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. 2014 Oct 8;9(10):e108706. doi: 10.1371/journal.pone.0108706

Table 1. Skeletal muscle metabolites - 13C NMR spectroscopy.

Subjects Glycogen (mM) Total Creatine (mM) Glycogen/Total Creatine
MD 192.5±15.1 85.6±22.5 2.3±0.6
PFKD 202.1 124.2 1.6
Controls 75.7±13.6 77.1±8.3 1.0±0.3

Values are expressed individually or group means ± SD. MD, McArdle disease; PFKD, phosphofructokinase deficiency; mM, millimoles per liter.