Characteristics of trained and untrained rats
| Trained | Untrained | Control | |||||
|---|---|---|---|---|---|---|---|
| Group 1 | Group 2 | Group 3 | Group 4 | Group 5 | Group 6 | ||
| Values are means (SE) for each group. BW, body weight; ET, exercise time; HV, heart volume; HW, heart weight; SW, soleus muscle weight; WR, work rate. | |||||||
| *Heavy exercise (40 m/min); †moderate exercise (20 m/min). | |||||||
| Age (months) | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 2.00 | |
| BW (wt, mg) | 336 (44) | 335.2 (48) | 321.6 (26) | 304 (44) | 315 (60) | 191.1 (33) | |
| SW (wt, mg) | 205 (26.91) | 209.4 (20.77) | 196.2 (15.98) | 185.4 (27.24) | 192.2 (36.95) | 110 (10.33) | |
| HW (wt, g) | 1.29 (0.21) | 1.35 (0.16) | 1.11 (0.09) | 1.14 (0.13) | 1.11 (0.28) | 0.68 (0.06) | |
| HV (ml) | 2.13 (0.20) | 2.22 (0.22) | 1.13 (0.15) | 1.15 (0.19) | 1.12 (0.22) | 0.76 (0.13) | |
| ET (min) | 20* | 40† | 4.73 (1.67)* | 35.57 (3.73)† | – | – | |
| Vo2 (ml/kg/min) | 23.71 (3.11) | 18.98 (2.77) | 22.70 (1.85) | 17.22 (2.53) | – | – | |
| WR (kg/m/min) | 28.09 (3.68) | 28.03 (4.09) | 6.42 (2.55) | 22.55 (3.85) | – | – | |