Fig. 2
From: Cardiovascular responses to orthostasis and their association with falls in older adults
Cerebrovascular Responses to the Passive Seated Orthostatic Stress Test in Fallers (Black) and Non-fallers (White). a. Average seated percentage change in systolic (sCBFV) and diastolic (dCBFV) cerebral blood flow velocity in response to the passive seated orthostatic stress. The sCBFV decrease was significantly larger in fallers (-10.4 ± 4.3 cm.sec−1) than in non-fallers (+2.0 ± 3.0 cm.sec−1, p = 0.03). The dCBFV decrease was not significantly different between groups (fallers: −6.0 ± 3.3 cm.sec−1; non-fallers: −1.2 ± 1.3 cm.sec−1: p = 0.67). The solid horizontal line denotes the median; dashed horizontal line denotes the mean. b. Individual responses showing sCBFV in supine and seated positions in fallers (Black) and non-fallers (White). Group mean data with error bars (standard error of the mean) are shown with diamond symbols. In fallers, seated sCBFV were significantly lower than the supine values