0
no contractions felt in muscle
1
tendon becomes prominent, but no visible movement
2-
movement in horizontal plane
moves through partial ROM
2
movement in horizontal plane
moves through complete ROM
2+
antigravity position
moves through partial ROM
3-
antigravity position
gradual release from test position
3
antigravity position
holds test position w/ no added pressure
3+
holds test position against slight pressure
4-
holds test position against slight to moderate pressure
4
holds test position against moderate pressure
4+
holds test position against moderate to strong pressure
5
holds test position against strong pressure