Table 3 Aerobic and anaerobic fitness of trained and untrained subjects. Values are means (±SD).

	Trained Subjects (n=73)	Untrained Subjects (n=74)
Aerobic Fitness
Peak VO2 (L·min-1)	2.5 (.6)	2.1 (.5) ***
Peak VO2 (mL·kg-1·min-1)	50.7 (3.8)	45.4 (5.1) ***
Peak HR (b·min-1)	197.3 (5.1)	203.1 (6.2) ***
Peak La (mmol·L-1)	7.9 (2.0)	7.6 (1.9)
Peak RS (km·h-1)	13.8 (1.2)	12.4 (1.2) ***
RS2.5 (km·h-1)	10.2 (.9)	8.0 (.8) ***
RS3.0 (km·h-1)	10.7 (.9)	8.7 (.8) ***
RS3.5 (km·h-1)	11.1 (.9)	9.2 (.8) ***
RS4.0 (km·h-1)	11.4 (.9)	9.6 (.8) ***
Anaerobic Fitness
Peak power (W)	447.5 (146.7)	388.9 (117.1) **
Peak power (W·kg-1)	9.1 (1.3)	8.2 (1.2) ***
Mean power (W)	319.4 (101.1)	275.2 (82.9)**
Mean power (W·kg-1)	6.5 (.8)	5.8 (.8)***

HR = heart rate; La = blood lactate; RS = running speed; RS, RS RS and RS = submaximal running speeds corresponding to fixed blood lactate concentrations of 2.5, 3.0, 3.5 and 4.0 mmol·L respectively** denote significant difference from trained subjects at p < 0.01*** denote significant difference from trained subjects at p < 0.001 respectively.