Population
658 normotensive healthy nonmedicated volunteers, including 398 males and 260 females
Design
Cross-sectional
Key result
Female sex was associated with lower resting MSNA burst frequency compared to males until age 50 (17 vs 25 bursts/min; P<1x10^-19), after which values converged.
Authors
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Sex- and age-specific MSNA patterns should not alter practice in normotensives; leaves open longitudinal studies on hypertension risk.
Cross-Sectional (n=658)
In healthy normotensive adults, muscle sympathetic nerve activity increases nonlinearly after age 30, with a significantly steeper age-related increase observed in women compared to men.
Keir et al. (2020) conducted a cross-sectional in Healthy normotensive adults (n=658). Female sex vs. Male sex was evaluated on Resting MSNA burst frequency. Female sex was associated with lower resting MSNA burst frequency compared to males until age 50 (17 vs 25 bursts/min; P<1x10^-19), after which values converged.