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Forearm blood flow (FBF) responses (A) and total FBF (B) to acetylcholine and FBF responses to sodium nitroprusside (C) before and after 3 mo of aerobic exercise training in postmenopausal women. Values are represented as means ± SD. *P < 0.05 vs. before training. Differences in FBF responses and area under the curve were determined by repeated-measures analysis of variance.
