Table 2.

Type I and type II muscle fibre metabolites at rest (Rest) and immediately after (End) submaximal running with (CHO) and without (Con) carbohydrate supplementation

		Rest		End
		Type I	Type II	Type I	Type II
[ATP]	Con	21.6 ± 0.8	23.6 ± 1.3	22.3 ± 1.8	23.9 ± 2.0
	CHO	23.2 ± 1.3	22.6 ± 2.8	23.2 ± 1.2	23.6 ± 1.2
[PCr]	Con	66 ± 3 †	80. ± 2	32. ± 6	32. ± 6
	CHO	67 ± 4 †	78. ± 5	47 ± 4 **	48 ± 4 **
[Glycogen]	Con	304 ± 34 †	403. ± 44	64. ± 2	175 ± 33 ‡
	CHO	290 ± 29 †	423. ± 48	173 ± 13 **	221. ± 26
[G-6-P]	Con	0.6 ± 0.1	1.2 ± 0.6	1.5 ± 1.2	1.3 ± 0.8
	CHO	0.8 ± 0.2	1.8 ± 0.6	0.3 ± 0.1	0.5 ± 0.2

Values are means ± s.e.m. (n = 5), given in mmol glucosyl units (kg DM)^-1 for glycogen and mmol (kg DM)^-1 for other metabolites.

** Significantly different from Con (P < 0.05)

† significantly different from ‘Rest’ type II within the same treatment (P < 0.01)

‡ significantly different from ‘End’ type I within the same treatment (P < 0.05).