Table 2.
Mitochondrial respiratory flux in M. vastus lateralis and M. triceps brachii of the elite cross-country (XC) skiers and the physically active control (CON) group of this study (means ± SD).
| XC skiers |
CON |
|||
|---|---|---|---|---|
| M. vastus | M. triceps | M. vastus | M. triceps | |
| lateralis | brachii | lateralis | brachii | |
| LN | 14.3 ± 4.0 | 11.3 ± 2.9 | 13.4 ± 3.2 | 11.8 ± 4.3 |
| PETF | 19.1 ± 4.7 | 17.9 ± 4.5 | 17.1 ± 6.6 | 14.0 ± 5.3 |
| PCI | 32.0 ± 5.6 | 36.3 ± 5.9# | 28.0 ± 9.3 | 22.6 ± 8.7* |
| PCI+CII | 73.1 ± 9.2 | 85.9 ± 13.3*# | 73.7 ± 14.6 | 56.1 ± 10.5* |
| ECI+CII | 82.7 ± 12.5 | 94.0 ± 16.6# | 87.6 ± 17.3 | 61.3 ± 13.5* |
| ECII | 61.6 ± 8.8 | 65.0 ± 9.1# | 65.5 ± 11.1 | 48.1 ± 8.2* |
| ROX | 5.5 ± 3.4 | 4.2 ± 1.8 | 4.4 ± 1.8 | 4.1 ± 1.8 |
Respiratory flux expressed as mass-specific respiratory capacity (pmol⋅s-1⋅mg-1) for leak respiration in absence of adenylates (LN), fatty acid oxidative capacity (PETF), complex I respiration (PCI), complex I and II respiration combined (PCI+CII), electron transfer system capacity (ECI+CII), electron transfer system capacity of complex II alone (ECII) and residual oxygen consumption (ROX). ∗Significantly different from M. vastus lateralis, #significantly different from CON at p < 0.05.