[The contribution of effort tests in the evaluation of factors related to dyspnea in pneumonology].

Forty nine patients suffering from respiratory disorders underwent an exercise test carried out on a bicycle ergometer (n = 45) or by walking rapidly on flat or inclined ground (n = 4). The respiratory restrictions on effort were correlated with a degree of dyspnoea (stages 1 to 4) established by a questionnaire. The analysis of the effort test had consequences of practical importance: in effect, in this study, nearly half the patients benefited from advice orientated in particular towards the level of activity which would be suitable for them, and to reduction in their weight.