Intermuscular Adipose Tissue Is Muscle Specific and Associated with Poor Functional Performance

Table 4

Correlation matrix.

	IMAT vol	6 MW	PPT	Stair POW	Muscle Vol	IMAT/Mus Vol
BMI	0.31*	−0.18	0.01	0.21	0.49*	0.08
IMAT vol		−0.47*	−0.36*	−0.18	−0.32*	0.93*
6 MW			0.79*	0.58*	0.25	−0.48*
PPT				0.60*	0.24	−0.44*
Stair Pow					0.51*	−0.30*
Muscle vol						−0.35*

*Indicates significance (𝑃<0.05).
IMAT: intermuscular adipose tissue volume; 6 MW: six-minute walk distance; PPT: physical performance test (9 items); Stair Pow: stair power; Muscle Vol: calf muscle volume; IMAT/MusVol: ratio of IMAT/muscle volume in the calf.