TABLE 2:

System D (modified from Donaldson and others and Valverde and others^{3 5})

Overall attitude	1–Calm 2–Calm/determined 3–Confused, dizzy 4–Frantic
Move to sternal	1–Smooth/methodical 2–Fighting mat, but controlled 3–Crashing, flopping over
Sternal phase	1–An organised pause 2–Non-existing 3–Multiple, with struggle
Moved to sternal	1–Methodical 2–An organised scramble 3–Used walls for support 4–Ricocheting off walls
Strength	1–Near full 2–Mildly rubbery 3–Dog sitting before standing 4–Repeated attempts due to weakness
Number of attempts to stand	Score = #
Balance and coordination	1–Solid 2–Moderate dancing 3–Reflex saves 4–Careening 5–Falls back down
Knuckling	1–None 2–Hindlimbs only 3–All four
Based on total score	1–Smooth, calm
	2–Calm but with some weakness, mild ataxia less than 10 minutes in duration
	3–As 2 but ataxia more than 10 minutes in duration
	4–Uncoordinated, with difficulties and ataxia, more than 3 attempts to stand
	5–Difficult recovery, unable to stand in the first 5 attempts; ataxia that can last for more than 20 minutes