TABLE 2

Kinetic Parameters for 3-Tissue 5K Model

Muscle area	K₁	k₂	k₃	k₄	k₅
Gluteal
Average	0.046	0.585	0.119	0.081	0.019
STD	0.015	0.149	0.037	0.024	0.004
Quadriceps
Average	0.045	0.635	0.084	0.070	0.028
STD	0.015	0.217	0.031	0.031	0.007

Values are expressed as mean and SD of test–retest scans in all individuals.