Table 1.

Modified Ashworth scale

Grading	Description
0	No increase in muscle tone
1	Slight increase in muscle tone, manifested by a catch and release or by minimal resistance at the end of the ROM
1+	Slight increase in muscle tone, manifested by a catch, followed by minimal resistance throughout the remainder (less than half) of the ROM
2	More marked increase in muscle tone through most of the ROM, but affected part(s) can be easily moved
3	Considerable increase in muscle tone, passive movement difficult
4	Affected part(s) are rigid in flexion or extension

ROM=Range of motion