what is paresis
Any damage to upper motor neurons results in increased tone and partial weakness of the muscles which is called paresis. One good example is stroke where people get hemiparesis or partial weakness in one side of the body. Paresis is described with the muscle, region or the organ affected. Here are some examples where the term âparesisâ is commonly used. 1  Monoparesis â One leg or one arm is weakened.  Paraparesis â Both legs are weakened usually occurs in spinal cord damage at the lower level.