Supplement to Verghese J et al. Abnormality of Gait as a Predictor of Non-Alzheimer's Dementia. N Engl J Med 2002;347(22):1761-8.

Video 1a

Video 1b

Unsteady Gait. This 83-year-old woman with a history of multiple strokes and cervical myelopathy sways slightly while walking and takes an occasional misstep (Video 1a). Her unsteadiness is worse when she attempts to place one foot directly in front of the other (Video 1b).

Video 2
Neuropathic Gait. This 80-year-old woman injured her right peroneal nerve in an automobile accident many years ago. She has a right foot drop when she walks. Her right leg is thinner than her left leg due to atrophy of the leg muscles (Video 2).

Video 3ab
Right Hemiparetic Gait. This 77-year-old woman with hypertension and diabetes had a stroke with right hemiparesis three years ago. She drags her right leg and foot when she walks (Video 3ab). Her footfall pattern (b) confirms the external rotation of the right foot (top of the panel).

Video 4ab
Left Hemiparetic Gait. This 74-year-old man with hypertension had a stroke with mild left-sided weakness two years ago (Video 4ab). He does not swing his left arm, his left leg moves slightly slower than his right, and his left foot is externally rotated (a). The mild external rotation of the left foot is more obvious on the footfall pattern (b).

Video 5ab
Frontal Gait. This 76-year-old woman has vascular dementia (Video 5ab). She takes short steps and has difficulty in picking her feet up off the floor (magnetic response) (a). The footfall pattern shows a slow gait with short steps and a wide base (b).

Video 6ab

Video 6c
Parkinsonian Gait. This 87-year-old man has Parkinson's disease (Video 6ab). He takes small, shuffling steps and accelerates while walking (a tendency termed "festination"). He does not swing his arms (a). The footfall pattern (b) confirms that there are short steps with a narrow base. He has difficulty initiating a turn and takes many steps (Video 6c). His stooped posture is noticeable when he stands in profile.

Video 7ab
Ataxic Gait. This 75-year-old woman with ataxic gait walks with a wide base and sways from side to side (Video 7ab). She loses her balance occasionally while walking (a). The wide base can be seen in the footfall pattern (b).

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