiratory and musculoskeletal system, and on quality of life, which can be treated by exercises. Objective: To evaluate the effects of functional training on peripheral muscle strength, mobility and balance and quality of life in patients with COPD. Methods: Quasi experimental, prospective, non-randomized study with convenience sample. Patients with COPD were submitted to a 12-week functional training composed of 10 exercises similar to the activities of daily life. Anthropometric varia-bles and pulmonary function tests were assessed at baseline. Quality of life (Saint George Questionnaire), muscular strength (handgrip and lumbar strength test), mobility and balance capacities (Incremental Shuttle Walking, Stair Climb, Time Up and Go and BERG balance scale) tests were evaluated before and after the training. Statistical tests by comparison were used (p < 0.05). Results: Fourteen patients, 10 (71%) females, with a mean age of 61.71 ± 10.07 years, forced expiratory volume in first second and forced vital capacity relation of 58.78 ± 7.54 participated in this study. There was an improvement in quality of life [symptoms:73.90 (38.02-87.98) to 28.91 (23.50-32.23); activity: 21.40 ± 5.72 to 27.96 ± 7.47; total: 78.33 [36.39-82.99) to 20.22 [15.94-34.33] with maintenance of functional and musculoskeletal conditions. Conclusion: Functional training may be an alternative for maintaining health conditions and improving the quality of life of patients with COPD. New therapeutic proposals with an increased training volume, duration, and periodicity may promote functional, and musculoskeletal repercussions.