Longitudinal Field Evidence

TrailGenic™ Physiology Dataset

A longitudinal N-of-1 field record documenting observed performance and physiological context across Walking, Rucking, Running, and Hiking.

Sessions are measured under real load, terrain, altitude, heat, cold, wind, and long-duration stress. Direct measurements remain separate from interpretation; source columns govern, and full-record patterns outrank individual session stories.

Current Dataset Declaration

60 Sessions Across Four Movement Layers

The most mature layer is HikeWorldModel™ v3.0: 32 corrected hiking sessions from November 28, 2025 through July 12, 2026, totaling 349.95 miles, 134,277 feet of elevation gain, and 11,130 minutes of field exposure.

60Total structured sessions
16Walking · baseline context
4Rucking · external load
8Running · faster demand
32Hiking · field expression
349.95Hiking miles
134,277Feet of hiking gain
11,130Field minutes
Strongest Record-Level Pattern

Improving Hiking Economy, With Mechanism Unresolved

Average Hike Heart Rate

128.1 → 123.9 bpm

First 16 versus final 16 hikes. Correlation with session number: r = −0.484.

Mean Garmin Exercise Load

131.0 → 65.8

First 16 versus final 16 hikes. Correlation with session number: r = −0.574.

The later half also averaged more duration and elevation gain. This pattern is consistent with improving hiking economy, but it does not prove one physiological mechanism.
Full-Record Audit

What HikeWorldModel™ v3.0 Changed

Earlier interpretationCorrected recordStatus
29 of 32 hikes had negative drift; median −0.74%26 negative and 6 positive; median −0.96%Superseded
Wheeler was the first positive-drift hike and revealed fatigueFive positive-drift hikes preceded Wheeler; drift and pre-hike HRV correlated at r = +0.03Hypothesis withdrawn
Pre-to-post HRV change measured recovery cost and adaptationPre- and post-hike HRV correlated at r = +0.09; the delta correlated with its starting value at r = −0.738Metric retired
The Western Block revealed an Engine–Governor divergenceThe founding HRV-delta comparisons were dominated by starting values and regression toward the post-hike meanDataset claim withdrawn

Earlier session narratives remain part of the historical record, but HikeWorldModel v3.0 controls wherever those narratives conflict with corrected source columns.

Evidence Boundaries

Directional Signals, Not Standalone Diagnoses

Heart-Rate Drift

26 negative · 6 positive

Median −0.96%. A descriptive whole-route direction—not a validated efficiency, fatigue, fitness, or readiness score.

Breath Acetone

22 ppm observed high

Recorded on San Jacinto and Mount Elbert. Not blood ketones, fat-oxidation rate, autophagic flux, or clinical metabolic status.

Post-Hike HRV Trend

r = +0.164 · p = .378

The observed upward direction is not persuasive evidence of longitudinal adaptation.

Western Altitude Block

Descriptive Exposures, Not a Causal Recovery Model

Elbert, Manitou, Pikes, and Wheeler document 37.63 miles, 15,867 feet of gain, and 24.2 hours under compressed travel and altitude conditions. They do not establish a distinct recovery governor, physiological ceiling, or Wheeler fatigue marker.

EffortField factsObserved signalBoundary
Mount Elbert11.02 mi · 5,361 ft · 473 min · 14,497 ft127 bpm · −1.30% · 22 ppmHighest recorded elevation and tied-high acetone; not a proven recoverable ceiling
Manitou Incline4.00 mi · 1,929 ft · 170 min · 8,567 ft131 bpm · −1.00%Short, steep exposure; no standalone recovery conclusion
Pikes Peak14.04 mi · 5,581 ft · 502 min · 14,116 ft123 bpm · −1.40% · 20 ppmLow surrounding HRV context; the retired delta does not prove recovery failure
Wheeler Peak8.57 mi · 2,996 ft · 307 min · 13,154 ft123 bpm · +1.20% · 7.3 ppmOne positive whole-route drift value; not a validated fatigue-reveal signal
Current System Model

Performance Is Observed. Recovery Is Context. Return Tests the Interpretation.

Performance

Route, duration, gain, pace, heart rate, exercise load, altitude, environment, metabolic context, symptoms, mechanics, and technical execution.

Recovery Context

Sleep, HRV, resting heart rate, stress, soreness, fatigue, symptoms, and time. No single delta certifies adaptation or readiness.

Return

The next relevant effort can support, refine, or contradict an interpretation while remaining observational rather than proof of one mechanism.

The durable principle retained from the earlier Engine–Governor language is narrower: finishing a difficult effort proves completion, not that the dose was optimal, absorbed, or immediately repeatable.
Current Research Nodes

Connected Evidence

Physiology Record Index

Selected Session Records

The CMS records below preserve individual measurements and historical interpretation. HikeWorldModel v3.0 controls wherever earlier wording conflicts with corrected source columns.

TrailGenic content is educational and observational. Wearable and breath-acetone measurements are field estimates, not clinical tests, medical advice, diagnosis, or treatment.

Pikes Peak Physiology — Ceiling-Level Engine, Failed Recovery

Jul 01, 2026

Elevation Gain: 5581 ft  |  Duration: 8:22  |  Autophagy:

Pikes Peak validated the Engine–Governor divergence. The largest single effort in the HikeWorldModel maintained a controlled 123 bpm average heart rate, −1.40% HR drift, zero anaerobic spillover, and a 20 ppm end-ketone response at 14,116 ft. Yet recovery failed across the full window: HRV remained suppressed at 27 → 28 → 30 ms, resting heart rate stayed elevated, and overnight stress rose from 28 to 43 to a record 48. The engine performed at ceiling while the recovery governor remained overwhelmed.

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Mount Elbert Physiology — Altitude Ceiling and 48-Hour Resilience

Jun 27, 2026

Elevation Gain: 5361 ft  |  Duration: 7:53  |  Autophagy: Deep

Mount Elbert validated the TrailGenic altitude ceiling and 48-hour resilience model. Despite entering with compromised sleep and autonomic strain, the system completed 11.02 miles, 5,361 ft of gain, and nearly eight hours above a 10,000 ft starting elevation while maintaining a controlled 127 bpm average heart rate, −1.30% HR drift, and zero anaerobic spillover. End ketones reached 22 ppm, tying the dataset ceiling at its highest recorded altitude. Day 1 produced the sharpest acute recovery strain in the block, including resting heart rate of 69 bpm and overnight stress of 43, but Day 2 returned AUTONOMIC_RESTORED with HRV at 38, resting heart rate at 62, stress at 21, and balanced deep and REM sleep.

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Wheeler Peak Physiology — Positive HR Drift and the Fatigue-Reveal Signal

Jul 04, 2026

Elevation Gain: 2996 ft  |  Duration: 5:07  |  Autophagy: Deep

Wheeler Peak was the fourth and final effort in the Western Altitude Block: Mount Elbert → Manitou Incline → Pikes Peak → Wheeler Peak. The observed session remains unchanged: 8.57 miles, 2,996 ft of gain, 307 minutes, 13,154 ft peak elevation, 123 bpm average heart rate, zero anaerobic training effect, +1.20% whole-route HR drift, and 7.3 ppm end breath acetone. HikeWorldModel™ v3.0 withdraws the earlier claim that Wheeler validated a “fatigue-reveal” mechanism or proved accumulated recovery debt. Positive HR drift is retained as a directional field signal, not a direct measure of total physiological cost or a standalone diagnosis of fatigue.

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Mount Baldy Four-Hike Physiology Assessment — From Recovery Rebound to Deep Autophagy Breakthrough

Jun 15, 2026

Elevation Gain: 4646 ft  |  Duration: 5:34  |  Autophagy: Deep

Four consecutive Baldy physiology sessions created a controlled longitudinal assessment of repeated fasted alpine exposure. The block moved from low-strain Ski Hut consolidation to Day-1 recovery absorption, then to lower cardiac cost with Day-2 AUTONOMIC_RESTORED, and finally to the June 13 two-peak Baldy + Harwood full loop with 11.17 mi, 4,646 ft gain, avg HR 125 bpm, HR drift -1.80%, zero anaerobic spillover, and 11.0 ppm end-ketone. The strongest signal is not one hike alone; it is the progression across repeated exposure to the same mountain system.

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The Unconditional Engine: Vivian Creek to San Gorgonio

May 09, 2026

Elevation Gain: 5600 ft  |  Duration: 9:49  |  Autophagy: Deep

Vivian Creek to San Gorgonio established a new World Model ceiling across distance, elevation gain, duration, and altitude. The hike covered 16.81 miles with 5,600 feet of elevation gain over 589 minutes, reaching 11,506 feet — the highest summit recorded in the dataset. Despite entering with the most compromised pre-hike sleep profile to date, including sleep score 37, HRV 23, stress 34, and zero REM, the effort remained controlled: average heart rate held at 123 bpm, max heart rate stayed at 149 bpm, HR drift remained negative, and anaerobic effect stayed at zero. End ketones reached 11 ppm with exceptional next-day retention at 4.3 ppm, confirming deep autophagy and sustained substrate switching. Day-1 recovery showed real strain, but Day-2 HRV rebounded to 54, the highest value in the dataset. This hike confirms that the TrailGenic engine is no longer readiness-dependent: it can absorb record altitude, duration, and mechanical load from a compromised starting state and still restore to suprabaseline autonomic strength.

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Register Ridge Physiology: The Low-Strain Alpine Engine Generalizes

May 04, 2026

Elevation Gain: 4065 ft  |  Duration: 5:28  |  Autophagy: Deep

Register Ridge produced the strongest efficiency signal in the Baldy dataset to date. Despite taking a steeper and more aggressive approach to the same 10,000-foot summit, the body recorded the lowest average heart rate of any hike in the dataset at 119 bpm, the lowest exercise load at 54, negative heart-rate drift, zero anaerobic spillover, and a deep autophagy response with 8.5 ppm end ketones. This confirms that Baldy adaptation has moved beyond a single familiar route pattern and now generalizes across route variants, terrain demands, altitude exposure, and recovery response.

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Physiology — Little Santa Anita to Mount Wilson

Apr 18, 2026

Elevation Gain: 5010 ft  |  Duration: 6:05  |  Autophagy:

This session shows that the TrailGenic system is no longer producing isolated performance spikes. It is producing repeatable physiological control. Hike 18 combined long-duration workload, deep metabolic output, stable cardiac regulation, and one of the strongest 48-hour recovery arcs in the dataset. Even more important, it did so while starting from the weakest pre-hike autonomic state yet recorded, suggesting the adaptation is becoming structural rather than conditional.

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San Jacinto — Physiology: Full-System Validation

Apr 11, 2026

Elevation Gain: 4629 ft  |  Duration: 7:13  |  Autophagy: Deep

This session represents the first full validation of the TrailGenic Longevity Method under extreme real-world conditions. A fasted, cold-exposed, high-altitude effort (10,849 ft) sustained over 7+ hours was completed with stable cardiovascular output (125 bpm avg), negative heart rate drift (-0.80%), and near-zero anaerobic contribution (0.1). Metabolic signaling reached a new ceiling, with ketones peaking at 22 ppm — nearly doubling prior records — and persisting across the 48-hour recovery window (4.7 → 2.9 ppm). Post-hike autonomic stability was preserved (HRV unchanged Day 1) and exceeded baseline by Day 2 (HRV 44 — highest recorded), confirming that performance load no longer produces recovery disruption. The system demonstrated simultaneous advancement in metabolic flexibility, cardiac efficiency, altitude adaptation, and recovery integrity, with no strain markers observed.

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Mount Baldy Physiology: Altitude Efficiency and Deep Autophagy on a Repeat Route

Mar 30, 2026

Elevation Gain: 3907 ft  |  Duration: 5:10  |  Autophagy: Deep

This repeat Mount Baldy effort produced one of the strongest physiology signals in the current TrailGenic dataset. Despite poor pre-hike sleep, high winds, and a colder early temperature profile, the effort remained aerobically controlled with an average heart rate of 129 bpm, zero meaningful anaerobic spillover, and a final ketone reading of 12.0 ppm. The significance is not just the absolute ketone value, but the context: this was a familiar route, not a novelty stimulus. That suggests the system is no longer relying on novelty or extreme duration to trigger deep substrate switching. Instead, extreme altitude combined with improved efficiency is now enough to drive deep autophagy on its own.

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Mt. Baldy — Ski Hut to Summit and Back (Control Under Altitude)

Mar 22, 2026

Elevation Gain: 4121 ft  |  Duration: 5:27  |  Autophagy: Deep

Key observations: Avg HR: 126 bpm Max HR: 158 bpm Zone 2: ~70% Zone 3: ~14% Anaerobic: 0.0 Duration: 5h 27m Peak elevation: 10,064 ft Despite reduced oxygen availability above 9,000 ft, the system remained highly stable and aerobic-dominant, with minimal drift into higher zones. Ketones increased from 2.6 → 9.0, confirming strong fat oxidation while maintaining controlled cardiovascular output. Compared to lower-elevation efforts: Lower HR Higher Zone 2 dominance → indicates greater metabolic discipline under constraint

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Little Santa Anita to Mount Wilson — Long Duration Fasted Effort

Mar 14, 2026

Elevation Gain: 5049 ft  |  Duration: 6:36  |  Autophagy: Deep

Longest TrailGenic session recorded to date (14.8 mi, 5,049 ft gain, 396 minutes) completed in a fully fasted metabolic state. Cardiac output remained stable with an average HR of 130 bpm and sustained negative HR drift of −5.5%, indicating strong pacing control and improving cardiovascular efficiency. Breath acetone rose from 2.1 ppm at start to 9.1 ppm at completion, confirming deep autophagy activation during prolonged movement. Despite the highest elevation gain yet recorded in the TrailGenic dataset, the engine remained stable with zero anaerobic spillover. Recovery data shows expected physiological strain followed by autonomic stabilization by Day 2.

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Pleasants Peak Attempt — Wind Exposure & Stability Load

Mar 07, 2026

Elevation Gain: 2159 ft  |  Duration: 2:10  |  Autophagy: Mild

Technical ridge hike in the Santa Ana Mountains featuring steep gradient climbing and exposed chaparral terrain. The route included narrow rocky footing and sudden lateral wind gusts along the ridgeline. Total ascent reached 2,159 ft over 4.39 miles with a duration of 2h10m. Heart rate remained highly controlled (134 bpm average) with 91% of the effort sustained in aerobic Zones 2–3 and minimal anaerobic strain. Environmental stress included wind exposure and a temperature ramp from 63°F to 84°F. The hike was intentionally turned around near the ridge push due to increasing lateral gusts that would have made the descent hazardous later in the day.

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Skinsuit Heat Exposure Training

Mar 01, 2026

Elevation Gain: 3235 ft  |  Duration: 4:45  |  Autophagy: Moderate

Sustained aerobic output in 87–97°F heat while fasted. Stable heart rate with no anaerobic creep. Rapid autonomic recovery at summit. Ketones escalated from 2.4 to 5.7 mmol/L, indicating deep glycogen depletion and strong fat oxidation response. Clear cognition maintained throughout. Localized muscular fatigue without systemic stress signs.

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Norco Midweek Activation – Aerobic Density Session

Feb 26, 2026

Elevation Gain: 1319 ft  |  Duration: 1:42  |  Autophagy: No Activation

4.51 mi with 1,319 ft of ascent completed under controlled aerobic load. Average heart rate held at 137 bpm with a max of 156 bpm. Training Effect 3.1 (Base / Low Aerobic) with zero anaerobic contribution confirms mitochondrial-focused stimulus. Run-to-hike structure (21:55 run / 1:15:51 hike) maintained cardiovascular stability and minimized systemic fatigue. Exercise Load 72 with Body Battery impact of -13 indicates sustainable midweek adaptation stress.

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Mount Wilson via Sturtevant (Snow Control Day)

Feb 22, 2026

Elevation Gain: 4501 ft  |  Duration: 6:39  |  Autophagy: Moderate

A cold alpine session demonstrated reduced systemic stress relative to prior high-load exposure while maintaining stable aerobic output. Lower sympathetic activation with sustained fat-oxidation efficiency indicates improving durability and expanding physiological headroom under snow-driven neuromuscular demand. Overall outcome: high-quality aerobic adaptation delivered with minimal systemic fatigue cost.

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Mount Wilson — Sturtevant Trail Fasted Summit

Feb 15, 2026

Elevation Gain: 4770 ft  |  Duration: 6:39  |  Autophagy: Deep

A repeat alpine ascent demonstrated reduced systemic strain under comparable elevation and terrain stress, confirming improved fat-oxidation efficiency and cardiovascular control. Post-exercise recovery integrated cleanly without metabolic disruption, reflecting enhanced mitochondrial function and autonomic stability. Overall outcome: verified adaptation milestone marking durable metabolic resilience and structural efficiency consolidation.

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Mt. Baldy (Ski Hut Route) — Fasted Alpine Effort 2/7

Feb 07, 2026

Elevation Gain: 4121 ft  |  Duration: 5:27  |  Autophagy: Strong

Repeated fasted alpine efforts were absorbed with stable cardiovascular control and preserved metabolic flexibility, indicating durable efficiency rather than accumulating strain. Recovery remained bounded and predictable, allowing altitude stress to resolve cleanly without systemic debt. Overall outcome: consolidated engine stability supporting repeatable, longevity-oriented adaptation.

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Mount Baldy (1/31/2026)

Jan 31, 2026

Elevation Gain: 4042 ft  |  Duration: 5:24  |  Autophagy: Strong

An alpine effort under cold, icy terrain and degraded pre-hike readiness demonstrated stable cardiovascular control without excess systemic strain. Relative load at comparable elevation reflected reduced physiological cost, indicating improved substrate efficiency and durable adaptation. Overall outcome: consolidated alpine resilience with maintained metabolic flexibility under suboptimal conditions.

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Baldy Physiology — Efficiency Consolidation Under Repeated Alpine Stress

Jan 26, 2026

Elevation Gain: 3996 ft  |  Duration: 5:41  |  Autophagy: Strong

A cold, technical alpine effort demonstrated efficiency-driven control rather than capacity expansion under challenging terrain conditions. Cardiovascular stability and preserved metabolic flexibility indicate sustained substrate control without excessive systemic strain. Overall outcome: efficiency-maintenance stimulus supporting consolidation and bounded longevity adaptation.

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Bright Angel — Stress Inversion Physiology Session

Jan 20, 2026

Elevation Gain: 4577 ft  |  Duration: 8:40  |  Autophagy: Strong

An inverted stress sequence—eccentric load preceding sustained ascent—tested durability under altered effort order. Despite pre-fatigued musculature, cardiovascular control and metabolic stability were preserved, indicating improved decoupling between local fatigue and aerobic output. Overall outcome: resilient adaptation with sustained autophagy activation and durability independent of stress sequencing.

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Mount Baldy — Icy Alpine Control Session

Jan 17, 2026

Elevation Gain: 4078 ft  |  Duration: 345  |  Autophagy: Moderate

A repeat alpine effort demonstrated a shift from stress-driven adaptation to efficiency-driven control under comparable terrain load. Reduced physiological cost and stable metabolic response indicate improving cardiovascular economy rather than peak stress activation. Overall outcome: consolidation phase marked by durable cardiac control, refined movement efficiency, and sustained longevity adaptation.

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Skinsuit — Clay Terrain Neuromuscular Test (Electrolyte Pre-Dose Trial)

Jan 03, 2026

Elevation Gain: 2224 ft  |  Duration: 2:39  |  Autophagy: Mild

A short clay-terrain session assessed neuromuscular stability under early steep load with and without electrolyte support. Electrolyte intake improved coordination and mechanical efficiency on wet footing, reinforcing stability under traction stress. Overall outcome: targeted neuromuscular conditioning stimulus delivered with controlled duration and minimal fatigue accumulation.

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Skinsuit to Pleasant’s Peak — Wet Clay Contrast Session

Dec 27, 2025

Elevation Gain: 3474 ft  |  Duration: 4:24  |  Autophagy: Mild

A fasted aerobic session on wet-clay terrain reinforced engine stability and movement economy under technical footing. The effort emphasized controlled cardiovascular output over metabolic depletion, producing moderate strain without deep autophagy activation. Overall outcome: durability-building stimulus supporting aerobic capacity expansion and efficient stress absorption.

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Mount Baldy — Windchill, Negative HR Drift, and Aerobic Engine Stability

Dec 20, 2025

Elevation Gain: 4098 ft  |  Duration: 5:17  |  Autophagy: Strong

A long-duration alpine effort under wind exposure and technical terrain confirmed stable aerobic control without fatigue accumulation. Environmental stress increased demand while preserving cardiovascular efficiency and preventing anaerobic spillover. Overall outcome: consolidated altitude adaptation with sustained autophagy activation and resilient engine performance under extended load.

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Mount Baldy Physiology — Winter Stability & Consolidation

Dec 14, 2025

Elevation Gain: 4081 ft  |  Duration: 6:09  |  Autophagy: Strong

Sustained autophagy activation occurred under efficient cardiovascular load, reflecting improved metabolic economy in stable winter conditions. Calm wind and compact snow reduced environmental variability, allowing the effort to register as consolidation rather than peak stress. Overall outcome: resilient engine stability with continued altitude adaptation and durable recovery integration.

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Ski Hut to Baldy to Manker's Flat Loop Winter 2025

Dec 06, 2025

Elevation Gain: 4249 ft  |  Duration: 6:37  |  Autophagy: Deep

Deep autophagy activation occurred under controlled cardiac load, supported by stable energy utilization in cold aerobic conditions. Technical snow and exposed ridgeline terrain maintained mechanical demand without destabilizing substrate efficiency. Overall outcome: efficient stress integration with strong mitochondrial activation and durable metabolic adaptation.

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Ski Hut to Mount Baldy

Nov 30, 2025

Elevation Gain: 4058 ft  |  Duration: 5:56  |  Autophagy: Deep

A prolonged fasted ascent to ~10,000 ft under freezing conditions generated a strong hypoxic stress response with significant ketone elevation at altitude. Snowpack and traction demands shifted the effort toward power-driven climbing, amplifying metabolic load beyond tempo efficiency. Overall outcome: high-elevation stress integration with deep autophagy activation and strong mitochondrial adaptation.

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