Source of Support: None, Conflict of Interest: None
Blood pressure changes during squatting and from squatting to standing have been studied in 67 healthy volunteers. A small but significant rise of systolic pressure occurred on squatting (8.09 + 7.04) but not in diastolic pressure (0.99 + 7.38). A very significant drop of systolic pressure occurred on standing from squatting (15.43 + 9.53 mm Hg) compared to the drop recorded on standing from supine position (5.01 + 7.04 mm Hg). Significant drop of lesser magnitude has been recorded in diastolic pressure as well. It appears that recording change in blood pressure from squatting to standing may be a more useful bed side test to assess autonomic function than the usual practice of BP recording on standing from supine position.