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.
Every session is fasted. Run/walk progression began at shorter distance and scaled to match the foundation 3.16–3.17-mile route from Session 6 onward, holding distance constant for a clean cross-modality comparison with Rucking. Across the matched-distance block, run ratio climbed from 60% to 90% while HR drift fell to a Session 7 floor, the engine consolidated in Session 8, revealed a temporary intensity ceiling in Session 9, then normalized across Sessions 10 and 11. The same engine; a different gear; a stronger recovery pattern now visible.
Read alongside the Longevity Hub and interpreted through Ella and the TrailGenic™ Personal World Model.
Running is stage three. Each stage is repeatable, fasted, and longitudinally tracked.
The current state of the Running dataset. Run/walk progression on the same flat fasted route shared across foundation modalities. Cardiac Efficiency Index scales with distance, so it is read only within the matched-distance block (Sessions 6–11) — never against the shorter early sessions.
Across eleven fasted running sessions, the protocol scaled from ~30 minutes and ~2.4 miles to ~40 minutes and the full 3.16–3.17-mile foundation route, then held distance constant from Session 6 on. The honest adaptation signals are HR drift and run ratio, both distance-independent: drift fell to a 1.5% floor at Session 7 while continuous running climbed toward 90%. Session 9 exposed the first intensity ceiling — HR drift rose to 8.2%, exercise load reached 75, max HR hit 185, and Zone 4 exposure appeared. Sessions 10 and 11 then normalized the system: drift returned to the low single digits, exercise load settled in the low 50s, Zone 4 fell to near-zero, and recovery stayed ready across both. The signal is no longer ceiling failure. It is repeatable consolidation.
Note on Cardiac Efficiency: average HR was 147 bpm at the Session 1 baseline (2.38 mi) and 148–152 across the recent matched-distance block (3.16–3.17 mi). The apparent CEI improvement from 61.8 to the high-40s is almost entirely the distance step — the heart rate barely moved. The real efficiency gain is covering one-third more distance at the same heart rate, which the run-ratio and drift signals capture directly.
The cleanest single signal in the dataset, and the one that is not distorted by distance. HR drift fell across the early block, reached a floor in Session 7, spiked during the Session 9 ceiling test, then normalized again across Sessions 10 and 11.
Drift is a within-session percentage and is comparable across distances, unlike CEI. Sessions 6–11 ran at matched 3.16–3.17 mi; the modest S11 uptick to 3.3% tracks the step up in run ratio to 90.5%, not a loss of control — max HR, Zone 4, and anaerobic effect all stayed suppressed.
The arc from baseline through current state. Same route from Session 6 on. Same fast. Different physiology — read through distance-honest signals.
The efficiency story stated honestly: a near-identical average heart rate now covers one-third more distance with continuous running up from 60% to 90.5% and drift down by half.
A rolling window of the matched-distance block (Sessions 6–11, all at 3.16–3.17 mi), with engine pattern classification from the TrailGenic Personal World Model. Full dataset via the MCP endpoint.
| # | Date | Dist | Run Ratio | Avg HR | CEI | HR Drift | Engine Pattern |
|---|---|---|---|---|---|---|---|
| 6 | Apr 29 | 3.16 mi | 76% | 147 | 46.5 | +2.0% | EFFICIENCY |
| 7 | May 6 | 3.17 mi | 82% | 139 | 43.8 | +1.5% | EFFICIENCY |
| 8 | May 13 | 3.17 mi | 89% | 147 | 46.4 | +4.8% | CONSOLIDATING |
| 9 | May 20 | 3.16 mi | 79% | 154 | 48.7 | +8.2% | INTENSITY CEILING |
| 10 | Jun 3 | 3.16 mi | 88% | 148 | 46.8 | +2.5% | NORMALIZED |
| 11 | Jun 10 | 3.17 mi | 90% | 152 | 47.9 | +3.3% | CONSOLIDATING |
All sessions fasted and at matched 3.16–3.17 mi, so the CEI column is directly comparable here. Session 9 produced the highest exercise load and drift spike in the dataset; Sessions 10 and 11 confirmed normalization with HR drift in the low single digits, Zone 4 at or near zero, and recovery ready.
Threshold moments in the adaptation arc — where the signal turned.
Running on the same flat ground as Walking and Rucking operates in a different cardiovascular regime — higher heart rate, higher intensity, and a much narrower margin for drift. A different gear.
The adaptation shape is visible once you read the right signals. Cardiac Efficiency falls when distance rises, so it cannot carry the story across the distance step. What does carry it is honest and distance-independent: drift fell to a 1.5% floor, continuous running climbed from 60% to 90%, and a near-identical heart rate now moves one-third more ground.
Session 9 was not failure. It was exposure. Sessions 10 and 11 were not random recovery. They were confirmation — twice. The body absorbed a hard cardiovascular stress test, returned to the same structure, and brought drift back under control without losing duration or recovery readiness.
This is the same engine the Walking and Rucking datasets trained. Running is not separate from the foundation system — it is the cardiovascular expression of it. Same route. Same fast. Same body. Different pressure. The next adaptation does not come from pushing faster. It comes from making the 40-minute run repeatable and cheap.
The next operating step is consolidation, not escalation. Two consecutive normalized sessions show the 40-minute structure is viable; the model should not chase speed yet. The goal is to make the current dose boringly repeatable.
Hold the current running structure for the next block: ~40 minutes, same flat fasted route, approximately 3.16 miles, perceived effort 3 out of 5, and recovery ready. The next proof point is not faster pace. It is repeatability: HR drift consistently in the low single digits, Zone 4 minimized or absent, and Cardiac Efficiency Index stable in the mid-to-high 40s at this matched distance.
One mechanical signal to watch: average ground contact time has crept from 293 ms at Session 1 to 312 ms at Session 11, even as cadence rose. So far this reads as compositional — a higher run ratio means more of each session is continuous running rather than brisk walking. It becomes a fatigue flag only if GCT climbs past roughly 315 ms while HR drift also rises; for now it is a watch item, not a problem.
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.
Measured as total heartbeats to cover a mile (average HR × duration ÷ distance), running and rucking cost almost the same — running is marginally cheaper, about 5%. The familiar "running costs roughly 1.4× the Cardiac Efficiency of rucking" gap at matched distance is an intensity-distribution story, not a total-work story: running compresses similar total cardiac work into ~40 minutes at Zone 3, while rucking spreads it across ~58 minutes at Zone 1. This comparison only holds because distance was matched from Session 6 on. (The earlier "~2× rucking" framing was a short-distance artifact and has been retired.)