Here is a handy little chart for you guys. As our intensity increases during training the ratio between Fats and Carbohydrates (F/C) burned changes. So from 100:0 F/C is easy to 0:100 F/C is 100% Threshold.
| RQ | Carb % | Fat % |
| 0.71 | 0.0 | 100.0 |
| 0.71 | 1.1 | 98.9 |
| 0.72 | 4.8 | 95.2 |
| 0.73 | 8.4 | 91.6 |
| 0.74 | 12.0 | 88.0 |
| 0.75 | 15.6 | 84.4 |
| 0.76 | 19.2 | 80.8 |
| 0.77 | 22.8 | 77.2 |
| 0.78 | 26.3 | 73.7 |
| 0.79 | 29.9 | 70.1 |
| 0.80 | 33.4 | 66.6 |
| 0.81 | 36.9 | 63.1 |
| 0.82 | 40.3 | 59.7 |
| 0.83 | 43.8 | 56.2 |
| 0.84 | 47.2 | 52.8 |
| 0.85 | 50.7 | 49.3 |
| 0.86 | 54.1 | 45.9 |
| 0.87 | 57.5 | 42.5 |
| 0.88 | 60.8 | 39.2 |
| 0.89 | 64.2 | 35.8 |
| 0.90 | 67.5 | 32.5 |
| 0.91 | 70.8 | 29.2 |
| 0.92 | 74.1 | 25.9 |
| 0.93 | 77.4 | 22.6 |
| 0.94 | 80.7 | 19.3 |
| 0.95 | 84.0 | 16.0 |
| 0.96 | 87.2 | 12.8 |
| 0.97 | 90.4 | 9.6 |
| 0.98 | 93.6 | 6.4 |
| 0.99 | 96.8 | 3.2 |
| 1.00 | 100.0 | 0.0 |
The Athlete Clinic 