Abstract
Background: Normal pressure hydrocephalus (NPH) is characterized by three symptoms, disturbance of gait, dementia and urinary incontinence. Especially, disturbance of gait is known as a relatively early symptom. Differential diagnosis of NPH is not easy since many symptoms overlap with other neurological diseases. The cerebrospinal fluid shunting is expected to ameliorate symptoms of NPH. The late detection of disease may limit the treatment effect. Therefore, the early detection of NPH is important. Previous studies have reported that clinical features of the gait abnormality in NPH. These measurements need relatively large instruments, such as motion capture systems.
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