What is the blood flow through a capillary in a frog's foot?

They have "double -loop " circulation -faster blood flow to the body , the blood loses some of its force as it passes throught the narrow capillares of the gills , after passing throught the capillares of the lungs , blood returns to the heart to be pumped a second time before circulating to the body ....note: narrow capillares slow flow .... This capillares have most of the amphibious