Table 1 Predicted correlations between31P-MRS measures of skeletal muscle biology and whole-body physiology

From: Integrating muscle cell biochemistry and whole-body physiology in humans:31P-MRS data from the InSight trial

x

y

Direction

Hypothesis

Refs

Hypothesis supported?

PCr1/2t

VO2max

—

Mitochondrial function will positively correlate with both absolute and mass-corrected VO2max

21, 23

Yes (p < .0001)

Qmax, ATPmax

VO2max

+

   

Resting [PCr]

Delta efficiency

—

Resting muscle [PCr] will negatively correlate with delta efficiency

2, 26, 34

Yes (p = .046)

PCr1/2t

Resting VO2, TDEE

—

Mitochondrial function will positively correlate with both resting VO2 and total daily energy expenditure

31

TDEE: Yes (p = .032)

Qmax, ATPmax

Resting VO2, TDEE

+

  

VO2: No

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