What is the difference between spasticity and tone?
Tone refers to the state of slight contraction usually present in muscles that contributes to posture and coordination. Spasticity refers to the abnormal velocity increase in muscle tone. For example, in an individual with spasticity, pulling the forearm away from the upper arm will be harder the faster you try to move it. Whereas in someone who exhibits increased tone, the resistance you feel is independent of the speed at which you try to move the body part.
