Table 2.
Analysis of continuous glucose monitoring measurements during the rest and exercise day for both LV-HIIE and CMIE sessions.
| Variable | LV-HIIE | CMIE | ||
|---|---|---|---|---|
| Rest day | Exercise day | Rest day | Exercise day | |
| 24 h MEASUREMENT (mmol/l) | ||||
| Average blood glucose | 4.7 ± 0.1 | 4.5 ± 0.1* | 5.3 ± 0.3 | 5.1 ± 0.3* |
| Total AUC | 6438 ± 192 | 6077 ± 214* | 7174 ± 506 | 6847 ± 475* |
| Peak glucose concentration | 7.2 ± 0.3 | 6.5 ± 0.3* | 7.9 ± 0.6 | 7.2 ± 2.0* |
| 2 h PPG (mmol/l) | ||||
| Breakfast | 5.1 ± 0.2 | 5.3 ± 0.3 | 6.1 ± 0.5 | 5.4 ± 0.4* |
| Breakfast (1st h) | 5.4 ± 0.2 | 5.4 ± 0.2 | 6.2 ± 0.4 | 5.8 ± 0.4 |
| Breakfast (2nd h) | 4.9 ± 0.2 | 4.5 ± 0.2* | 5.9 ± 0.6 | 5.0 ± 0.4* |
| Lunch | 5.0 ± 0.2 | 5.1 ± 0.1 | 5.9 ± 0.3 | 5.7 ± 0.3 |
| Dinner | 5.2 ± 0.3 | 4.6 ± 0.2* | 6.2 ± 0.4 | 5.7 ± 0.3* |
| 2 h PPP (mmol/l) | ||||
| Breakfast | 6.1 ± 0.2 | 6.3 ± 0.3 | 7.4 ± 0.7 | 6.8 ± 0.6 |
| Lunch | 5.7 ± 0.2 | 5.9 ± 0.3 | 7.1 ± 0.4 | 6.8 ± 0.5 |
| Dinner | 5.9 ± 0.4 | 5.2 ± 0.3* | 7.1 ± 0.5 | 6.5 ± 0.4* |
| 2 h iPPP (mmol/l) | ||||
| Breakfast | 1.6 ± 0.2 | 1.7 ± 0.3 | 2.4 ± 0.4 | 1.9 ± 0.3 |
| Lunch | 1.5 ± 0.2 | 1.6 ± 0.3 | 2.5 ± 0.3 | 2.0 ± 0.4 |
| Dinner | 1.5 ± 0.3 | 1.1 ± 0.2* | 2.1 ± 0.3 | 1.8 ± 0.3* |
| 2 h AUC (mmol/l·2 h) | ||||
| Breakfast | 617 ± 25 | 609 ± 29* | 730 ± 63 | 655 ± 49* |
| Lunch | 601 ± 25 | 610 ± 16 | 711 ± 36 | 709 ± 32 |
| Dinner | 629 ± 34 | 569 ± 23* | 748 ± 53 | 687 ± 41* |
| 2 h iAUC (mmol/l·2 h) | ||||
| Breakfast | 88.6 ± 11.9 | 80.5 ± 18.6* | 105.0 ± 13.7 | 71.3 ± 14.0* |
| Lunch | 107.7 ± 16.2 | 93.3 ± 11.7 | 173.1 ± 20.8 | 153 ± 27.7 |
| Dinner | 107.2 ± 18.0 | 75.9 ± 20.4* | 154.3 ± 30 | 129.4 ± 26.9* |
| GLYCEMIC VARIABILITY | ||||
| MAGE | 2.2 ± 0.2 | 2.2 ± 0.2 | 2.6 ± 0.3 | 2.2 ± 0.3 |
| SD | 0.7 ± 0.1 | 0.7 ± 0.1 | 0.8 ± 0.1 | 0.8 ± 0.1 |
| %CV | 15.1 ± 1.2 | 15.7 ± 1.6 | 15.58 ± 1.3 | 14.58 ± 1.7 |
| % of 24 h day at >7 mmol/lδ | 2.7 ± 0.9 | 0.2 ± 0.2* | 11.4 ± 6.3 | 8.5 ± 5.3* |
Values are mean ± SEM (n = 13 in both LV-HIIE and CMIE groups for CGM data).
p < 0.05 are significantly different to the rest day. δ-7 out of 13 participants in the LV-HIIE group and 10 out of 13 in the CMIE group exhibited glucose values higher than 7 mmol/L. LV-HIIE, low-volume high-intensity interval exercise; CMIE, continuous moderate-intensity exercise; MAGE, 24-h mean amplitude of glycemic excursion; SD, 24-h glycemic standard deviation. %CV, 24-h glucose percentage coefficient of variation; PPG, postprandial glucose; PPP, peak postprandial glucose; iPPP, incremental peak postprandial glucose; AUC, area under the glucose curve; iAUC, incremental area under the glucose curve.