Table 1.
The tension-time indexes for static contraction and tendon stretch in rats whose hindlimbs were freely perfused and in rats whose femoral artery had been ligated 72 h before the start of the experiment before and after intra-arterial tempol (10 mg) or tiron (0.2 g/kg) injection
| TTI, kg · s |
|||
|---|---|---|---|
| n | Before | After | |
| Tempol | |||
| Freely perfused group | |||
| Static contraction | 10 | 18.4 ± 2.8 | 17.4 ± 3.0 |
| Tendon stretch | 8 | 17.7 ± 0.4 | 18.9 ± 0.5 |
| Ligated (72 h) group | |||
| Static contraction | 9 | 16.7 ± 2.9 | 13.9 ± 2.7 |
| Tendon stretch | 8 | 18.1 ± 0.5 | 19.4 ± 0.4* |
| Tiron | |||
| Freely perfused group | |||
| Static contraction | 6 | 20.1 ± 1.0 | 21.5 ± 1.0 |
| Tendon stretch | 6 | 23.5 ± 1.3 | 25.0 ± 1.4 |
| Ligated (72 h) group | |||
| Static contraction | 6 | 17.0 ± 3.5 | 18.3 ± 3.4 |
| Tendon stretch | 6 | 21.6 ± 4.8 | 24.8 ± 4.0 |
Values are means ± SE, n; no. of rats. TTI, tension-time index.
*
P < 0.05, after vs. before tempol.