This paper reviews the assessment of shortness of breath in chronic ob
structive pulmonary disease (COPD). The validity criteria for evaluati
ng measures of dyspnoea are discussed and a description and critique o
f current measures of shortness of breath are offered. Across studies,
dyspnoea measures are moderately correlated with pulmonary function (
e.g. FEV1.0 and FVC), psychological function, and walking tests (6 min
walk). In addition, dyspnoea measures tend to be correlated with one
another. The need for standardisation of dyspnoea measures for researc
h and clinical practice is identified as an important objective for fu
ture work.