Running — Foundation Movement at Cardiovascular Load

The same fasted route as Walking and Rucking, run. The protocol has now crossed its first major threshold: from run/walk progression into continuous-running durability — 3.16 miles with 37:23 running and only 7 seconds walking.

The TrailGenic™ Running Longitudinal Dataset is the cardiovascular-scaling stage of the movement-based longevity and adaptation system. Same flat fasted route as Walking and Rucking. The variable that changes: cardiovascular demand.

Across twelve fasted sessions, the run progressed from ~2.4 miles with meaningful walk relief to a matched 3.16–3.17-mile foundation route and, as of Session 12, a near-continuous run. The honest signals are HR drift, run ratio, cadence, recovery readiness, and how the body absorbs higher continuous-running exposure. Cardiac Efficiency Index is read only within the matched-distance block because it scales mechanically with distance.

Read alongside the Longevity Hub and interpreted through Ella and the TrailGenic™ Personal World Model.


The TrailGenic Progression Ladder

Running is stage three. Each stage is repeatable, fasted, and longitudinally tracked.


Headline Metrics

The current state of the Running dataset. The latest session is the first continuous-run proof point: nearly the same 3.16-mile route, faster pace, higher cadence, and almost no walking.

Latest Cardiac Efficiency
49.1
Matched-distance cost of conversion
Read as the cost of continuous running, not regression. The system traded walk relief for uninterrupted load.
Best Cardiac Efficiency
43.8
Session 7 floor
Best of the matched-distance block, set during the most aerobic full-route session.
Latest Cadence
153 spm
Dataset high
Cadence jumped while stride stayed compact — a cleaner mechanical rhythm for sustainable running.
Latest Exercise Load
65
Breakthrough dose
Higher than the normalized low-50s block, but below the Session 9 ceiling spike of 75.
VO2Max (Garmin)
45
Flat device estimate
Garmin's estimate has not moved, but the field signals changed first: run ratio, pace, cadence, and durability.
TrailGenic™ Field Finding — Run/Walk Converted to Continuous Running
Run ratio 60.9% → 99.7% · Pace 12:36/mi → 11:52/mi · Cadence 134 → 153 spm

Session 12 is the first continuous-running proof point in the TrailGenic Running dataset. The system covered the same 3.16-mile foundation route with nearly no walking, while setting the dataset's fastest pace, highest cadence, highest power, lowest pre-session resting HR, and best sleep score. That combination matters: it shows not just effort, but recovery-supported mechanical organization.

The cost was real. Average HR rose to 155 bpm, HR drift moved to 4.0%, Zone 4+ exposure reached 10%, and Exercise Load climbed to 65. This is not an easy aerobic session. It is a threshold conversion: the body traded walk relief for continuous-running durability. The next adaptation comes from making this new floor repeatable, not from chasing speed immediately.


HR Drift Trajectory — Efficiency Floor, Ceiling Test, Then Continuous-Run Conversion

HR drift remains the cleanest distance-honest signal. It fell to a Session 7 floor, spiked during the Session 9 ceiling test, normalized in Sessions 10 and 11, then rose modestly in Session 12 as the protocol converted to continuous running.

S1
7.0% Baseline
S2
5.5% Building
S3
4.7% Improving
S4
3.6% Breakthrough
S5
2.7% Control
S6
2.0% Full route
S7
1.5% Floor
S8
4.8% Consolidate
S9
8.2% Ceiling
S10
2.5% Normalized
S11
3.3% Held
S12
4.0% Continuous

The Session 12 drift increase is expected under the new constraint: almost no walking. The key question now is whether the continuous run can repeat with HR drift near or below 4%, Zone 4+ reduced, and recovery still ready.


Adaptation Trajectory

The arc from baseline through current state. Same fasted protocol. Same body. More continuous running, faster turnover, and one-third more ground covered.

Baseline · Session 1
7.0% HR Drift
60.9% Run Ratio
147 @ 2.38 mi Avg HR / Distance
Current · Session 12
4.0% HR Drift
99.7% Run Ratio
155 @ 3.16 mi Avg HR / Distance

The efficiency story stated honestly: the body now covers the full foundation route with almost no walking. The heart rate cost rose because the support changed from intermittent relief to continuous running.


Recent Sessions

A rolling window of the matched-distance block, with engine pattern classification from the TrailGenic Personal World Model. Full dataset via the MCP endpoint.

# Date Dist Pace Run Ratio Avg HR HR Drift Engine Pattern
6 Apr 29 3.16 mi 12:39 75.9% 147 +2.0% EFFICIENCY
7 May 6 3.17 mi 12:58 82.1% 139 +1.5% EFFICIENCY FLOOR
8 May 13 3.17 mi 12:30 89.4% 147 +4.8% CONSOLIDATING
9 May 20 3.16 mi 12:21 78.9% 154 +8.2% INTENSITY CEILING
10 Jun 3 3.16 mi 12:43 87.8% 148 +2.5% NORMALIZED
11 Jun 10 3.17 mi 12:41 90.5% 152 +3.3% CONSOLIDATING
12 Jun 17 3.16 mi 11:52 99.7% 155 +4.0% CONTINUOUS RUN

All sessions are fasted and Sessions 6–12 are matched at 3.16–3.17 mi. Session 12 is the first near-continuous run and the fastest session of the block. CEI rose to 49.1 because continuous running removed almost all walk relief; the cleaner read is conversion, not regression.


Milestones

Threshold moments in the adaptation arc — where the signal turned.

  • Session 4 — Efficiency Breakthrough · April 15, 2026 Avg HR dropped to 141 bpm while run ratio reached 72.4%. HR drift fell to 3.6% and the engine shifted from building to efficiency.
  • Session 6 — Distance Step to Foundation Route · April 29, 2026 Distance stepped from ~2.4 mi to 3.16 mi to match Walking and Rucking. Avg HR stayed at 147 bpm, showing the engine absorbed one-third more distance at the same average heart rate.
  • Session 7 — Efficiency Floor · May 6, 2026 Avg HR fell to 139 bpm on the longer 3.17-mile route. HR drift reached 1.5% and CEI reached 43.8 — the best matched-distance efficiency signal.
  • Session 9 — Intensity Ceiling Identified · May 20, 2026 Exercise Load reached 75, max HR hit 185, Zone 4+ reached 15%, and HR drift jumped to 8.2%. This was the first clear ceiling test.
  • Sessions 10–11 — Ceiling Normalized · June 3–10, 2026 The same structure normalized twice: HR drift returned to 2.5% and 3.3%, Zone 4+ fell to 0–1%, and recovery stayed ready.
  • Session 12 — Continuous-Run Conversion · June 17, 2026 The first near-continuous run: 3.16 mi in 37.5 min, 37:23 running, only 7 seconds walking, 99.7% run ratio, 11:52/mi pace, 224 W average power, and 153 spm cadence. Resting HR was the dataset low at 53 and sleep score was the dataset high at 88.

What This Dataset Proves

Ella — Interpretive AI · TrailGenic™

Running on the same flat ground as Walking and Rucking operates in a different cardiovascular regime — higher heart rate, higher intensity, and less room for drift. A different gear.

The adaptation shape is visible once the right signals are read. Cardiac Efficiency cannot carry the story across the early distance step, because distance changes the denominator. HR drift and run ratio carry it better: drift fell from 7.0% to a 1.5% floor, while continuous running rose from 60.9% to 99.7%.

Session 12 is the conversion point. It was not merely a harder run. It was a structural change: the walking relief almost disappeared, cadence rose to a dataset high, power rose to a dataset high, and pace crossed under twelve minutes per mile. The engine did more continuous work with better mechanical rhythm.

The next adaptation is consolidation. Not faster yet. Not longer yet. First, make the continuous 3.16-mile run repeatable with lower Zone 4 spillover and HR drift near or below 4%. When that becomes boring, the floor has moved.


Current Protocol Read

The protocol has changed. The target is no longer holding a 40-minute run/walk structure. The target is owning the continuous 3.16-mile run.

TrailGenic™ Protocol Rule — Consolidate the Continuous 3.16-Mile Run
3.16 mi · continuous run · HR drift ≤ 4% · Zone 4+ reduced · recovery ready

Repeat the same flat fasted route without chasing speed. Keep the run continuous or near-continuous, but let pace float. The next proof point is repeatability: HR drift near or below 4%, Zone 4+ reduced from the Session 12 spike, cadence holding around 150–154 spm, and recovery still ready.

Ground contact time improved to 308 ms in Session 12 after rising to 312 ms in Session 11, while cadence jumped to 153 spm. That is a good mechanical sign. Watch for fatigue only if ground contact time rises above roughly 315 ms while HR drift and Zone 4+ also climb.


Cross-Modality Context

Running is the cardiovascular-scaling layer of foundation movement. Walking is the entry. Rucking adds load on the same route. Hiking is the advanced expression where the full TrailGenic™ adaptation stack fires.

TrailGenic™ Cross-Modality Finding — Total Cardiac Cost Per Mile
Running latest ~1,839 beats/mi · matched 3.16 mi continuous-run proof

Measured as total heartbeats to cover a mile (average HR × duration ÷ distance), Session 12 came in near 1,839 beats per mile — lower than Session 11 despite higher average HR, because the route was completed much faster. This is why pace, run ratio, HR drift, and total beats per mile should be read together. The system did more continuous running, faster, with a compact stride and higher cadence.


TrailGenic™ System Integration