in the endurance-trained group , both fibre types were characterized by higher levels of cs ( mean for both fibre types : 48 % ) as well as of mitochondrial malate-aspartate shuttle enzymes ( mmdh : 47 % , masat : 48 % ) than in the corresponding fibre types in the untrained group , while the differences in the levels of cytoplasmic malate-aspartate shuttle enzymes ( cmdh : 13 % , casat : 16 % ) were not statistically significant .
C0026237
mitochondrial
C0010834
cytoplasmic