Imbalance and vertigo are among the most common symptoms causing patients to visit a physician. The rotational chair is one test modality used in the diagnosis of peripheral vestibular lesions through its ability to test higher, more physiologic frequencies and provides an adjunct to caloric and other ENG tests. The aim of this study is to assess the role of low frequency rotary chair testing in the evaluation and diagnosis of peripheral vestibular lesions. Forty subjects suffering from peripheral vestibular lesions, documented by the caloric test participated in this study. Twenty healthy adults served as control. They were subjected history taking, audiological evaluation, ENG and rotational chair testing in the form of SHA and rotational velocity step test. Results of SHA showed phase lead and reduced gain at low and mid that improved at higher frequencies, together with reduced time constant in velocity step test. The onset and course of the peripheral vestibular lesion have an important effect on the degree of compensation mechanism. These results highlight the extent of lesion and degree of compensation, which is important in the management of patients with peripheral vestibular lesions.