Resting Energy Expenditure (REE) Testing in Tbilisi — Gymnasia SPRI
Resting Energy Expenditure (REE) Testing at Gymnasia SPRI
Your metabolism is as unique as your fingerprint. Generic calorie calculators use formulas that can be off by 20-30% from your actual metabolic rate. REE testing eliminates the guesswork by measuring exactly how many calories your body burns at rest — the foundation of every effective nutrition and training plan.
At Gymnasia SPRI, REE is measured using indirect calorimetry, a clinical method that analyzes the gases you exhale to determine your precise metabolic rate. The test is non-invasive, painless, and takes under 20 minutes.
What is REE?
Resting Energy Expenditure is the number of calories your body requires simply to maintain basic functions — breathing, circulation, cell repair, brain activity — while completely at rest. REE typically accounts for 60-75% of your total daily energy expenditure, making it the single most important number in nutrition planning.
Understanding your REE allows you to:
- Calculate accurate daily calorie needs — No more estimating. Know your exact baseline.
- Determine whether your metabolism is fast, slow, or normal — Many people assume incorrectly. Measurement removes assumption.
- Identify metabolic adaptations from dieting — Chronic calorie restriction can lower your metabolic rate. REE testing reveals if this has happened.
- Build a nutrition plan that actually works — Whether your goal is fat loss, muscle gain, or performance optimization, accurate caloric targets are the starting point.
Who Should Get REE Testing?
- Weight Management — If you are trying to lose fat or gain lean mass, knowing your actual metabolic rate prevents both undereating (which slows metabolism) and overeating (which stalls progress)
- Athletes Optimizing Nutrition — Fuel your training correctly. Avoid relative energy deficiency in sport (RED-S) by ensuring caloric intake matches expenditure
- People with Metabolic Concerns — Thyroid conditions, PCOS, insulin resistance, or unexplained weight changes warrant objective metabolic measurement
- Post-Diet Recovery — Quantify metabolic adaptation after prolonged calorie restriction and plan a strategic recovery approach
- Anyone Seeking Data-Driven Nutrition — Replace online calculators with clinical measurement for truly personalized dietary planning
What to Expect During Your Session
- Preparation — Fast for at least 4 hours before the test. Avoid caffeine and vigorous exercise for 12 hours prior. Arrive well-rested.
- Relaxation Period (5 min) — You lie down in a comfortable, dimly lit room and relax completely
- Measurement (10-15 min) — A specialized mask or canopy covers your nose and mouth, collecting and analyzing every breath. The device measures oxygen consumption and carbon dioxide production in real time
- Instant Results — Your metabolic rate is calculated immediately from the respiratory data
- Consultation — Our SPRI specialist reviews your results, explains what they mean, and provides personalized caloric and macronutrient recommendations
Total visit: approximately 30-40 minutes.
How We Use Your Results
Your REE data becomes the foundation of a precision nutrition strategy:
- Set accurate daily caloric targets for your specific goal (fat loss, maintenance, or muscle gain)
- Calculate macronutrient ratios (protein, carbohydrates, fats) based on your metabolic profile and training demands
- Identify whether you are in a metabolic deficit, surplus, or balance
- Adjust nutrition periodization to match training phases (high volume, competition, recovery)
- Track metabolic changes over time with follow-up testing every 3-6 months
Pricing
| Service | Price |
|---|---|
| REE Assessment | 200 GEL |
| REE Assessment (Gymnasia members) | 180 GEL |
Booking: Maka: +995 579 270 272
Frequently Asked Questions
How long does the REE test take?
The measurement itself takes 10-15 minutes. Including setup and consultation, plan for approximately 30-40 minutes total.
Do I need to prepare anything beforehand?
Yes. Fast for at least 4 hours before the test. Avoid caffeine and vigorous exercise for 12 hours prior. Arrive well-rested — poor sleep can affect metabolic rate readings.
Is the test uncomfortable?
Not at all. You simply lie down and breathe normally through a mask or under a canopy. The test is completely non-invasive and painless.
How accurate is REE testing compared to online calculators?
Significantly more accurate. Online calculators use population-average formulas that can be off by 200-500+ calories per day. Indirect calorimetry measures your individual metabolic rate directly from respiratory gas exchange.
How often should I repeat the test?
We recommend retesting every 3-6 months to track metabolic changes, or after significant changes in body composition, diet, or training volume.
Can REE testing help with weight loss plateaus?
Yes. One of the most common reasons for weight loss plateaus is metabolic adaptation — your body burns fewer calories than formulas predict. REE testing reveals your actual metabolic rate so you can adjust your nutrition plan accordingly.
Can I get REE testing if I am not a Gymnasia member?
Yes. REE testing is open to everyone.
Do I need a referral?
No referral is needed. Book directly by contacting Maka at +995 579 270 272.
Our Other SPRI Services
- VO2max Testing — Measure your peak cardio fitness
- ECG Screening — Heart health screening
- Functional Performance Testing — Movement and fitness assessment
- Manual Therapy — Hands-on recovery
- Osteopathic Therapy — Structural alignment
- Kids Screening — Youth athlete assessment
- Functional Training — Corrective exercise
Working hours: Monday-Friday: 10:00-18:00 | Saturday: 12:00-16:00 Address: 14a Elguja Amashukeli St, Tbilisi 0162
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