Ability to ambulate both with and without assistive devices, unless contraindicated
by the medical judgment of a physician who has treated or examined the individual,
and with orthoses and prosthetics in place, where appropriate, without causing injury
to the individual. If the individual has difficulty with or is unable to use, the
orthotic or prosthetic device, the medical basis for the difficulty should be documented.
In addition, in such cases, if the impairment involves a lower extremity or extremities,
the examination should include information on the individual's ability to ambulate
effectively without the device in place, unless contraindicated by the judgment of
a physician who has treated or examined the individual. Furthermore, the individual's
medical ability to use a prosthesis to ambulate effectively should also be evaluated.