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. 2015 Oct 6;(104):53257. doi: 10.3791/53257
NS 1 The hindlimb presents an abnormal splay, i.e., it is collapsed or partially collapsed towards lateral midline OR it trembles during tail suspension OR it is retracted/clasped. Normal OR slightly slower gait. NA
NS 2 The hindlimb is partially OR completely collapsed, not extending much.  There might still be joint movement. The hindlimb is used for forward motion however the toes curl downwards at least twice during a 75 cm walk OR any part of the foot is dragging along cage bottom/table. The mouse is able to right itself within 10 sec from BOTH sides.
NS 3 Rigid paralysis in the hindlimb OR minimal joint movement. Forward motion however the hindlimb is NOT being used for forward motion. The mouse is able to right itself within 10 sec from BOTH sides.
NS 4 Rigid paralysis in the hindlimbs. No forward motion. The mouse is NOT able to right itself within 10 sec from EITHER side.