Reviewed public evidence · N-of-1
Transportation burden
ParaTransit is externally generated exposure, and ride length alone does not describe its mechanical character. The frozen 59-ride reference supplies duration and one-minute distributions. May 23 was prolonged and escalated late; corrected October 2 was of ordinary-range duration but had unusually persistent corrected jerk. October 2 remains an operator-confirmed prospective observation with Strava corroboration pending, not a member of the frozen reference. Vehicle and body-coupling comparisons have their own governed cohorts. In an exploratory same-event subset, high seated activity-mean HR accompanied lower HRV summaries without a consistent ride-level mechanics shift. HR and HRV are separate physiology context; neither they nor acceleration directly measure pain. Expand each comparison for its denominator, units, window definition, uncertainty, and source identity.
Summary and explore
Two transportation signatures
TRANSPORT-BURDEN-01 V3 / TRANSPORT-PHYSIO-MECH-01 V5 / Oct2 prospective v1 · historical reference rides: 59, prospective observations: 1 · units: separate units
Different units or populations; these values have no shared numeric axis.
Explore values, uncertainty and limits
| Measure | Value |
|---|---|
| May 23 ride duration | 5573.0 |
| May 23 late episode (minutes) | 24 |
| October 2 corrected duration | 2450 |
| October 2 corrected jerk (g/s) | 6.12689 |
May 23 is a historical case; October 2 is a separate prospective comparison. No combined score.
Bus and governed SilverRide Front Seat body-coupling context
MOBILITY-200HZ-01 corrected frozen body-coupling projection; separate SURF-TRANS-02 V8 localized endpoint · bus: 25, front seat: 7 · units: source-specific
Different units or populations; these values have no shared numeric axis.
Explore values, uncertainty and limits
| Measure | Value |
|---|---|
| Bus vertical_rms_g (g) | 0.18029 |
| Bus jerk_rms_g_per_s (g/s) | 5.20221 |
| Bus shock_rate_per_min (count/min) | 105.53533 |
| Front Seat vertical_rms_g (g) | 0.1165 |
| Front Seat jerk_rms_g_per_s (g/s) | 2.67544 |
| Front Seat shock_rate_per_min (count/min) | 92.56247 |
Uncertainty: {'jerk_rms_g_per_s': [1.531041761923283, 2.3996759995802326], 'shock_rate_per_min': [0.8700062070009388, 1.3266614033808959], 'vertical_rms_g': [0.7845973789157562, 1.6710522966857]}
Whole-record vertical RMS and shock-rate ratio intervals cross one; session-resampled intervals are not date-block intervals. Sparse seat/pain context is not a causal estimate.
Exploratory physiology signal
High seated HR and separate HRV context
Subject-specific investigation reference prompted by unexpectedly high cardiovascular response while seated in externally generated transportation; not a universal clinical or pain threshold.
Accepted same-event links: 11 higher-HR and 44 lower-HR sessions. High-minus-lower medians: RMSSD -26.93 ms, SDNN -36.76 ms, pNN50 -7.79 percentage points. RMS, corrected jerk, shock, cumulative shock and duration did not show a clear corresponding group shift; date-block intervals cross zero.
Explore HRV and mechanics medians, IQRs and date-block intervals
| Measure | Mean HR ≥100 bpm | Mean HR <100 bpm | Difference [95% interval] |
|---|---|---|---|
| RMSSD (ms) | 9.98 [IQR 5.22–19.07] | 36.91 [IQR 24.01–87.98] | -26.93 [-39.25, -10.57] |
| SDNN (ms) | 28.94 [IQR 22.60–33.54] | 65.70 [IQR 49.09–76.89] | -36.76 [-46.36, -27.34] |
| pNN50 (percentage points) | 0.61 [IQR 0.15–1.39] | 8.39 [IQR 1.27–59.87] | -7.79 [-12.48, -2.91] |
| Vertical RMS (g) | 0.128 [IQR 0.123–0.177] | 0.160 [IQR 0.137–0.181] | -0.033 [-0.048, 0.031] |
| Corrected jerk (g/s) | 0.739 [IQR 0.570–0.958] | 0.807 [IQR 0.578–1.136] | -0.069 [-0.344, 0.266] |
| Shock rate (per minute) | 24.35 [IQR 19.40–27.88] | 23.77 [IQR 21.59–26.87] | 0.58 [-5.36, 7.29] |
| Cumulative dynamic shock (native metric scale) | 365.14 [IQR 346.30–438.45] | 446.06 [IQR 353.80–733.11] | -80.92 [-320.64, 41.82] |
| Duration (minutes) | 39.00 [IQR 33.00–48.00] | 37.00 [IQR 33.00–43.25] | 2.00 [-4.00, 6.00] |
Accepted same-event links are an exploratory subset. HR and HRV do not measure pain; no separately governed same-event pain or seat context is linked. Continuing prospective data will test whether this separation persists.
Governed result: TRANSPORT-HR-CONTEXT-01 · status: EXPLORATORY_PUBLIC_PROJECTION_APPROVED.
Reviewed reference values
Explore headline values and their units
- Mall/Walking ratio of medians
- 14.1728 ×
- Historical transport rides
- 59 rides
- Mall skating median distance
- 2.0026 miles
- Mall vertical RMS
- 0.05199422678336572 g
- Matched dates
- 55 dates
- May 23 late sustained mechanical episode
- 24 minutes
- May 23 subsequent HR change
- 10.0946 bpm
- May 23 subsequent SDNN change
- 54.2489 ms
- Corrected October 2 duration
- 40:50 mm:ss
- October 2 duration percentile
- 64.4068 empirical percentile
- October 2 corrected jerk
- 6.1269 g/s
- October 2 corrected jerk above historical one-minute P75
- 35.7436 observed minutes
- October 2 corrected jerk above historical one-minute P90
- 16.9103 observed minutes
- October 2 corrected jerk percentile
- 93.2203 empirical percentile
- Walking higher RMS dates
- 55 of 55 dates
- Walking median distance
- 0.1413 miles
- Walking vertical RMS
- 0.13820607087274947 g
- ParaTransit WHOOP dates
- 112 dates
- Activity means ≥100 bpm
- 33 sessions
- Median activity mean HR
- 87.0 bpm
- ParaTransit WHOOP sessions
- 161 sessions
Methods and provenance
Methods and provenance
Publication status: REVIEWED_PUBLIC_SITE_PROJECTION. Latest reviewed observation: 2026-10-02. The legacy graph registry retains its separate 2026-09-17 cutoff.
Reviewed resource hash: 9515359e327b17542d7ae2d008a372916245ac610b8aa2cd4f5987a3e4e8a6cb. Topic projection hash: d773b8e41e014000e9a6725adcc20524090214b17543e1243da049533c1b9bd6.
Source runs: 20261005T-VIS-MOB-01-V2, 20261005T-TRANSPORT-BURDEN-01-V3, 20261005T-TRANSPORT-PHYSIO-MECH-01-V5, 20261005T-TRANSPORT-CONTEXT-01-V5, TRANSPORT-HR-CONTEXT-01-V1, 20261002-v3-reference-v1, MOBILITY-200HZ-01.
Measurements describe observed function, mechanics, physiology and exposure at distinct grains. They do not directly measure pain or internal joint force.
Publication manifest