text: is there any blood pressure difference in upper and lower extremities? or its same in normal individual?   in short, yes but not significant if i recall correctly.  there is a small shift in blood presure between measurement in the arms and measurement in the legs.   blood pressure itself is measured during systolic and diastolic stages in the heart cardiac cycle.    as blood travels away from the heart it experiences resistance to flow through vascular flow resistance - turbulance, etc... this reduces flow (but increases blood velocity), and increases blood pressure.  also, under the force of gravity, blood pressure tends to be higher in lower extremeties due to blood compression towards the leg (although blood is pulsatile and valves built into vascular architecture tend to stop most of this.  this results in a slightly higher reading in lower extremeties.  taking blood pressure readings in arms and comparing to that in legs is a good indicator of stenosis and such problems on cardiology.  a drastic reduction in blood pressure in the leg when comapred to that in the arm is a good indicator of vascular blockage in femoral regions (typical) or typically, stenosis.  please check this as my recollection on this may be a bit hazzy and it is late.