Effects of acute bilateral jugular vein compression on sas-TQ, cc-TQ, CBFV, SAP, DAP, PP and HR during the BOPT test (BOPT – JVO; n = 10). Mean values and Standard Deviations (SD) are provided.

<p>All changes are calculated versus preceding values. *p<0.05; **p<0.01; ***p<0.001. sas-TQ – the subarachnoid component of the transillumination quotient (the subarachnoid width); cc-TQ – cardiac component of transillumination quotient (pial artery pulsation); CBFV – cerebral blood flow velocity; SAP – systolic arterial pressure; DAP – diastolic arterial pressure; PP – pulse pressure; HR – heart rate.