Table 3.

Baseline muscle size predicts muscle growth regardless of primary outcome measure

Baseline Variable	Postvariable	Correlation, r	n	Lower 95% CI	Upper 95% CI	P Value	Sex Adjusted β	AdjustedP Value
CT muscle area, cm2	% Change in CT muscle area	−0.18	44	−0.45	0.13	0.25	−0.75	0.002
Bilateral thigh muscle mass normalized, kg/cm	% Change in bilateral thigh muscle mass normalized	−0.26	48	−0.51	0.02	0.07	−0.47	0.04
Mean fCSA, µm2	% Change in mean fCSA	−0.42	32	−0.67	−0.09	0.02	−0.76	0.003
Type 1 fCSA, µm2	% Change in Type 1 fCSA	−0.51	32	−0.73	−0.20	0.003	−0.73	0.001
Type 2 fCSA, µm2	% Change in Type 2 fCSA	−0.27	32	−0.56	0.09	0.14	−0.43	0.12

CI, confidence interval; CT, computed tomography; fCSA, fiber cross-sectional area.