TY - JOUR T1 - ََComparative efficacy of two breath training methods and lower extremity aerobic exercise on amount of respiratory ventilation and quality of life of patients with chronic bronchitis TT - بررسی مقایسه‌ای تأثیر دو روش تمرینات تنفسی و ورزش هوازی اندام‌های تحتانی بر نسبت FEV1/FVC و کیفیت زندگی بیماران مبتلا به برونشیت مزمن مراجعه‌کننده به مراکز درمانی توحید و بعثت شهرستان سنندج JF - HBI_Journals JO - HBI_Journals VL - 14 IS - 1 UR - http://sjku.muk.ac.ir/article-1-152-en.html Y1 - 2009 SP - 23 EP - 32 KW - Breathing training KW - Lower extremity aerobic exercise KW - FEV1/FVC KW - quality of life KW - Chronic bronchitis N2 - Background and Aim: Chronic bronchitis is clinically characterized by productive cough for over three months during two consecutive years. Chronic obstructive pulmonary disease includes both emphysema and chronic bronchitis and is the fourth leading cause of death in females and fifth in males. The aim of this study was to compare the effect of two methods of pulmonary rehabilitation including breath training and lower extremity aerobic exercise on ratio of forced expiratory volume in one second to forced vital capacity (FEV1/FVC) and quality of life of the patients with chronic bronchitis. Materials and methods: This study was an experimental randomized control trial. 71 patients with moderate to severe chronic bronchitis enrolled into the study. 24 patients used breathing exercised, 24 patients performed lower extremity aerobic exercise for pulmonary rehabilitation and other 23 cases were in control group. The duration of the study was 8 weeks. Data were analyzed by means of paired t test, ANOVA test and post hoc LSD. Results: In this study mean ratios of FEV1/FVC and quality of life scores showed no significant differences between the breath training and control groups (p>0.05). But comparison of the mean ratios of FEV1/FVC and the mean values of quality of life scores showed significant differences in the patients who had performed lower extremity aerobic exercise compared to control group (p M3 ER -