Intramuscular Adipose Tissue, Sarcopenia, and Mobility Function in Older Individuals

Table 3

Hierarchical regression results. six minute walk (6 MW), stair ascent (stair A), stair descent (stair D), timed up and go (TUG).

Variable	Regression coefficient (95% CI)	𝑃-value	Part correlation	𝑅^2
6MW				34.6
BMI	−0.15 (−7.5–0.86)	0.12	−0.15
Strength	0.27 (0.14–0.76)	0.005	0.23
IMAT	−0.31 (−9.1–−2.20)	0.002	−0.30
Lean	0.28 (0.44–2.44)	0.005	0.23
Stair A				45.1
BMI	−0.07 (−0.16–0.07)	0.46	−0.05
Strength	−0.55 (−0.04–−0.02)	0.001	−0.54
IMAT	0.47 (0.16–0.36)	0.001	0.39
Stair D				37.4
BMI	−0.09 (−0.20–0.07)	0.36	−0.07
Strength	−0.49 (−0.04–−0.02)	0.001	−0.49
IMAT	0.45 (0.16–0.39)	0.001	0.37
TUG
BMI	−0.003 (−0.13–0.12)	0.97	−0.01	26.5
Strength	−0.42 (−0.03–−0.01)	0.001	−0.42
IMAT	0.34 (0.07–0.28)	0.001	0.28