Table 3.
Capillary density in the arm (triceps brachii) and leg (vastus lateralis) muscles of elite cross-country skiers (n = 10).
| #cap/fiber | cap/mm2 | Type 1 | Type 2a | Type 2x | Average | |
|---|---|---|---|---|---|---|
| Leg | 2.8 ± 0.1 | 437 ± 22 | 5.9 ± 0.3 | 5.9 ± 0.2 | 5.1 ± 0.3# | 5.8 ± 0.8 |
| Arm | 3.0 ± 0.2 | 394 ± 14 | 5.8 ± 0.3 | 6.7 ± 0.3∗ | 6.0 ± 2.0∗ | 6.3 ± 0.3 |
Capillary density was assessed immunohistochemically. Number of capillaries is given in: total number of capillaries per total number of fibers (#cap/fiber); total number of capillaries per muscle area (cap/mm2), and number of capillaries around each fiber for each fiber type and average for all fibers. ∗Significantly different from the corresponding value for leg muscle; #significantly different from the corresponding values for the other fiber types.