Table 1.

Exercise capacity and body mass of experimental animals

	CON-LCR	MV-LCR	CON-HCR	MV-HCR
Running capacity at 11 wk of age, m*	242 ± 17	246 ± 21	2,322 ± 95	2,201 ± 43
Running capacity at 11 wk of age, min*	17.4 ± 0.9	17.5 ± 1.2	79.1 ± 1.9	76.7 ± 0.9
Body mass at time of experiments, g*†	239 ± 5	278 ± 7	226 ± 5	263 ± 3

Values are expressed as means ± SE. CON, control group; LCR, low-capacity runners; MV, mechanical ventilation; HCR, high-capacity runners.

^*Main effect of strain (LCR vs. HCR), P < 0.05.

^†Main effect of treatment (CON vs. MV), P < 0.05.