Medical-grade testing · Winchester, UK
Optimise human
performance.
Stop guessing what your body needs. Clinical metabolic tests reveal exactly how you burn fuel, recover and perform, so every decision is backed by your own data.
What you'll discover
- RMRTrue calorie burnResting Metabolic Rate
- VO₂Cardio capacityAerobic peak & zones
- FAT%Fat vs carb burnMetabolic flexibility
- HRZYour heart rate zonesPersonalised, not estimated
- →An actionable reportExercise, nutrition & lifestyle
Our tests
Two tests. Total clarity.
Take a single test, or the September Package: both tests in one session and an 8-week training programme built from your results.

Resting Metabolic Rate
Understand exactly how many calories your body burns at rest, and what that means for your weight, energy and long-term health.
- True caloric needs for any goal
- Metabolic dysfunction risk score
- Fat burning efficiency at rest
- Heart rate variability (HRV)
- Lung utilisation at rest

September Package
Both tests in one session, then an 8-week training programme written from what they measure.
- VO₂ Max test
- RMR test
- 8-week personalised training programme

VO₂ Max Test
Know your exact aerobic capacity and personal heart rate zones. Train smarter, with every session in the right zone for your goal.
- VO₂ Max & performance scores
- Personalised heart rate zones
- Respiratory & lung capacity
- High intensity performance ceiling
- Recovery capacity rating
What we measure
Every score you can find.
Filter by test to see exactly what data you'll walk away with.
Online coaching
Can't get to Winchester?
Train with us anyway.
Online training and nutrition coaching for strength, CrossFit and endurance athletes, wherever you are. Your programme is written around your goals and your schedule, delivered in our app, and adjusted every week.
Explore online coaching- StrengthPeriodised blocks around your lifts
- CrossFitStrength, engine and skill in balance
- EnduranceZone training from your own data
- NutritionCalories and fuelling that match it

A coach with you,
every step of the way.
I write your plan, read your week and adjust it myself. Message me any time in between.
Start your enquiryReal results
What people are saying.
“I'd been training for an Ironman on guesswork. The VO₂ test showed my zones were completely off. I was going too hard on easy days and not hard enough on intervals. Fixed that and knocked 14 minutes off my half-iron time.”
“I was eating 1,400 calories thinking that's what I needed to lose weight. The RMR test showed my metabolism was actually burning way more than that. I'm eating more now and finally dropping body fat. Wish I'd done this years ago.”
“Ran my first sub-40 10K after adjusting my training zones from the test. The report was dead clear, no confusing graphs, just 'here's what to do.' James was brilliant at explaining everything too.”
“Not a competitive athlete at all, I just wanted to understand why I was always tired by 2pm. Turns out I was barely burning any fat at rest. Changed my nutrition off the back of the results and my energy is so much better.”
What happens next
A plan, not just data.
Every score comes with specific recommendations across exercise, nutrition and lifestyle, so you know exactly what to do next.
Exercise
Strength work builds muscle mass, increasing oxygen uptake and metabolic rate, which directly improves your test scores over time.
Zone 4–5 work improves heart function and lung capacity, pushing your VO₂ Max higher with every block.
Low-intensity aerobic work trains your cells to absorb and utilise oxygen more efficiently across the whole body.
Nutrition
Foods rich in nitrates dilate blood vessels, boosting oxygen delivery to working muscles during exercise.
Adequate heme-iron supports healthy haemoglobin and red blood cell production, essential for oxygen transport.
Knowing your RMR means your nutrition plan is built on real data, not generic calculators that miss by 300+ calories.
Lifestyle
Completing high-intensity work in the afternoon aligns with your natural cortisol curve for better output and recovery.
7–8 hours of quality sleep directly improves physical recovery and raises your VO₂ Max ceiling over time.
Reducing body fat by just 5% can meaningfully improve your VO₂ Max, and your test tells you exactly how to get there.
Ready to stop guessing?
Book your metabolic test and walk away with a clear, personalised plan. Or take the September Package for both tests and an 8-week training programme.