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VIDEO 7-1 Different degrees of gait ataxia. The first video segment shows an 18-year-old man with ataxia with oculomotor apraxia type 2. Mild gait ataxia can manifest with variable step length, side steps, and veering toward one side without a marked wide base. The second video segment shows a 37-yearold man with idiopathic cerebellar ataxia. In patients with moderate ataxia, the gait becomes wide based with obvious variable stride lengths. The third video segment shows a 32-year-old woman with spinocerebellar ataxia type 2. In the advanced stages of ataxia, a wide-based gait is more evident, and the stride length becomes shorter to compensate for ataxia.
