Subject
*Physical Exertion; Animals; Arginine/analogs & derivatives/pharmacology; Blood Flow Velocity; Blood Pressure/drug effects; Blood Vessels/*drug effects; Dose-Response Relationship; Drug; Female; Heart Rate/drug effects; Iliac Artery/drug effects/physiology; Male; NG-Nitroarginine Methyl Ester; Nitric Oxide/antagonists & inhibitors/*physiology; Phenylephrine/*pharmacology; Rats; Sprague-Dawley; Time Factors; Vasoconstriction/drug effects/physiology