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[Purpose] The purpose of this study was to explain the difference in characteristics of exercise limitation factors of patients with chronic obstructive pulmonary disease (COPD) and sequelea of pulmonary tuberculosis (PTB-s) . [Subjects] The subjects were 29 patients with COPD (28 males, 1 female; 70.6 8.0 years) and 8 patients with PTB-s (5 males, 3 females; 69.5 ± 9.5 years). [Method] We conducted the cardiopulmonary exercise test. This test was conducted using a respiratory metabolism measuring device with a electronically braked cycle ergometer and simultaneous breath-by-breath analysis of expired gas. Main outcome measures were oxygen uptake (peak VO2), minute ventilation (peak VE), oxygen equivalent (peak VE/VO2), carbon dioxide equivalent, (peak VE/VCO2), and oxygen pulse (peak O2 pulse) at peak exercise. [Results] There were no significant differences between peak VO2 and peak VE/VO2 and peak VE/VCO2. The Peak O2 pulse, an index of circulatory ability, was 6.6 ± 1.8 ml/beats/min in COPD and 4.5 ± 1.4 ml/beats/min in PTB-s (p<0.01), showing that the reaction of the circulatory system to exercise was poor in both groups. [Conclusions] We suggest that the difference in characteristics of exercise limitation factors of patients with COPD and PTB-S are circulatory ability. Studies of the synergistic effects of pharmacotherapy and kinesitherapy on the circulatory system may enable the establishment of a rehabilitation program based on disease-specific characteristics of PTB-s.

journal of physical therapy science

Exercise Limitation Factors of Patients with Chronic Respiratory Failure: a Comparison of Chronic Obstructive Pulmonary Disease and Sequelae of Pulmonary Tuberculosis