In general, there are two types of brain problems that can result in mobility Mobility
To be able to move about either on your own or with the use of a walking aid. impairment in people with dementia.

One type comes about because deep brain structures known as the basal ganglia are affected. This can be due to the dementing disease itself (for example, in dementia with Lewy bodies Lewy bodies
Round clumps of protein found in the brain's neurons in many people who experience a neurodegenerative disorder., the basal ganglia are affected early; in Alzheimer's disease Alzheimer's disease
A neurological disease that affects memory and behaviour. It is characterized by beta-amyloid plaques and neurofibrillary tangles in the brain. There is no known cause but genetics and lifestyle are thought to play a role., they are usually affected only much later) or from drugs (for example, drugs called neuroleptics that are used to treat agitation).

Another type of mobility problem comes from the 'thinking' parts of the brain, that integrate all the information needed to carry out purposeful movements. A problem with movement at that level of the brain is known as apraxia Apraxia
Apraxia is defined as the inability to carry out a previously learned motor activity, despite normal function of all the component parts (muscles, nerves, joints, etc.).  For example, experiencing difficulty dressing or using a knife and fork, are often clues that apraxia is present..

The mobility problems that come about when the basal ganglia are involved are known as Parkinsonism Parkinsonism
When you have a disorder other than Parkinson's, which features motor impairments similar to those experienced in Parkinson's disease. They are usually still related to problems with the amount of the neurotransmitter dopamine.. The word comes from 'Parkinson's disease'. Parkinson's disease is diagnosed when a person has each of the following signs: tremor, muscle rigidity Muscle rigidity
Continuous involuntary sustained muscle contraction., slow movements and a tendency to fall. The term Parkinsonism is used when only two or three of these signs are present.