Upright posture reduces forearm blood flow early in exercise

J K Shoemaker1, P M McQuillan, L I Sinoway

  • 1Section of Cardiology, The Pennsylvania State University College of Medicine, The Milton S. Hershey Medical Center, Hershey, Pennsylvania 17033, USA. kshoemak@gcrc.hmc.psghs.edu

Summary

Upright posture reduces forearm blood flow (FBF) during early exercise. This reduction is mainly due to lower venous pressure, not sympathetic vasoconstriction, impacting exercise hyperemia.

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