Table 2 Skeletal muscle energy metabolism.

From: Systemic oxidative stress is associated with lower aerobic capacity and impaired skeletal muscle energy metabolism in heart failure patients

 

Control (n = 13)

CHF (n = 17)

p value

31P-MRS

Standardized PCrrest

0.88 ± 0.03

0.87 ± 0.02

0.39

Standardized PCrlowest

0.68 ± 0.09

0.48 ± 0.17

< 0.01

Muscle PCr loss

0.20 ± 0.08

0.39 ± 0.17

< 0.01

1H-MRS

IMCL content, mmol/kg/wet weight

1.6 ± 0.9

4.0 ± 2.1

< 0.01

  1. Values are mean ± SD. IMCL: intramyocellular lipid, PCr: phosphocreatine, PCrrest: PCr level at rest, PCrlowest: the lowest PCr level during plantar-flexion exercise with constant load of 20% one repetition maximum.
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