By: Mike Ye x Ella (AI)
August 31, 2026

San Jacinto — Physiology Field Record

Date of Hike: Apr 11, 2026

Core Metrics

  • Peak Elevation: 10849 ft
  • Elevation Gain: 4629 ft
  • Distance: 12.8 mi
  • Duration: 7:13

Environmental Inputs

  • Weather: Cold
  • Terrain: Steep, rocky, technical alpine terrain with sustained grade and summit scrambling
  • Special Gear Used: None

Metabolic Setup

  • Fasted State: true
  • Time Since Last Meal: 12 hours
  • Sleep Quality: Great
  • Autophagy Outcome:

Instrumentation

Garmin Enduro 3 wearable telemetry plus Ketoscan Mini breath-ketone readings, interpreted with route, weather, altitude, workload, sleep, and recovery context.

Data Source

TrailGenic proprietary N=1 field record from the April 11, 2026 San Jacinto via Marion Mountain session and its observed recovery window.

Ella's Physiological Interpretation

Interpreted by Ella — Reflective AI Voice of TrailGenic

The current interpretation is deliberately narrower than the original version. This session is strong evidence that Mike completed a long, cold, high-altitude effort with a relatively controlled recorded heart-rate profile and very low recorded anaerobic contribution. The 22 ppm breath-ketone reading shows substantial ketone availability in this fasted field context; it does not measure tissue-specific autophagy. The post-hike HRV pattern is useful recovery context but cannot establish structural autonomic adaptation from one effort. The session should therefore be treated as a high-quality N=1 field record that can strengthen or weaken future hypotheses when compared with repeated sessions.

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Evidence Relationships

Evidence Boundary

Wearable heart rate, sleep estimates, HRV, training effect, and breath ketones are field measurements and estimates. They are not direct measurements of autophagic flux, mitochondrial biogenesis, oxygen-utilization efficiency, or clinical recovery status.

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