Fig. 5From: Increase in carbon dioxide accelerates the performance of endurance exercise in rats a Staining for mitochondria and capillaries in the deep layer of the tibialis anterior muscles of the control, training, and CO2 groups. b Neovascularisation in the CO2 group, as determined by the quantification of capillary density, was significantly higher than that in the control group. *p < 0.05Back to article page