Other contributors have said "How blood flow to kidneys is decreased with exercise?" is the same question as "Why would the blood flow to kidneys and abdomen decrease after exercise?" If you believe that these are not asking the same thing and should be answered differently, click here
Why would the blood flow to kidneys and abdomen decrease after exercise?
Blood flow to the kidneys and abdomen decreases during exercise because the muscles need more oxygen, and so, the blood vessels in them dilate. This causes more blood to go to the muscles, leaving less blood in the rest of the body.
I think if blood flow to the kidneys decreased, then the filtration rate of the blood would also decrease. The blood is forced through the anterior arteriole at high hydrostatic pressure- forcing the...
This usually happens during excercise and more blood will go to the muscles, leaving less blood in the rest of the body. Causing the blood vessels in the kidneys to dialate.