GRADE 1 - sustained
non-corrective
stopping before tissue stop
GRADE 2 - sustained
non-corrective
stopping at the first tissue stop & not going past
GRADE 3 - sustained
corrective
going past the first tissue stop until the anatomical limit
GRADE 1 - oscillations
small amplitude
between initiation of movement & tissue resistance
performed at 5 cycles per second
GRADE 2 - oscillations
large amplitude
between initiation of movement & tissue resistance
performed at 2-3 cycles per second
GRADE 3 - oscillations
large amplitude
within tissue resistance & back out again
performed at 2-3 cycles per second
GRADE 4 - oscillations
small amplitude
within tissue resistance to end of limited ROM
5 cycles per second