alternate action

Alternate motion (alternatemotion) instructs the examinee to repeatedly alternately and rapidly tap the other side of the back of the hand with one palm and the back of the hand, or perform continuous and rapid tapping motions on the bed or tabletop. People with ataxia move clumsily, slowly, and with irregular rhythms. Rapid movement disturbance on one side suggests a lesion in the cerebellar hemisphere. Don't be too nervous during the doctor's examination, and actively cooperate with the doctor's work. Basic Information Specialty Category: Neurological Exam Category: Neuroelectrophysiology Applicable Gender: Both men and women Fasting: Non-fasting Reminder: Keep a normal diet and rest time. Normal value A normal person can complete the rotation accurately. Clinical significance abnormal results 1, clumsy, slow, uneven rhythm, suggesting ataxia patients. 2. Rapid movement disorder on one side indicates that there is a lesion in the cerebellar hemisphere. People who need to be examined: Patients with suspected ataxia and cerebral hemisphere lesions. Precautions Pre-examination taboos: keep a normal diet and work and rest time. Requirements during the examination: The doctor should not be too nervous during the examination, and actively cooperate with the doctor's work. Inspection process Instruct the examinee to tap the back of the other hand alternately and quickly with one palm and the back of the hand, or make continuous and fast tapping actions on the bed or table top. People with ataxia move clumsily, slowly, and with irregular rhythms. Rapid movement disturbance on one side suggests a lesion in the cerebellar hemisphere. Unsuitable people Unsuitable people: None. Adverse reactions and risks No.