RMSSD_adj

Age has no effect on RMSSD_adj in humans (p > 0.05).

“No significant differences in intrinsic vagal modulation were observed between age cohorts (p > 0.05).”

Humansbetween younger (30-49) and older postmenopausal (50-69) cohortsfemales

Morphological Correlates of Suppressed Autonomic Modulation: A Machine Learning Approach to Identifying Vagal Impairment Phenotypes in Women

Journal of functional morphology and kinesiology·6 Sep 2026