Table 1.

Item order original Hammersmith functional motor scale for children with SMA

1.	Frog/chair sitting no hand support
2.	Long sitting. No hands
3.	1/2; Roll from supine, both ways
4.	Touches one hand to head (R/L) (in sitting)
5.	Touches 2 hands to head (in sitting)
6.	Rolls prone to supine over R
7.	Rolls prone to supine over L
8.	Rolls supine to prone over R
9.	Rolls supine to prone over L
10.	Gets to lying from sitting (safely, not accidentally)
11.	Achieves prop on forearms-head up
12.	Lifts head from prone (arms down by sides)
13.	Achieves four point kneeling-head up
14.	Achieves prop on extended arms-head up
15.	Gets to sitting from lying through side lying
16.	Crawls
17.	Lifts head from supine
18.	Stands holding on with one hand
19.	Stands independently: count >3
20.	Takes >4 steps unaided