Postural stress tests for the clinico-physiological evaluation of cardiovascular reflexes.
Postural stress tests are useful in the assessment of cardiovascular reflex response of normal subjects who may be involved in specialised occupations such as flying; in order to study the effects of physiological stresses such as heat stress, hypoxia, simulation of weightlessness; physiological evaluation of cosmonaut candidates, in patients who may have autonomic neuropathy. Most commonly quiet standing is used but head-up tilt table test and the application of lower body suction may provide a better method of evaluation. These three tests for assessing reflex cardiovascular function are discussed.
Dikshit
M B
MB
Department of Physiology, Armed Forces Medical College, Pune, India.
D001794:Blood Pressure; D002320:Cardiovascular Physiological Phenomena; D006339:Heart Rate; D006801:Humans; D008150:Lower Body Negative Pressure; D011187:Posture; D012018:Reflex / Q000502:physiology*; D013312:Stress, Physiological / Q000503:physiopathology*