[Contribution to the study of muscular function in rheumatic diseases].
D001172:Arthritis, Rheumatoid / Q000503:physiopathology*; D005260:Female; D005356:Fibromyalgia / Q000503:physiopathology*; D006801:Humans; D008297:Male; D009132:Muscles / Q000503:physiopathology*; D012216:Rheumatic Diseases / Q000503:physiopathology*