[4] Although the technique is simple, needs virtually no exercise equipment, and can be done on one's own, concentration and some degree of perseverance is required.
[5][6] A simple calculation will show that this can be achieved by doing 60 repetitions every hour for six weeks in a 16-hour daily waking period.
The brain as a whole learns to compensate for motor deficits in the cerebellum (or the spinal cord where applicable).
This event inspired Frenkel to a general assumption: 'If one patient can reduce his ataxia by practice, why not all?
[citation needed] In his book on ataxia, Frenkel states: "The visual sense is the greatest supporting factor in the treatment".
Frenkel asserted that the patient had to be free from opiate and alcohol use, for instance, in order to achieve the required focus of attention.