01 – The Problem, And What We Are Building
Five broken links.
One measurement layer.
Between an athlete's body and a decision that matters, the measurement chain breaks in five places. Sensors that disagree where it counts. Data locked in five separate apps. No agreed measure of what the body actually took. Preparation prescribed without a personal baseline. And little practical way to get it off the mountain.
Most altitude and hypoxic-training metrics in use today combine altitude with exposure time and stop there – ignoring how your individual physiology actually responds to the stimulus. We measure the response, not just the room.
01 – Sense
Sensors disagree where it matters
The market offers plenty of sensors. Reliable capture at the extremes is another thing: in independent 2025 lab testing – at rest, in controlled conditions – none of four medically approved finger oximeters met the agreement test between 55% and 70% saturation. Our own field capture degraded in cold and motion.
For the critical oxygen channel we record a medical-grade reference alongside the wearable under test, so agreement is measured rather than assumed. It does not eliminate sensor error.
Oximeter agreement: Vikne et al., PLOS ONE, 2025.02 – Combine
Devices keep their own data
Makers typically keep their readings inside their own app, so the merge happens after the event and by hand. Our own field records took vendor CSV exports, e-mail and manual time alignment before anyone could look at them together.
We bring selected sensor feeds onto a common clock, live. Three independent sensors, one timeline, captured as it happens.
03 – Interpret
The dose goes unmeasured
Altitude sickness is still assessed mainly from self-reported symptoms, and the field has no agreed personal measure of internal hypoxic stress. Exposure – altitude multiplied by time – is a description of the room, not of the person in it.
Hypoxic Stress Dose (HSD) is our candidate index: time spent below your own baseline, with deeper deficits weighted more heavily. The methods paper is under revision following peer review.
04 – Learn
Preparation without a baseline
Protocols are prescribed without a personal baseline or outcome-linked evidence. In our published twin case, one twin spent 351 hours in a hypoxic tent and the other 30 – with no observable advantage on the mountain.
Recorded sessions are measured against your own baseline, and the architecture is designed to link consented symptoms and performance outcomes back to each dose record.
Twin case: High Altitude Medicine & Biology, 2026.05 – Relay
Getting the data out
Above base camp a broadband terminal is too heavy and too power-hungry to carry, and raw multi-channel telemetry does not fit a low-power radio packet budget either. The reading exists, but the people who could act on it rarely see it in time.
In development: compute a small summary on the device, then relay it. A 40-metre low-power hop is demonstrated outdoors with clear line of sight; satellite onward from base is planned.
40 m hop: our own field test, not an independent measurement.02 – Who It's For
Built for those who take
performance seriously.
Whether you're summiting Everest, racing an Ironman, or pushing personal limits on your first ultra – our approach scales to your ambition. The same scientific rigour. The same data-driven precision. Tailored to your goals.
03 – The Team
Proven backgrounds.
Real-world credentials.
Our team brings together sports science research, clinical medicine, and hands-on expedition experience – bridging the gap between laboratory and summit.
Sports Science Lead
Dr. Barney Wainwright
Leeds Beckett University. Altitude physiology researcher specialising in hypoxic training, performance testing, and environmental adaptation.
Medical Director
Dr. Patrycja Jonetzko
Consultant Cardiothoracic Anaesthetist, University Hospitals Plymouth. Clinical oversight, physiological monitoring, and medical safety protocols. Lead author of the published twin study.
Technology & Data
Chris Parrott
Systems architect and mountaineer. Real-time biometric platform development, sensor integration and expedition technology. The tent twin.
Commercial
Graham Parrott
Mountaineer and study co-designer. Commercial strategy, field operations, and real-world validation of monitoring systems. The control twin.
Mobile
Craig Dunlop
NHS consultant. Leads the iPhone build – bringing the platform's live capture and dose display to the device athletes already carry.
04 – Research & Publications
Peer-reviewed.
Field-demonstrated.
Our twin case study is published in peer-reviewed mountain-medicine literature. The HSD methods paper is under revision following peer review.
05 – Get Involved
Interested in working with us?
The capture platform is live and in use. Named services are not yet open for general booking, and the relay and satellite path are in development. If you are preparing for a summit or a race, or exploring collaboration, tell us and we will be in touch as places open.
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