Table 2.

Comparison of body composition and GDF-11. Body composition and GDF-11 concentration were compared in exercised and sedentary animals from 8-24 months of age.

Variable	Sedentary 8-24 months	Exercise LIERLT 8-24 months	Probability
BMI	0.727 ± 0.098	0.688 ± 0.085	0.165
Strength	33.84 ± 10.03	45.24 ± 9.41	0.0003
Creatinine	0.54 ± 0.22	0.72 ± 0.08	0.0007
GDF-11	543.06 ± 171.96	623.30 ± 142.56	0.031
%FFBFM	65.26 ± 6.31	70.04 ± 7.07	0.021
%Fat	30.92 ± 6.53	25.94 ± 7.21	0.019
%BMC	3.80 ± 0.28	4.01 ± 0.28	0.014

The values represented the mean ± SE of independent experiments (n = 25). Comparisons were made using a Student t-test. The differences between the experimental groups with respect to the sedentary group are marked, and the significance is specified.