Sixty seconds of a measured test
Darby Voeks, VO₂ Master treadmill test, October 2026. Reported VO₂ max 77.5 mL/kg/min. Figures on screen come from his test report; the watch figure shown is an estimate and is labeled as one. This is a different athlete from the record below.
Filmed with the athlete's consent. Proto is not a medical device and nothing in this film is a medical conclusion.
PROTO WALLET · TREADMILL TEST RECORD · 9/10/2026
Your VO2 test, with its context.
Ryan Hooks, 41 M · founder, published on purpose · VO₂ Master treadmill export
Drop a VO₂ Master export here to preview the test record: the app’s .zip, or the .xlsx and Details.txt files.
Oxygen and heart rate, step by step
30 s averages · 6 speed steps · 18:31 on the belt
Review notes: 6 stages with gas data. RER unavailable. Review threshold interpretation with the testing operator.
Four recovery rows after the final stage carry heart rate without gas measurements, recorded after the mask came off, and seven trailing rows are empty. They were excluded from the peak calculation. The reported maximum of 45.2 is the app summary value; the highest 30 s average in the table is 45.1.
Recorded zones beside a formula baseline
Left: zone boundaries shown in this test record. Right: an illustrative age-based formula, not this member’s wearable settings.
VT1 and VT2 were manually adjusted in the source app. Confirm how the testing operator maps them to the five displayed zones before using those zones for training.
Wearable estimates beside the test reference
Wearables estimate VO₂ max. This record comes from a VO₂ Master treadmill test. No wearable estimate is connected to this record.
Chest strap beside the wrist
Wearable VO₂ estimates run on wrist heart rate. The chart above shows that input during the test, next to the strap the cart used. Blue is Apple Watch, amber is WHOOP, red is the strap.
Blank on purpose. No resting test result is recorded.