Skip to main content

Table 2 The criteria for fasciculation grade

From: Fasciculation differences between ALS and non-ALS patients: an ultrasound study

Fasciculation intensity

Definition

Grade 0

No fasciculation in the area tested

Grade 1

Fasciculation presented at ≤2 sites in the area tested, and ≤ 3 times in 10 s at any site.

Grade 2

Fasciculation presented at ≤2 sites in the area tested, and > 3 times in 10 s at least at 1 site.

Grade 3

Fasciculation presented at ≄3 sites in the area tested, and ≤ 3 times in 10 s at any site.

Grade 4

Fasciculation presented at ≄3 sites in the area tested, and > 3 times in 10 s at least at 1 site.