Normative Heart Rate Variability Parameters Across Age and Gender in Healthy Adults from an Apex Tertiary Care Centre in Southern India.

Ann Neurosci · 2026 · PMC13318826 · PMID 42389362

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an increasing trendno p-value reported

While considering frequency domain, LF nu showed a gradual rise, HF nu declined consistently and the LF/HF ratio depicted an increasing trend with age, reflecting a shift towards sympathetic predominance.

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