Twelve-minute walking test for assessing disability in chronic bronchitis.

  title={Twelve-minute walking test for assessing disability in chronic bronchitis.},
  author={Clive R McGavin and S P. Gupta and G J McHardy},
  journal={British medical journal},
  volume={1 6013},
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. 


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