Rotational Chair Measurements in Adults 

In the video, you will learn about the core fundamentals of rotational chair testing.
We will cover the two most commonly performed tests in the rotational chair: the sinusoidal harmonic acceleration (SHA) test and the velocity step test. It will cover the test theory and interpretation as well as frequently asked questions.
To guide you through this video, we have the pleasure of learning from the true expert of rotational chairs, Dr. Chris Zalewski.
Level: Intermediate
Timestamps:
0:00 Tests we perform in the rotary chair
0:23 What is the vestibulo-ocular reflex (VOR)?
1:37 Sinusoidal harmonic acceleration (SHA)
2:44 SHA parameter 1: Gain
7:34 SHA parameter 2: Symmetry
9:15 SHA parameter 3: Phase angle
14:45 Velocity step test
15:34 Low-velocity step test
22:52 High-velocity step test
26:28 Can you get ear-specific information from rotational testing?
27:19 Is it okay to test a single target velocity?
29:05 Which test is best in BVL patients?
29:58 Is rotational testing good for screening vestibular function?
30:58 Sinusoidal oscillation and velocity step testing abnormalities
#rotationalchairtesting #rotarychairtesting
Dr. Zalewski earned a BA from Pennsylvania State University, an MA in Audiology from the University of Maryland, and a Ph.D. in Audiology at Gallaudet University. Since 2002, he has been a Research Audiologist at the National Institute on Deafness and Other Communication Disorders (NIDCD), part of the NIH. His principal interests are vestibular disorders and the genetics of hearing loss.
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