Why every estimate you've used is wrong
You've been fed a guess dressed up as a number.
Every calorie target, every fat-burning zone, every "recovery score" you've ever trusted was estimated from a population average — not measured on you. Here's why that fails.
The formula problem
Equations overestimate you
The predictive formulas your apps use — Harris-Benedict and its cousins — overestimate resting metabolism by up to 15% in healthy people. And the error grows the more body fat you carry. A guess built on a crowd, not on your biology.
The MET myth
A standard that doesn't fit you
The "3.5 ml of oxygen per kilo per minute" standard overestimates resting metabolic rate by around 10% for men and nearly 15% for women. Useful for labelling how hard an activity is — useless for building your nutrition.
The gold standard
We measure, we don't estimate
Indirect calorimetry quantifies your energy expenditure by measuring the oxygen you consume and the carbon dioxide you produce — breath by breath, through a mask. The scientific gold standard for metabolic rate. Not calculated. Measured.
The difference
A number that sounds right, versus one that is right.
Two tests, one complete picture
Your metabolism has two states. We measure both.
At rest, and under load. One builds your nutrition. The other builds your training. Together they are the most complete read on your physiology available anywhere in Oslo.
ASSESSMENT ONE
The Metabolic Fingerprint
The resting test. You lie down and breathe quietly for around ten minutes while we measure your metabolism at complete rest — the foundation every diet should be built on.
ASSESSMENT TWO
The Performance Map
The active test. You move through gradually rising intensity while we track oxygen, carbon dioxide, heart, and lungs in real time — the blueprint for how you should train.
What your resting test reveals
The true engine, measured at rest.
Your true burn
Resting Metabolic Rate
The exact number of calories your body needs at rest — the single largest part of everything you burn in a day. Every nutrition plan should start here, and almost none do.
Metabolic speed
Fast or slow metabolism
Whether you burn more or fewer calories than predicted for your age, sex, height, and weight. Chronic dieting and excessive cardio slow it down — we show you exactly where you stand and how to bring it back.
Fuel mix
Fat vs. carbohydrate
The precise ratio of fat to carbohydrate your body burns for energy. A high reliance on fat is one of the most reliable indicators of cellular health and is strongly linked to a low likelihood of weight gain and regain.
Calorie architecture
Your day, in three numbers
Your report breaks your daily burn into three measured parts: your resting rate, the burn from daily activity, and the burn from a 45-minute workout — with separate targets for training days and rest days, and for maintenance or fat loss.
What your performance test reveals
A ten-point clinical read on your engine.
When you move, your body tells the truth. Our active analysis produces a full ten-factor assessment of how your heart, lungs, and metabolism perform under load — the kind of profile normally reserved for national-team athletes.
Aerobic Fitness
Breathing & Cognition
Mechanical Efficiency
Cardiovascular Fitness
Breathing & Stability
Recovery Capacity
Respiratory Capacity
Metabolic Efficiency
Respiratory Capability
Fat-Burning Efficiency
The headline number
True VO2 Max
The maximum oxygen your body can use — a primary predictor of both lifespan and athletic ceiling. Measured, not estimated from a watch.
The fat zone
Fat-burning efficiency
The exact intensity at which you burn the most fat — your real Fat Max — so cardio stops being guesswork.
Under pressure
High-intensity performance
How well your heart (oxygen delivered per beat) and lungs (oxygen extracted per breath) keep supplying your muscles when it's hardest — and where the bottleneck really is.
Output vs. cost
Mechanical efficiency & recovery
How much work you produce per calorie burned, and how quickly your system returns to baseline afterward — the difference between training hard and training smart.
Your true training zones
The most accurate heart-rate zones you can get.
Five heart-rate zones built from your measured metabolic thresholds — not an age formula, and not your watch's estimate. Your Garmin, WHOOP, or Apple Watch zones are approximations. These are measured. Being off by just five beats per minute can shift you from burning fat to burning sugar — and quietly waste months of training.
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Five measured zones, from Fat Max to peak
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Built from your real metabolic thresholds
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Calibrated to the modality you train on — bike or treadmill
What no scale or watch can see
How you breathe changes everything.
We combine your resting test, your active test, and a spirometry assessment into a complete respiratory profile — a layer of insight almost nobody has ever had measured.
Respiratory Capacity
The volume your lungs can move.
Breathing & Cognition
How your breathing pattern affects focus and your nervous system.
Expiration Power
How forcefully you can exhale.
Breathing Coordination
How efficiently your breath is timed to effort.
Breathing & Posture
How your mechanics affect your breathing under load.
How you breathe drives how you recover, how you focus, and how much stress you carry. Most people have never had it measured once.
What you walk away with
One complete biological picture.
A full clinical report — resting and performance — delivered to your inbox
Your calorie architecture, split for training days and rest days
Your five measured heart-rate training zones
A weekly workout breakdown — resistance, interval, and cardio — matched to your goal and your results
A 60-minute consultation with Coach Ohana to turn all of it into a concrete plan
Data you can actually use
Built for four kinds of serious.
Weight Loss
Stop starving on a guessed number. Eat to your real metabolism.
Longevity
VO2 Max is the single strongest predictor of lifespan. Measure it to manage it.
Endurance Athlete
Train with measured zones, not estimated ones. Eliminate the guesswork.
The Executive
See how your breathing pattern is taxing your nervous system — and fix it.
How it works
Precise, guided, and read by an expert.
Before
Simple preparation
Come rested and appropriately fasted, without a hard training session beforehand, so your numbers are clean. Full prep instructions are sent when you book.
After
Debrief & report
You see preliminary numbers on the day, then receive your full clinical report by email — followed by your review consultation to turn data into a plan.
The resting test
Lie down and breathe
Around ten minutes of quiet breathing through the mask while we measure your metabolism at true rest.
The active test
Graduated intensity
Short, rising one-minute stages. You push as hard as you safely can — and you never have to finish a stage once you've started it.
Learn more before you book
Understand your numbers.
PDF Guide
What Metabolic Analysis Measures
A plain-language guide to RMR, VO2 Max, and metabolic flexibility.
PDF Guide
Reading Your Results
How to interpret your zones, your fuel usage, and your report.
FAQ
Common questions.
Metabolic analysis at Ohana Performance Institute is a performance and wellness assessment, not medical treatment or diagnosis. The information provided is not a substitute for advice from a licensed healthcare provider. Consult your physician before beginning any new exercise or nutrition program.