Table 1.

Effects of training in the fasted state vs. training in the carbohydrate-fed state during an incremental exercise test to exhaustion and a 1-h time trial

	F	CHO
Incremental V̇o2max test
V̇o2max, ml · min−1 · kg−1
Pretest	56.7 ± 3.3	57.0 ± 3.7
Posttest	61.8 ± 3.0*	61.4 ± 2.6*
Time to exhaustion, min
Pretest	26.9 ± 1.1	26.6 ± 1.1
Posttest	29.3 ± 1.1*	28.8 ± 0.9*
FATmax, W†
Pretest	154 ± 11	169 ± 9
Posttest	186 ± 10*	180 ± 9*
1-h Time trial
Total work, kJ
Pretest	823 ± 36	820 ± 37
Posttest	881 ± 34*	887 ± 37*

Data provided are means ± SE (F: n = 10; CHO: n = 10). An incremental exercise test and a 1-h time trial were performed on a bicycle ergometer before (pretest) and after (posttest) a 6-wk training period in either the fasted state (F) or with ample carbohydrate intake before and during the training sessions (CHO). FAT_max represents the exercise intensity estimated to correspond with the maximal rate of fat oxidation as previously described (1). V̇o_2max, Maximal oxygen uptake.

^*P < 0.05 vs. pretest.

^†P < 0.05, time × group effect.