Table 2. Blood flow determined by 133Xe washout in the peritendinous space.
| Rest | Exercise | Recovery | |
|---|---|---|---|
| Blood flow(ml(100 g tissue)−1(min−1) | 2.3 ± 0.6 | 6.1 ± 1.2* | 2.0 ± 0.3 |
| Glucose(Ca(mmol l−1) | 5.2 ± 0.1 | 4.6 ± 0.2* | 5.0 ± 0.1 |
| Lactate(Ca(mmol l−1) | 0.6 ± 0.0 | 0.7 ± 0.1 | 0.6 ± 0.1 |
| Glycerol(Ca(μmol l−1) | 61.8 ± 8.8 | 77.5 ± 12.7* | 87.0 ± 7.5** |
Blood flow was found to increase significantly
from rest to intermittent static exercise (P < 0.05), and to return to basal level during recovery (P > 0.05). These findings are in line with previous studies (Langberg et al. 1998). Concentrations of arterial plasma (Ca) glucose, lactate and glycerol were measured from samples drawn from the radial artery. Arterial glucose concentration was found to decrease significantly (*) during intermittent isometric contractions of the m. triceps surae compared with rest values (P < 0.05). No changes were found in the concentrations of lactate during the experiment (P > 0.05). Arterial glycerol concentration increased significantly (*)as a response to intermittent static exercise (P < 0.05), and continued to increase throughout the recovery period
compared with rest levels (P < 0.05).