Cerebellar Testing of Diadochokinesia (Rapid Alternating Movements)
III. Technique: Rapid Forearm rotation
Patient rests the dorsum of one hand against their thigh or other hand
Patient flips their hand over, palm side up
Patient repeats hand flipping as quickly as they can (generating a slap sound with each flip)
IV. Technique: Alternative
Tap each finger tip against the thumb of the same hand
Move from one finger to the next, each tapping the pad of the thumb
Abnormal testing (Dysdiadochokinesia) suggests cerebellar or coordination dysfunction
Images: Related links to external sites (from Bing)
These images are a random sampling from a Bing search on the term "Rapid Alternating Movements." Click on the image (or right click) to open the source website in a new browser window. Search Bing for all related images
FPnotebook.com is a rapid access, point-of-care medical reference for primary care and emergency clinicians. Started in 1995, this collection now contains 6916 interlinked topic pages divided into a tree of 31 specialty books and 737 chapters. Content is updated monthly with systematic literature reviews and conferences.
Although access to this website is not restricted, the information found here is intended for use by medical providers. Patients should address specific medical concerns with their physicians.
This page was written by Scott Moses, MD, last revised on 2/8/2015 and last published on 4/4/2021.