Hereditary metabolic myopathy with paroxysmal myoglobinuria due to abnormal glycolysis

of them determinations were made of the total haemo- globin, blood volume, and heart volume, as well as of lung function. Further, the concentration of the blood lactate during rest and exercise and the haemodynamics in each case was examined by catheterization of the heart and of peripheral vessels (see under Methods). In three cases (B2, C3, and D1) only some of these examinations were performed. Electromyographic examination at rest was done in nine cases (A1-4, Bi, Cl, D2-3, El) and both before and after physical exercise in eight (A2-4, Bl, 361 Protected by copyright.