Table 2.
Comparisons of CHO oxidation source during the third hour
| CHO Ox (g) | Difference in CHO oxidation (g) | ||
|---|---|---|---|
| Low | Med | ||
| Exogenous CHO | |||
| 80 g h−1 | 81.6 ± 17.0 | ||
| 90 g h−1 | 82.9 ± 11.2 | 1.3, − 9.4 to 12.1 ES = 0.09, P = 1.00 |
|
| 100 g h−1 | 91.1 ± 12.3 | 9.6, 1.4 to 17.7 ES = 0.64, P = 0.10 |
8.2, 2.1 to 18.6 ES = 0.70, P = 0.39 |
| Endogenous CHO | |||
| 80 g h−1 | 100.7 ± 27.1 | ||
| 90 g h−1 | 94.5 ± 32.6 | 6.2, − 22.8 to 10.5 ES = 0.21, P = 1.00 |
|
| 100 g h−1 | 108.0 ± 18.8 | 7.3, − 9.0 to 23.8 ES = 0.32, P = 1.00 |
13.5, − 3.1 to 30.2 ES = 0.51, P = 0.37 |
| Plasma glucose | |||
| 80 g h−1 | 90.6 ± 15.0 | ||
| 90 g h−1 | 92.0 ± 8.5 | 1.4, − 6.4 to 9.1 ES = 0.11, P = 1.00 |
|
| 100 g h−1 | 97.6 ± 14.6 | 7.0, − 1.3 to 15.3 ES = 0.47, P = 0.34 |
5.6, − 3.3 to 14.5 ES = 0.47, P = 0.67 |
| Liver glycogen | |||
| 80 g h−1 | 9.0 ± 7.6 | ||
| 90 g h−1 | 9.1 ± 7.1 | 0.1, − 4.3 to 4.3 ES = 0.00, P = 1.00 |
|
| 100 g h−1 | 6.4 ± 5.2 | − 2.6 − 6.8 to 1.6 ES = 0.40, P = 0.70 |
− 2.6, − 5.6 to 0.4 ES = 0.42, P = 0.31 |
| Muscle glycogen | |||
| 80 g h−1 | 91.6 ± 24.6 | ||
| 90 g h−1 | 85.4 ± 29.3 | 6.2, − 23.5 to 11.1 ES = 0.23, P = 1.00 |
|
| 100 g h−1 | 101.6 ± 16.6 | 10.0, − 5.1 to 25.0 ES = 0.47, P = 0.61 |
16.1, 0.9 to 31.4 ES = 0.68, P = 0.16 |
Values given are comparisons of CHO oxidation from various sources over the third hour of the 3 h ride between 80 g h−1, 90 g h−1 and 100 g h−1 glucose: fructose ingestion. [1st line: mean ± s.d., absolute difference between conditions with associated 95% confidence intervals; 2nd line: Cohen’s d effect size and P value (ANOVA with Bonferroni post hoc comparison)]