31p-nmr spectra were obtained from the quadriceps femoris muscle ( at rest and after aerobic exercise ) of the 7 cases of mitochondrial myopathies ( 2 cases of mitochondrial encephalomyopathy and lactic acidosis ( mela ) , 1 case of myoclonus epilepsy with regged red fiber , 1 case of kearns-sayre syndrome , 3 cases of progressive external ophthalmoplegia ) , using superconducting whole body mr ( magnetom , siemens ) .
C0162670
mitochondrial myopathies
C0162674
progressive external ophthalmoplegia