OPHTHALMIC ARTERY FLOW VELOCITY AFTER PHYSICAL EXERCISE IN HEALTHY-MEN

This study was conducted to evaluate the effects of physical exercise on blood now velocity in the ophthalmic artery of healthy men. Color D oppler imaging, which permits rapid noninvasive imaging of the ophthal mic artery, was performed in 11 healthy male adult volunteers to compa re pre- and post-exercise measurements of blood now velocity. After su bmaximal physical exercise, systolic blood flow velocity (Vmax) and ti me-averaged blood now velocity (Vmean) increased significantly, but re turned to pre-exercise levels 5-10 minutes after the completion of phy sical exercise. There were no significant changes in minimum end-diast olic blood now velocity (Vmin), resistance index (RI) or pulsatility i ndex (PI). The RI and PI parameters are considered to reflect vascular resistance. Our results indicate that submaximal physical exercise in creased the blood now velocity, but did not alter the resistance index of the ophthalmic artery.