RMR & Metabolic Testing Sydney
RMR metabolic testing in Alexandria, Sydney
Resting metabolic rate (RMR) testing measures, rather than estimates, the calories your body burns at rest. Know your real numbers before you plan a cut, a bulk, or a season of training.
What an RMR test measures
An RMR test uses indirect calorimetry: you breathe into a mouthpiece while resting quietly, and the device measures the oxygen you use and the carbon dioxide you produce. From that, it calculates the calories your body burns at rest, before any training, digestion or daily movement is added on top.
Most nutrition plans start from a formula that estimates this number from your age, height, weight and sex. An RMR test replaces that estimate with a direct measurement of your own metabolism, which is often meaningfully different from the formula, especially for athletes.
Who it is for
- Athletes planning a structured weight cut or a bulk
- Anyone whose weight isn’t responding to their current nutrition plan
- Clients on GLP-1 medication who want to protect lean mass while managing intake
- Athletes returning to training after injury or a break
Price and what’s included
| Test | Duration | Price | Includes |
|---|---|---|---|
| RMR metabolic test | 20 minutes | $149 | The report, plus a detailed explanation of your numbers and how to use them, matched to your training and activity |
Coming back for a repeat test later on. Same booking, same price.
How to prepare
- Fasting window before the test: ideally overnight
- Caffeine: no coffee on the morning of your appointment
- Training the day before: you can train the night before
What happens on the day
Arrival and rest
You arrive and rest quietly before the test starts, so your reading reflects a true resting state.
The test
You breathe normally into a mouthpiece for around 20 minutes while the device measures your gas exchange.
Results walk-through
Your Accredited Sports Dietitian explains your number in the same appointment and what it means for your plan.
What the number means and how we use it
Your RMR sets the floor: the energy your body needs before training, movement or digestion are added. From there, your dietitian builds in your training load and sets intake targets from a measurement rather than a guess. If body composition also matters to your goal, we’ll often review your RMR alongside a DEXA scan.
Take it further
RMR tells you what your body burns at rest. Pair it with a DEXA scan and you get the other half of the picture too: what your body is made of.
Pro Assessment
$225
- DEXA body composition scan
- RMR metabolic test
- Both results explained together in the same visit
Performance Plan
$500
- 2 × DEXA scans (baseline and follow-up)
- RMR metabolic test
- 60-minute dietitian consult, plan built around your numbers