Table 2.
High GI breakfast + uninterrupted sitting | Low GI breakfast + uninterrupted sitting | High GI breakfast + activity breaks | Low GI breakfast + activity breaks | P value for main effect of sitting | P value for main effect of breakfast GI | P value for sitting × breakfast GI interaction | |
---|---|---|---|---|---|---|---|
Fasting blood glucose (mmol/L) | 4.38 (4.22, 4.53) | 4.37 (4.22, 4.52) | 4.39 (4.23, 4.54) | 4.31 (4.16, 4.46) | 0.735 | 0.535 | 0.625 |
Fasting plasma insulin (μU/mL) | 7.38 (5.80, 8.97) | 8.76 (7.17, 10.35) | 8.55 (6.96, 10.14) | 6.76 (5.17, 8.35) | 0.531 | 0.750 | 0.020 |
Positive iAUC for blood glucose (mmol/L 4 h) | 2.88 (2.49, 3.28) | 2.25 (1.85, 2.64) | 2.13 (1.74, 2.53) | 2.01 (1.61, 2.40) | 0.004 | 0.022 | 0.119 |
Positive iAUC for plasma insulin (μU/mL 4 h) | 60.31 (48.61, 72.01) | 55.05 (43.26, 66.84) | 58.09 (46.36, 69.83) | 52.03 (40.18, 63.89) | 0.554 | 0.203 | 0.932 |
Total AUC for blood glucose (mmol/L 4 h) | 20.25 (19.83, 20.68) | 19.28 (18.85, 19.70) | 19.51 (19.08, 19.94) | 18.80 (18.38, 19.22) | 0.001 | <0.001 | 0.440 |
Total AUC for plasma insulin (μU/mL 4 h) | 88.56 (76.62, 100.51) | 83.45 (71.41, 95.48) | 88.02 (76.04, 100.00) | 79.78 (67.67, 91.87) | 0.639 | 0.141 | 0.741 |
Data presented as mean (95% CI)
GI glycaemic index, iAUC incremental area under the curve, AUC area under the curve