Reproducibility of maximal oxygen uptake in silicotic subjects who are co-operative.
D000328:Adult; D005080:Exercise Test; D006801:Humans; D008875:Middle Aged; D010101:Oxygen Consumption; D010349:Patient Compliance; D011009:Pneumoconiosis / Q000503:physiopathology*; D012129:Respiratory Function Tests; D014938:Work Capacity Evaluation