Table 2. Ambulation chamber video observational neuromotor score.

Score	Description
0	No voluntary function
1	Slight movement of one or two joints
2	Active movement of one or two joints, slight movement of other joints
3	Active movement of all three joints, no weight bearing
4	Slight weight bearing, consistent dorsal stepping (no plantar stepping)
5	Slight weight bearing, occasional plantar stepping
6	Frequent plantar stepping, occasional weight bearing, hops with partial weight support
7	Frequent plantar stepping and weight bearing, occasional FL-HL coordination
8	Consistent plantar stepping and partial weight supported steps, occasional FL-HL coordination
9	Frequent partial weight supported steps, occasional FL-HL coordination
10	Occasional partial weight supported steps, frequent foot drop and/or drag, run with partial weight support
11	Occasional partial weight supported steps, frequent FL-HL coordination
12	Slight partial weight supported steps, frequent FL-HL coordination, stands up HL with partial weight support
13	Slight partial weight supported steps, consistent FL-HL coordination, frequent foot drop and/or drag
14	Full weight supported steps and consistent FL-HL coordination, occasional foot drop and/or drag
15	Occasional foot drop and/or drag, stand up HL with full weight support
16	Slight foot drop and/or drag, no toe clearance
17	No foot drop and/or drag, no toe clearance
18	Occasional toe clearance
19	Frequent toe clearance
20	Normal

The animals were placed in an open flat ground for behavior observation; 2 observers scored for animals. The observation was more than 15 minutes, and the video was recorded at the same time. Score should been played in the morning and urinate was need before the score.