Fig. 1.
Schematic diagram of experimental protocol. Subjects completed 4 exercise trials. Each exercise trial consisted of baseline, exercise (control), exercise during inflation, exercise following deflation, and recovery measurements (3 min each). Exercise trials were performed during control (no drug) and NG-monomethyl-l-arginine (l-NMMA) infusions. Each trial was separated by at least 20 min of rest to allow forearm blood flow (FBF) to return to baseline values. Acetylcholine (ACh) and sodium nitroprusside (NTP) dose-response infusions were performed at the start and end of the study. MVC, maximal voluntary contraction.