Governed hypotheses and results

Completed 55-comparison mobility experiment

Loading reviewed value · Loading reviewed value · Loading reviewed value vertical RMS

Mall No-Steps skating versus pain-limited Walking: all 55 matched dates agree for each of these three ACC-clock-independent comparisons. Mall medians: 2.003 miles, 34.1 minutes, 0.0520 g. Walking: 0.141 miles, 5.57 minutes, 0.1382 g.

Exact frozen values, confidence intervals, inferential methods and provenance

Kubios confirms Custom Measurement is designed to request 50 Hz ACC from the Polar H10, while Readiness requests 200 Hz. Kubios reports that the most probable explanation for approximately 200 XYZ records per second in affected Custom KDF files is a software/hardware configuration mismatch in which the H10 may have remained at 200 Hz. Kubios has requested representative Custom and Readiness native KDF files and is investigating; the cause is not yet confirmed. Absolute jerk (g/s), rates, filtered or cropped tails, spectra, timing-dependent dose and dependent FSI/CSS/Tensor outputs remain under forensic review. Historical values and classifications are preserved; they are not validated final physical-time findings. The frozen triplet distance, event-clock duration and whole-record vertical RMS findings do not depend on the unresolved ACC clock.

How quickly do mobility states become distinguishable?

SURF-GEN-01: PARTIALLY_SUPPORTED · validation PASS

With FULL features, Gaussian predictive discrimination converged at 5 triplets; complete geometric maturity required 35: a 30-triplet gap. Removing distance and duration moved predictive convergence to 40 triplets, while geometric convergence remained at 35. Early FULL discrimination therefore depends strongly on exposure information.

The paired experiment asks how measured functional/mechanical outcomes differ. Surfaceology asks when states become predictively and geometrically distinguishable, under which feature assumptions. Neither program replaces the other.

Mall: PROVISIONAL; Walk: PROVISIONAL; PT: QUALIFIED. PVC shift: PERSISTENT.

55 accepted triplets; 54 complete model trajectories: 44 development, 5 PVC-01 and 5 continuation. One development triplet lacks PT RMS and is excluded whole, without imputation.

Transportation exposure — historical discovery pass

New separately validated result: TRANSPORT-RMS-01: H-TR-A through H-TR-D, clock-independent whole-record RMS. The discovery status and readiness matrix below describe the prior pass, not the new frozen RMS analysis.

Discovery only. Final timing-dependent inference: BLOCKED_PENDING_MEASUREMENT_AUTHORITY.

The operator reports greater pelvic/SI-region pain and discomfort in Bus, Van, constrained Sedan/Taxi seating and SilverRide Back than SilverRide Front or Motorcycle. This is reported context, not an independently validated causal ranking.

Body coupling, constrained seating, axis structure, repeated transients, duration and load-path organization may matter beyond acceleration magnitude. Mechanism is not established.

Kubios confirms Custom Measurement is designed to request 50 Hz ACC from the Polar H10, while Readiness requests 200 Hz. Kubios reports that the most probable explanation for approximately 200 XYZ records per second in affected Custom KDF files is a software/hardware configuration mismatch in which the H10 may have remained at 200 Hz. Kubios has requested representative Custom and Readiness native KDF files and is investigating; the cause is not yet confirmed. Absolute jerk (g/s), rates, filtered or cropped tails, spectra, timing-dependent dose and dependent FSI/CSS/Tensor outputs remain under forensic review. Historical values and classifications are preserved; they are not validated final physical-time findings. The frozen triplet distance, event-clock duration and whole-record vertical RMS findings do not depend on the unresolved ACC clock.

Whole-record RMS is clock-independent, but no final Bus/Van/Sedan versus Motorcycle/SilverRide Front ranking is authorized by this publication pass. Materialized episodic coverage: {"BUS": 22, "MOTORCYCLE": 8, "SEDAN_TAXI_UNKNOWN": 26, "SILVERRIDE_BACK": 2, "SILVERRIDE_FRONT": 7, "SILVERRIDE_UNKNOWN": 1, "VAN_CUTAWAY": 6}. These are sessions, not independent dates; sedan seating remains unknown.

Continuing research

FNS/SNS and pre/post ride protocols remain separate continuing experiments. Entropy/complexity is a research program; no new entropy or FSI/CSS claim is published here.

Limitations and provenance

• Repeated N-of-1 observations do not establish population-wide or causal effects.
• Surfaceology tests state distinguishability and maturation; it does not independently validate every paired biomechanical hypothesis.
• A frozen-reference maturity threshold is not a universal minimum sample size.
• Canonical FSI/CSS/Tensor retain their existing definitions. No new scalar, clinical outcome, entropy result or replacement model is introduced.
• Transportation seat labels are context, not measured pain. Motorcycle may show high amplitude despite greater reported tolerance; this motivates a hypothesis, not a proven mechanism.

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  "publication_scope": "aggregate summaries only; original scientific artifacts remain immutable",
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Transportation: localized exposure evidence

Explore SURF-TRANS transportation states and the V8 absolute localized result. These are separate from the ambulation hypotheses and do not change their classifications.