Table 2.
Effect of endurance training on serum and tissue biochemistry of 6 month-old LCR rats
| LCR
|
HCR S | ||
|---|---|---|---|
| S | T | ||
| %Visceral fat/body weight | 5.1 ± 0.3 | 1.9 ± 0.3b | 1.7 ± 0.2a |
| Hepatic triglyceride (μg/mg protein) | 62.0 ± 6.01 | 58.7 ± 6.85 | 41.9 ± 3.59a,c |
| Serum insulin (pm) | 493. ± 98.9 | 658 ± 190 | 141. ± 24.2a,c |
| Serum C-peptide (pm) | 2385 ± 550.8 | 3433 ± 795.6 | 968.5 ± 67.60a,c |
| Serum C-peptide/insulin molar ratio | 4.02 ± 0.57 | 4.60 ± 0.67 | 8.12 ± 1.15a,c |
| Serum FFA (mEq/liter) | 1.44 ± 0.17 | 0.52 ± 0.08b | 0.86 ± 0.16a |
| Serum triglyceride (mg/dl) | 40.3 ± 3.13 | 34.2 ± 4.17b | 27.2 ± 2.50a,c |
Male LCR (n > 8 per group; 4 months of age) were left S or T for 2 months prior to blood drawing from tail vein and tissue extraction at the time of killing for biochemical analysis. Age-matched (6-month-old) sedentary HCR were also examined. Values are expressed as mean ± sem. Of note, this set of rats was generated, fed, and trained under different housing and feeding conditions than the set in Table 1, which may account for some of the differences in body composition and hepatic triglyceride content.
a
P < 0.05 AL-HCR vs. AL-LCR.
b
P < 0.05 CR-LCR vs. AL-LCR.
c
P < 0.05 AL-HCR vs. CR-LCR.