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Table 2 Changes in muscle metabolites pre/post exercise

From: The reproducibility of measurements of intramuscular magnesium concentrations and muscle oxidative capacity using 31P MRS

   Rest
Pi/PCr
Rest
PCr/ATP
Rest
pH
End
exercise
PCr (%)
End exercise
pH
Pre 1 Mean 0.089 4.24 7.07 46.1 6.94
  SD 0.029 0.66 0.03 11.6 0.07
Pre 2 Mean 0.092 4.68 7.06 52.0 6.97
  SD 0.012 0.98 0.02 14.0 0.10
Post 1 Mean 0.080 5.14 7.06 48.9 6.98
  SD 0.017 0.98 0.02 14.0 0.10
Post 2 Mean 0.092 5.12 7.05 43.5 6.98
  SD 0.023 1.08 0.02 7.8 0.08
ICC pre 1&2 0.13 0.79 .021 0.87 .064
COV% pre 1&2 15.1 8.60 0.21 11.1 0.79