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. 2022 Jun 16;16:1865–1883. doi: 10.2147/DDDT.S214174

Table 1.

Functional Motor Scales Most Often Used in SMA

Age Range Group Specifics
CHOP INTEND107 <2 years, SMA type 1 Non-sitters Includes 16 items, total score 0–64 points.
Valid in non-sitters up to 4 years of age
HFMSE108 >2 years Sitters, walkers Evaluate motor function beyond infancy.
Includes 33 items, total score 0–66 points.
HINE-2109,110 2 months – 2 years All Motor development.
Includes 8 items, total score 0–26 points.
RULM111 >2 years Non-sitters, sitters, walkers Assessment of upper limb function.
Includes 20 items, total score 0–37 points.
6MWT112 >3 years Walkers Maximum walking distance in 6 minutes, along a 25-metre course.

Abbreviations: CHOP INTEND, Children´s Hospital of Philadelphia Infant Test of Neuromuscular Disorders; HFMSE, Hammersmith Functional Motor Scale – Expanded; HINE-2, Hammersmith Infant Neurological Examination, section 2 (motor milestones); RULM, Revised Upper Limb Module; 6MWT, 6-Minute Walking Test.