Table 3. Absolute energy system contributions in each stage of the incremental exercise test. Data are means (±SD, n =10).
Speed
(km·h–1)		 6.0 7.2 8.4 9.6 10.8 12.0 13.2 14.4 15.6 16.8 18.0
Aerobic
(kJ)		 47.2 *
(7.6)		 63.0 *
(7.7)		 94.4 *
(13.0)		 110.2 *
(15.0)		 123.7 *
(17.3)		 134.0 *
(16.4)		 147.2 *
(17.1)		 160.2 *
(15.5)		 168.8 *
(18.4)		 177.0 *
(22.1)		 183.9 *
(23.5)
Glycolytic
(kJ)		 2.1
(1.0)		 2.0
(.9)		 2.2
(1.1)		 4.3
(1.0)		 4.4
(1.6)		 6.0
(1.2)		 8.1
(2.0)		 12
(2.3)		 17.9
(2.5)		 20.3
(3.1)		 30.6
(3.0)
WTOTAL
(kJ)		 49.3
(7.4)		 65.1
(7.7)		 96.6
(12.3)		 114.4
(15.0)		 128.1
(17.6)		 140.0
(17.4)		 155.3
(18.7)		 172.1
(19.7)		 186.7
(25.0)		 197.3
(31.1)		 214.6
(25.8)
W: total metabolic demand.* Different from glycolytic contribution (p < 0.05).