TABLE 1.

Results of graded economy test and maximal aerobic capacity before and after a 7-d nutritional intervention.

	High-CHO Availability (n = 9)					LCHF (n = 9)
	S1	S2	S3	S4	Max	S1	S2	S3	S4	Max
BM (kg)
Baseline	64.6 ± 7.4					63.1 ± 7.4
Adaptation	64.6 ± 7.2					61.8 ± 7.1*
RER
Baseline	0.94 ± 0.03	0.99 ± 0.03	1.01 ± 0.03	1.05 ± 0.04	1.16 ± 0.05	0.95 ± 0.03	0.98 ± 0.03	1.01 ± 0.04	1.06 ± 0.03	1.19 ± 0.05
Adaptation	0.92 ± 0.02	0.97 ± 0.03	0.99 ± 0.03	1.02 ± 0.03		0.81 ± 0.05***	0.85 ± 0.05***	0.89 ± 0.05***	0.94 ± 0.06***
V˙O2 (L·min−1)
Baseline	2.56 ± 0.49	2.85 ± 0.53	3.19 ± 0.61	3.46 ± 0.65	3.98 ± 0.72	2.51 ± 0.52	2.84 ± 0.58	3.18 ± 0.63	3.48 ± 0.58	4.19 ± 1.06
Adaptation	2.58 ± 0.47	2.91 ± 0.48	3.28 ± 0.59*	3.56 ± 0.64*		2.64 ± 0.56**	2.98 ± 0.51**	3.26 ± 0.55	3.60 ± 0.59**
HR (bpm)
Baseline	142 ± 12	150 ± 16	163 ± 12	172 ± 8	183 ± 7	142 ± 11	156 ± 13	169 ± 14	179 ± 14	194 ± 12
Adaptation	138 ± 8	153 ± 7	159 ± 10	170 ± 10		145 ± 12	156 ± 8	166 ± 10	181 ± 13
RPE
Baseline	11.0 ± 1.0	12.4 ± 1.0	13.6 ± 1.3	15.1 ± 1.6		10.0 ± 1.7	11.7 ± 1.4	12.9 ± 1.9	14.8 ± 1.5
Adaptation	10.3 ± 1.2	11.7 ± 1.1	12.7 ± 1.1	13.8 ± 1.4		10.9 ± 2.6	12.6 ± 2.4	14.6 ± 2.0*	16.6 ± 2.0

Data are presented as mean ± SD. Significant differences within group relative to baseline are denoted by *P < 0.05, **P < 0.005, and ***P < 0.0001.