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. Author manuscript; available in PMC: 2010 Jul 10.
Published in final edited form as: Int J Cardiol. 2008 Jul 7;135(3):346–352. doi: 10.1016/j.ijcard.2008.04.007

Figure 3.

Figure 3

Effects of endurance training on α-adrenergic receptor-dependent” and “nitric oxide-dependent” changes in carotid arterial compliance. Increases in arterial compliance from the baseline to the phentolamine administration were used as indices of α-adrenergic receptor-dependent vascular tone (left). Deceases in arterial compliance from the phentolamine administration to the combined phentolamine and L-NMMA administration were used as indices of systemic and local nitric oxide-dependent vascular tone (right).