Figure 3From: Free Mg2+ concentration in the calf muscle of glycogen phosphorylase and phosphofructokinase deficiency patients assessed in different metabolic conditions by 31P MRSPME patterns of PFK patients during exercise and recovery. PFK I patient shows both a slower rate of PME accumulation during exercise and a slower recovery of PME after exercise compared to PFK II patient. PME signal comes from the phosphorylated monosaccharide intermediates of glycogenolysis.Back to article page