Table 1.

Experimental Impact Injury Conditions

Injury group	Displacement (mm)	Speed (mm/s)	No. of rats
1	0.9	8	8
2	0.9	80	7
3	0.9	800	8
4	1.5	8	6
5	1.5	80	7
6	1.5	800	7
7	Surgical sham	Surgical sham	5