Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The oxygen saturations proximal from and in macular and peripheral branches from the upper temporal vascular arcade vessels before (solid bars) and during (open bars) an increase in the arterial blood pressure induced by isometric exercise in (A) arterioles, (B) venules, and (C) arteriovenous saturation difference. *P < 0.05.
