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Fisioterapia e Pesquisa
versão impressa ISSN 1809-2950
CESTARO, Evelise Juliane et al. Factors that influence physical capacity of patients with chronic obstructive pulmonary disease. Fisioter. Pesqui. [online]. 2010, vol.17, n.4, pp. 332-336. ISSN 1809-2950. http://dx.doi.org/10.1590/S1809-29502010000400009.
The purpose of this study was to verify to what extent certain factors may influence physical capacity (as assessed by the six-minute walk test, 6MWT) of patients with chronic obstructive pulmonary disease (COPD); factors considered were age, forced expiratory volume in one second (FEV1), maximum voluntary ventilation (MVV), and distance covered in the symptom-limited cardiopulmonary exercise test (CET). Subjects were 18 male elderly (mean age 69.6±8.4 years) with II- and III-degree COPD diagnosis, submitted to spirometry and the 6MW and CE tests. Moderate significant correlations were found between distance walked at the 6MWT and FEV1 (r=0.62), MVV (r=0.50), and distance walked in CET (r=0.67); no correlation was found with age. Therefore, it may be said that the degree of airway obstruction, endurance of respiratory muscles, and maximum exertion capacity may influence physical capacity of subjects with II- and III-degree COPD when performing a daily activity such as walking.
Palavras-chave : Maximal voluntary ventilation; Physical exertion; Pulmonary disease, chronic obstructive.