Effects of a 10-Week Exercise and Nutritional Intervention with Variable Dietary Carbohydrates and Glycaemic Indices on Substrate Metabolism, Glycogen Storage, and Endurance Performance in Men: A Randomized Controlled Trial

Sports Medicine - Open

Table 4 Results from metabolic outcomes

group	T-0	T-10	Time x Group	Time effect	Group effect at T-10
AUC RER
LOW-GI	0.61 ± 0.04	0.59 ± 0.04^c	0.026	0.122	0.002
HIGH-GI	0.61 ± 0.04	0.61 ± 0.04^c		0.915
LCHF	0.59 ± 0.04	0.55 ± 0.06^a,b		< 0.001
RER at exhaustion
LOW-GI	1.18 ± 0.06	1.13 ± 0.046^c	< 0.001	< 0.001	< 0.001
HIGH-GI	1.17 ± 0.048	1.14 ± 0.05^c		0.038
LCHF	1.18 ± 0.04	1.07 ± 0.05^a,b		< 0.001
Lactate concentration at exhaustion [mmol L⁻¹]
LOW-GI	9.5 ± 2.2	9.0 ± 1.9	0.009	0.161	0.043
HIGH-GI	9.9 ± 2.7	10.0 ± 2.1^c		0.798
LCHF	8.6 ± 1.2	8.4 ± 1.9^b		< 0.001
FAT_max [% VO_{2 peak}]
LOW-GI	59 ± 9	62 ± 10	0.617	0.025 *	0.089*
HIGH-GI	57 ± 12	59 ± 9
LCHF	61 ± 11	67 ± 10

^a,b,cSignificant different between groups at T-10: ^acompared to LOW-GI, ^bcompared to HIGH-GI, ^ccompared to LCHF. *Indicates main group effect from two-way mixed ANOVA. Bold numbers respresent a significant interaction effect or a significant simple main effect