Performance Swim Testing - Aberdeen
Is underfueling stopping you from swimming your best?
Most swimmers eat far less than their body needs. Our RMR test reveals your exact calorie requirements - so you can fuel properly, recover faster, and start making the progress your training deserves.
The Problem
Why Swimmers struggle - even when they train hard
Swimming is one of the most energy-demanding sports. Cold water suppresses appetite, sweat is invisible, and hunger cues are blunted after a hard session. The result? Most swimmers — from club level to competitive — are in a chronic calorie deficit without knowing it.
The consequences go beyond tiredness. Underfueling disrupts hormones, stalls adaptation, increases injury risk, and can lead to RED-S (Relative Energy Deficiency in Sport) — a serious condition that is far more common in swimming than most coaches and parents realise.
Performance plateau
Training hard but not improving? Your body cannot adapt to a training stimulus it does not have the fuel to recover from.
Scales will not shift
Eating less and exercising more but weight stays put? Chronic under eating causes metabolic adaptation - often the solution is to eat more, not less.
RED-S risk
Relative Energy Deficiency in Sport affects bone health, hormones, immunity and performance. It starts with not knowing your real calorie needs.
Poor recovery
Persistent fatigue, disrupted sleep, and slow recovery between sessions are common signs your body is not getting the fuel it needs to rebuild.
What RMR Testing reveals
Real numbers. Not estimates.
An RMR test measures the exact calories your body burns at rest using indirect calorimetry — the gold standard method. Combined with your training volume, it gives us a precise picture of what you actually need to eat every day. Not a formula. Not an app calculation. Your actual metabolism.
01
Your true resting calorie burn
The calories your body needs daily just to function - before any training is added on top
02
Total daily energy needs
Your RMR combined with your training load gives us the minimum you need to eat to avoid a deficit
03
Metabolic adaption signals
Whether your metabolism has downregulated in response to chronic underfueling - and by how much
04
Training fuel strategy
How to distribute your nutrition before, during, and after sessions for maximum adaption and recovery
Choose the right option for you
Start with just getting the data, or combine with swim propulsion analysis so the insights directly shape how you train and fuel
RMR TEST
£120
standalone
The complete test and report. Everything you need to understand your metabolic baseline and daily fuel requirements.
RMR test using indirect calorimetry
Full written report
Total daily energy calculation
Fuelling recommendations
30-min results debrief
Swim Analysis + RMR
£215
diagnostic session
RMR testing combined with Swim Propulsion Analysis — two complete diagnostics in a single visit, so you understand exactly how your body fuels itself and how efficiently you move through the water
RMR test + full written report
Swim Propulsion Analysis in the endless pool
Propulsion report with stroke efficiency findings
Clear next step recommendations
Squad Testing day
contact us to book
bespoke pricing per squad
Bring RMR testing to your swim club. We test your squad back to back in a single session, provide individual reports for each swimmer, and brief your coach on the findings
Back-to-back testing for all swimmers
Individual RMR test per swimmer
Individual written report per swimmer
RED-S risk flagging per athlete
Coach briefing on squad-wide findings
Flexible scheduling around training
What we typically find when we test swimmers
The gap between what swimmers think they need to eat and what their body actually requires is consistently larger than expected. Here are the patterns we see — and why most people are surprised by their results.
Data represents composite patterns from metabolic testing with endurance athletes. Individual results vary based on body composition, training load, and metabolic history.
common questions
what you are probably wondering
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No. RMR testing is useful for anyone who swims regularly and wants to understand their energy needs — whether you are a club swimmer, a triathlete, a masters swimmer, or someone returning to the sport. If you are training and not seeing the results you expect, the data will explain why.
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We are not dietitians and we do not provide clinical nutrition plans. What we give you is the data — your precise calorie requirements, how to distribute fuel around your training sessions, and what your results mean for your performance and recovery. If you need detailed clinical nutrition guidance, we can refer you to a registered sports dietitian.
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Online calculators use estimated formulas based on height, weight, and age. An RMR test measures your actual metabolism by analysing your exhaled gases — the gold standard method. The difference between a formula estimate and your real RMR can be 300–800 calories per day, which is precisely the gap that explains why so many swimmers are not seeing the results they should.
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Yes — and this is where RMR testing is often most revealing. If you have been eating less and training more but the scales will not move, chronic underfueling may have downregulated your metabolism. The test shows whether that has happened and gives you a real, accurate number to build from — which is usually higher than you would expect.
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Get in touch directly and we will arrange a block booking that fits around your training schedule. We test five swimmers minimum per session, provide individual reports for each swimmer, and brief your coaching staff on the squad-wide findings. Email info@total-endurance.co.uk or call 01224 900500.
Find out what your body actually needs
Book your RMR test and get the data that changes how you train, eat, and recovery - in under an hour.