title: Twelve-minute walking test for assessing disability in chronic bronchitis.
abstract: The distance covered in 12 minutes' walking was used to test exercise tolerance in chronic bronchitis. The distance covered bore a poor relation to the forced expiratory volume in 1 second but a significant relation to the forced vital capacity and the maximum oxygen consumption and ventilation on a bicycle ergometer. The test may be a simple practical guide to everyday disability in chronic bronchitis.
mesh_terms: D000328:Adult; D000368:Aged; D001991:Bronchitis / Q000503:physiopathology*; D004185:Disability Evaluation; D005541:Forced Expiratory Volume; D006801:Humans; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion; D013997:Time Factors; D014797:Vital Capacity