Field cases

Ecological data, with the confounders left in.

The purpose of a field case is not to imitate a controlled trial. It is to expose the reasoning that connects a rider’s data to the next operational decision.

Performance analysis — not medical diagnosis.Any functional finding with clinical relevance requires interpretation by qualified medical staff.
CASE 01

TWO-MONTH VST TRAJECTORY

A 22-year-old climber: restored ventilatory reserve through lower equivalent-power cost while structural obstruction remained under medical governance.

OPEN CASE
METHOD

Matched ramps, threshold work and repeated field references were compared across the intervention period.

OPERATIONAL DECISION

Continue the trained pattern, preserve the medical boundary and reassess the residual expiratory constraint.

CASE 02

ALTITUDE CAMP · DAY 12

A long WorldTour session separates demand-driven Rf drift from loss of tidal-pattern stability and generates a testable recovery intervention.

OPEN CASE
METHOD

Power, Rf, tidal trend, VE proxy, altitude exposure and accumulated load were read over comparable domains.

OPERATIONAL DECISION

Treat the day-state rather than the rider as a trait; reduce the immediate target and verify recovery the next morning.

CASE 03

NASAL / ORAL · VT1

Route-specific efficiency tested indoors and outdoors, including the confounding effect of TT position on thoracic belt signal.

OPEN CASE
METHOD

Matched nasal–oral blocks were cross-checked against gas exchange and route-specific belt calibration.

OPERATIONAL DECISION

Use the route only inside its measured feasibility window; do not transfer an uncalibrated tidal ratio between positions.

CASE 04

30-SECOND REPEATED EFFORTS

Acute strategies examined before, during and after supra-maximal work, with power and VO₂ recovery read together.

OPEN CASE
METHOD

Repeated efforts without and with strategy were compared, including power maintenance and the 30-second post-effort VO₂ response.

OPERATIONAL DECISION

Retain only the sequence that improves repeatability or recovery without compromising peak work.

CASE 05

LONGITUDINAL MONITORING

Repeated warm-up ramps and threshold blocks track whether a new ventilatory pattern survives heat, fatigue and training load.

OPEN CASE
METHOD

Fixed comparison windows expose change at equivalent power rather than relying on session averages.

OPERATIONAL DECISION

Recalibrate targets when the pattern no longer survives the rider’s real load context.

CASE 06

FIELD CALIBRATION

Device agreement is treated as condition-specific: frequency can be robust where uncalibrated tidal units remain trend-only.

OPEN CASE
METHOD

Reference and wearable signals are paired by stable windows, route, position and intensity before agreement is quantified.

OPERATIONAL DECISION

Use validated frequency in real time; keep uncalibrated tidal units for intra-athlete trend reading only.

Inside the monitoring system

Three cockpit layers. One operational reading.

The report does not stack isolated metrics. Each cockpit answers a different question: what the athlete can mobilise, how the pattern changes across comparable work, and which axis should govern the next intervention.

Real WorldTour field data. Athlete name, date, team context and identifying characteristics have been removed. No complete confidential report is published.

Anonymised monitoring extract

A report must change the next decision.

The value is not the number of charts. It is the ability to show what improved, what still fails under accumulated load and what the staff should test next.

ProgressionRf −33% at equivalent power
Residual limitVE not stabilised after repeated 430 W
Operational outputRevised CP, VST target and next reassessment
Anonymised HNS monitoring extract showing achieved gains, residual limitations, physiological profile and training directions
Selected decision layer from a confidential longitudinal file. Identity, team context and personal characteristics are excluded; the underlying report is not downloadable.