Table 1.

Respiratory, blood metabolite and plasma hormone measures at rest and during 240 min of exercise at 57 % V̇_O2,max

Time (min)	V̇O2 (l min−1)	RER	Blood glucose (mmol l−1)	Blood lactate (mmol l−1)	Blood glycerol (μmol l−1)	Plasma insulin (pmol l−1)
0	NM	NM	4.9 ± 0.4	0.69 ± 0.13	119 ± 18	51.9 ± 5.7
10	NM	NM	5.1 ± 0.6	1.00 ± 0.07 *	128 ± 14	24.0 ± 6.4 *
30	2.54 ± 0.13	0.89 ± 0.01	5.0 ± 0.3	0.91 ± 0.16	147 ± 12	14.7 ± 2.7 *
60	2.59 ± 0.12	0.88 ± 0.01	5.1 ± 0.3	0.58 ± 0.08	211 ± 32	14.7 ± 5.4 *
90	2.59 ± 0.11	0.86 ± 0.02	4.9 ± 0.3	0.54 ± 0.11	301 ± 46 *	6.9 ± 1.5 *
120	2.68 ± 0.10	0.85 ± 0.02	4.9 ± 0.3	0.49 ± 0.09	380 ± 49 *	5.0 ± 0.4 *
150	2.62 ± 0.11	0.83 ± 0.01 †‡	4.7 ± 0.3	0.53 ± 0.12	501 ± 55 *	1.5 ± 0.4 *
180	2.69 ± 0.12	0.83 ± 0.02 †‡	4.5 ± 0.3	0.59 ± 0.15	608 ± 51 *	1.4 ± 0.3 *
210	2.72 ± 0.16 †	0.82 ± 0.01 †‡	4.3 ± 0.3	0.63 ± 0.17	655 ± 36 *	1.4 ± 0.2 *
240	2.91 ± 0.16 †	0.81 ± 0.01 †‡§	4.0 ± 0.3	0.65 ± 0.23	701 ± 58 *	0.9 ± 0.1 *

Values are means ± s.e.m., n = 7.

^*Significantly different from 0 min

^†significantly different from 30 min

^‡significantly different from 60 min

^§significantly different from 90 min, P < 0.05.

NM, not measured.