Table 1.

Grouped data for breathing pattern measurements during room air breathing and hypercapnic challenge in unanesthetized control and spinally injured rats at 2- and 14-d post-contusion.

	Control	Spinally Injured
		2-days	14-days
Tidal Volume (ml)
Room Air	2.5 ± 0.1	1.6 ± 0.1 *†	2.4 ± 0.1
Hypercapnia	4.3 ± 0.1	2.4 ± 0.3 *†	3.8 ± 0.2
Δ Volume	1.8 ± 0.1	0.8 ± 0.3 *†	1.4 ± 0.1
Respiratory Rate (min−1)
Room Air	77 ± 3	114 ± 6*†	83 ± 3
Hypercapnia	147 ± 4	133 ± 7	147 ± 6
Δ Respiratory Rate	70 ± 4	19 ± 11 *†	64 ± 6
Minute Volume (ml.min−1)
Room Air	188 ± 7	170 ± 113	189 ± 12
Hypercapnia	647 ± 28	316 ± 50*†	554 ± 47
Δ Minute Volume	458 ± 28	146 ± 48 *†	377 ± 29

Δ, the difference between room air and hypercapnic measurements;

^*, p<0.05 different to controls;

^†p<0.05, different to 14-d value.