EAI/ELVI (A), ELVI (B), and EAI (C), measured at rest in normotensive (NT) and systolic hypertensive (SH) men and women. EAI/ELVI does not differ at rest between NT and SH men due to tandem increases in EAI and ELVI in SH vs. NT men. In contrast, resting EAI/ELVI is lower in SH women vs. NT women, due to a disproportionate increase in ELVI vs. EAI. *P < 0.05, **P < 0.01, ***P < 0.001, comparing NT to SH after adjusting for age. [From Chantler et al. (15).]