Motor skills are motions carried out when the brain, nervous system, and muscles work in concert. The cerebellum is deeply interconnected with sensory-motor areas of the cerebral cortex. Cerebellar ataxia and motor-based neuropathy damage both contribute to the loss or impairment of motor skills.
Cerebellar ataxia affects the fine motor skills, small movements like opening a jar, holding a fork, cutting your food or using a small tool. Fine motor skills use the muscles in your fingers, hands, wrists, toes, lips, and tongue.
Motor-based neuropathy affects the gross motor skills, the large muscles in the arms, legs, torso, and feet. These skills are responsible for the bigger movements like sitting, standing, walking, running and balance.