Table 1.

Definitions of MAS for grading muscle spasticity.

Grade	Modified ashworth scale (28)	Values
0	No increase in muscle tone;	0
1	Slight increase in muscle tone, manifested by a catch and release or by minimal resistance at the end of the range of motion when the affected part is moved in flexion or extension;	1
1+	Slight increase in muscle tone, manifested by a catch, followed by minimal resistance throughout the remaining (less than half) range of motion;	2
2	More marked increase in muscle tone through most of the range of motion, but affected part easily moved;	3
3	Considerable increase in muscle tone, passive movement difficult;	4
4	Affected part(s) rigid in flexion or extension.	5

For convenience of statistical analysis, a Modified Ashworth Scale grade 1+ is to be substituted with a value of 2, and grade 2, 3 and 4 are matched to 3, 4, and 5, respectively.