Autonomic Health & Mitochondrial Age Proxy
Vital Markers
Performance Analysis:
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Research Protocol: Autonomic Age Markers
RHR & Vagal Tone
Resting Heart Rate (RHR) is a critical proxy for parasympathetic nervous system health. For athletes over 50, a lower RHR is correlated with higher Vagal Tone. This diagnostic uses a baseline RHR of 65 BPM as the "Chronological Zero" for standard aging populations.
The Mitochondrial Multiplier
High-intensity work (Zone 4/5) drives mitochondrial biogenesis and stroke volume. Research suggests that consistent HIIT volume can effectively reverse age-related declines in cardiovascular capacity, "re-wiring" the heart to a functional age 5–10 years younger than sedentary controls.
Diagnostic Disclaimer: Bio-age is a performance estimation based on cardiovascular resilience markers. Factors like caffeine intake, sleep deprivation, and overreaching can inflate RHR. Always measure RHR immediately upon waking for diagnostic consistency.