title: Effects of selected bronchial drainage positions and percussion on blood pressure of healthy human subjects.
abstract: The purpose of this experimental study was to examine blood pressure changes of healthy subjects in response to position changes (from supine to level and head-down side lying) and percussion. Twenty male and 20 female volunteers with a mean age of 25.9 years were divided randomly into four groups so that each group consisted of 5 men and 5 women. After resting supine for 20 minutes, subjects assumed a level or a head-down side-lying position (-10 degrees) for 6 minutes. During this 6 minutes, percussion was applied to two of the four groups. Systolic and diastolic blood pressures significantly decreased when subjects turned from a supine to a level or a head-down side-lying position. The decreases lasted the length of time the side-lying position was maintained. The blood pressure responses to head-down side lying did not significantly differ from the responses to level side lying. The blood pressure responses to the level and the head-down side-lying positions with percussion did not differ from the responses to these positions without percussion.
mesh_terms: D000328:Adult; D001794:Blood Pressure; D001980:Bronchi; D002319:Cardiovascular System / Q000503:physiopathology; D004322:Drainage / Q000379:methods*; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000628:therapy; D008297:Male; D010474:Percussion; D011187:Posture; D011247:Pregnancy