Table 1.
Select morphological characteristics and voluntary wheel running distance. Data are presented as the mean (standard deviation). aP < 0.05 vs. young sedentary; bP < 0.05 vs. young sedentary and old sedentary
| Young Sed | Old Sed | Old VWR | |
|---|---|---|---|
| Body mass (g) | 30.1 (1.9) | 31.6 (2.0) | 29.8 (2.3) |
| Heart mass (mg) | 155.1 (19.6) | 187.7 (27.4)a | 219.1 (66.3)a |
| Liver mass (g) | 1.63 (0.24) | 2.14 (0.79) | 1.89 (0.38) |
| Visceral adipose mass (mg) | 597.0 (163.2) | 450.0 (137.2)a | 181.1 (85.2)b |
| Subcutaneous adipose mass (mg) | 273.7 (59.6) | 189.1 (51.1)a | 132.9 (55.0)b |
| Quadriceps mass (mg) | 348.2 (42.8) | 284.4 (24.2)a | 252.3 (47.5)a |
| Gastrocnemius mass (mg) | 314.1 (25.1) | 250.5 (22.5)a | 222.4 (51.4)a |
| Soleus mass (mg) | 18.9 (4.8) | 14.5 (3.2)a | 14.3 (7.1)a |
| Average wheel running distance (m/24 h) | n/a | n/a | 2935.9 (1642) |
n/a not applicable