Rotational Testing

Clinical Value of Rotational-Chair Testing in Vestibular Disease

Rotatory chair testing of the horizontal semicircular canals is an important but specialized tool in vestibular examinations. This review summarizes stimulus protocols, basic physiology and the current knowledge. It will be shown that the value of rotatory testing in clinical practice is part of a vestibular test battery in high end vestibular and balance centers but not in a general clinical p...

Comparison of manual whole-body and passive and active head-on-body rotational testing with conventional rotary chair testing.

New methods of rotational testing of the vestibulo-ocular reflex (VOR) using manually generated or patient-generated sinusoidal head movements have recently been advocated for clinical use in circumstances where conventional rotary chair testing methods are not feasible. However, studies seeking to provide evidence for the validity of these methods by comparing their results with an accepted "g...

Rotational Motion

Rotational Motion

Rotational aerophones.

Free rotational aerophones such as the bullroarer, which consists of a wooden slat whirled around on the end of a string, and which emits a loud pulsating roar, have been used in many ancient and traditional societies for ceremonial purposes. This article presents an experimental and theoretical investigation of this instrument. The aerodynamics of rotational behavior is elucidated, and relates...