Metabolic Body composition
$229
Two of the most clinically meaningful measures of metabolic health, combined in a single session.
What is it?
Your resting metabolic rate tells you how your body uses energy at rest — the true calorie burn, the fuel mix, the metabolic flexibility. Your body composition tells you what your body is actually made of — the fat, the lean mass, and where it sits. Together, they give you a complete picture that neither measurement can provide alone.
The Metabolic Body Composition package combines a direct RMR assessment using the Breezing Pro indirect calorimeter with a full 8-site ISAK skinfold body composition analysis — the internationally standardised, gold standard method used in elite sport and clinical practice worldwide.
If you want to understand your metabolism and your body in one visit, this is it.
-
Anyone working on body composition goals who wants a reliable, data-backed starting point and a measurement system that will show genuine change over time. Athletes monitoring composition through training cycles and competition seasons. Those whose GP or dietitian has recommended metabolic or body composition assessment. People who have struggled to get results from generic nutrition plans and want to understand why.
The Metabolic Body Composition package also pairs naturally with our VO2max testing — adding aerobic capacity to the metabolic and compositional picture gives a comprehensive health and performance baseline across all three domains.
-
Allow 60–75 minutes. The RMR assessment runs approximately 35–40 minutes including set-up and results review. The 8-site ISAK assessment runs approximately 25–30 minutes. Both are reviewed together in a combined debrief at the end of the session.
-
Both tests have preparation requirements — please follow these carefully for accurate results:
Fast for a minimum of 4–5 hours before the session. Overnight fasting preferred — morning appointments work best.
No exercise for at least 12 hours beforehand
No caffeine on the day
No exercise, swimming, sauna, or hot shower for at least 2 hours before the ISAK component — these temporarily increase blood flow to the skin and can affect skinfold measurements
Arrive having rested quietly for at least 10–15 minutes before the RMR begins
Wear minimal, close-fitting clothing (sports bra and shorts, or equivalent) for ease of access to skinfold measurement sites
Maintain normal hydration — don't over-drink or arrive dehydrated
Water is fine throughout
For tracking purposes, retest under the same conditions each time — same time of day, same fasting duration, same clothing.
all prices inclusive of GST.
What's included
Resting Metabolic Rate (Breezing Pro)
A direct measure of your resting calorie burn using clinical indirect calorimetry — measuring both oxygen consumption and CO2 production simultaneously. Not an estimate from a formula. Not a prediction from your age and weight. A real measurement of what your body is actually doing at rest.
Your results include your true daily calorie requirement, your respiratory exchange ratio (RER) showing the balance of fat versus carbohydrate your body burns at rest, and a practical interpretation of what your metabolism tells us about your current metabolic health and flexibility.
8-Site ISAK Body Composition
A comprehensive skinfold assessment at eight standardised anatomical sites, performed by a Level 1 ISAK-certified practitioner using calibrated calipers. Each site is measured in a consistent, repeatable sequence — the same international protocol used by professional sport teams and high performance programmes.
The 8-site protocol covers the tricep, bicep, subscapular, iliac crest, supraspinale, abdominal, front thigh, and medial calf — giving a detailed picture of both total subcutaneous fat and regional fat distribution. Results are reported as a sum of skinfolds in millimetres alongside body fat percentage and lean mass estimates, benchmarked against sport-specific and population normative ranges.
Results debrief
Both sets of results are reviewed together in a single debrief — connecting the metabolic picture (how your body burns energy) with the compositional picture (what your body is made of) to produce practical, integrated recommendations for nutrition, training, and lifestyle.
Why these two tests work together
RMR and ISAK answer different but complementary questions.
RMR answers: how many calories does my body need, and what fuel is it preferring right now? A high resting RER suggests carbohydrate dependence and potential metabolic inflexibility. A low resting RER suggests efficient fat oxidation at baseline. This matters for how you should eat and train.
ISAK answers: what is my body actually made of, and how is it distributed? Sum of skinfolds tracked over time is the most reliable way to monitor real body composition change — more sensitive to genuine fat loss or muscle gain than weight alone, and more repeatable than other field methods.
Together they give you both sides of the equation — input and structure — in a way that makes each result more useful than it would be in isolation.