Table 6.
Muscle substrate storage and utilization
| Biopsy at rest | Pre-exercise | 60 min exercise | ΔBreakdown (m mol (kg dry weight)−1 min−1) | |||||
|---|---|---|---|---|---|---|---|---|
| FAT | CHO | FAT | CHO | FAT | CHO | FAT | CHO | |
| Muscle glycogen(mmol (kg dry weight)−1) | 518 ± 74 | 467 ± 37 | 480 ± 29 | 683 ± 46*† | 326 ± 47‡ | 397 ± 32‡ | 2.6 ± 0.5 | 4.8 ± 0.5† |
| Muscle triacylglycerol(mmol (kg dry weight)−1) | 44 ± 6 | 36 ± 7 | 69 ± 8*† | 40 ± 6 | 62 ± 4† | 40 ± 5 | — | — |
Needle biopsy samples were taken before training (rest), and pre-exercise and after 60 min of exercise following 7 weeks of training. Values are means ±s.e.m.
P < 0.05, values higher than before training
P < 0.05, values higher after this diet than the other diet
P < 0.05, values lower than Pre-exercise.