Table 3.

Kendall Scale

Grade	Description
10	Holds test position against strong pressure
9	Holds test position against moderate-to-strong pressure
8	Holds test position against moderate pressure
7	Holds test position against slight-to-moderate pressure
6	Holds test position against slight pressure
5	Holds test position (no pressure)
4	Gradual release from test position
3	Holds against resistance through full ROM with gravity eliminated or <100% ROM with against gravity
2	Moves through full ROM with gravity eliminated
1	Moves through <100% ROM with gravity eliminated
T	Visible or palpable muscle contraction
0	No muscle contraction possible

ROM=Range of motion