Muscles are spastic, not people. A condition where a person has limited ability to communicate throught speech. Without speech discribes someone with no verbal speech capacity. Permanent damage to the spinal cord. Quadriplegia describes substantial or total loss of function in all four limbs.
Paraplegia refers to substantial or total loss of function in the lower part of the body.
Many disablity groups do not like using euphemisms to describe disabilities. They should be included in all aspects of daily life and extended common courtesies when interacting with them. It is appropriate to shake hands with a person who has a disability, even if they have limited use of their hands or wear an artifical limb. When talking with a person who has a disability speak directly to that person rather than a companion or interpreter. Ignore guide dogs or other service animals.