Metabolic & Lactate Testing

Stop Guessing. Start improving

Precision Metabolic & Lactate Testing for Endurance Athletes.

Stop Guessing. Book your Lactate Test

Same Threshold. Totally different engines

The Hidden Cost of Guessing

Think about the costs. Your carbon wheels, your GPS watch, your travel, your coaching. You invest in every possible advantage, but you’re ignoring the most critical component: your own unique physiology.

  • Junk Miles: Are you training in the right zones? Or are you just accumulating fatigue with no real adaptation? A flawed 20-minute FTP test can put your zones out by 10-15%, leading to months of wasted effort.

  • Bonking and Gut Failure: How many carbs do you really need per hour? Taking too many leads to stomach issues. Too few, and you bonk. Generic advice doesn't account for your specific metabolic engine.

  • Pacing Disaster: Starting too fast floods your muscles with lactate that your aerobic system has to clear, draining your energy before the race has even really begun.

Without data, you're just gambling with your goals. We replace that gamble with certainty.

Get Tested and Know how to improve

INSIDE YOUR METABOLIC PROFILE

We use INSCYD metabolic testing! trusted by Tour de France winners and Ironman champions. It goes well beyond LT1 and LT2.

Here’s what you will learn:

Forget percentages of a flawed FTP. We find your true thresholds using your actual blood chemistry. This gives you precise, non-negotiable heart rate and power zones for every single training session.

Precise Training Zones

VLamax is how quickly you produce energy and lactate. Think of it as a Greyhound vs. a Husky. A high VLamax is great for a sprinter (Greyhound), but it's a disaster for an endurance athlete—you burn through your fuel way too fast. We identify your engine type and give you the tools to optimize it for your event.

VLamax and VO2max

We pinpoint the exact intensity where your body uses the most fat for fuel. This is your true all-day endurance pace. Training here makes you incredibly efficient, so you can go longer and harder without burning all your matches.

Fatmax & Carbmax

Performance Projection

We use your metabolic data to predict your potential race times (Ironman, Marathon, Ultra events) and show you exactly where you can be in 3-6 months.

Choose Your Metobolic Test

Book your Test

£195 - The Baseline Assessment

The essential starting point. Get the core data you need to stop guessing.

  • Full single-sport test (Bike OR Run)

  • Metabolic report

  • Precise HR/Power zones based on your unique physiology

  • Your exact fueling numbers (grams of carbs per hour)

£245 - The Performance PLan

Data plus direction. The perfect package to fix your specific weaknesses.

Everything in the Baseline Audit, PLUS:

  • A bespoke 12-week corrective training plan built to fix your limiters

  • A detailed pacing and nutrition strategy consultation

£299 - The Test and Retest

The complete package for the dedicated athlete. Test, train, and validate your progress.

Everything in the Performance Plan, PLUS:

  • A Follow-Up Test (valid for 6 months) to measure your gains and update your zones

£399 - The Multisport Project

For triathletes who demand precision across disciplines.

  • Full Bike Test (on your bike) AND a Full Run Test (on our treadmill)

  • Tests are conducted on separate days for maximum accuracy

  • Includes a bespoke 12-week Triathlon training plan

£350pp - Group Testing

For clubs or groups of 3+ athletes. Book our facility and we do a ‘round-robin’ session (bike and run) and get the Multisport Project package at a group rate. We can also arrange to come to you and test at your venue. Please enquire using the form below.

Frequently Asked Questions

  • Absolutely not. Beginners and intermediate athletes often see the biggest and fastest improvements because they are moving from pure guesswork to precision data for the first time.

  • Yes. For the bike test, you will bring your own bike to be mounted on our Tacx Neo smart trainer. This ensures the data is 100% specific to you and your position. You can also choose to do the test on our Tacx Neo Smart Bike. We provide the treadmill for the run test. Or you can opt to do the testing on a running track if preferred but please contact us in advance.

  • The test is designed to push you to your physical limit to get accurate data. It involves short, intense efforts that will feel challenging. While it requires a maximal effort and will be uncomfortable, it is a safe and controlled process. The temporary discomfort is a small price for the valuable performance data you'll gain.

  • It's simple. We require you to arrive rested and properly fueled. You will receive a short, easy-to-follow pre-test protocol upon booking.

  • A single-sport test (Bike or Run) typically takes about 90 minutes from start to finish. This includes setup, the test itself, and a brief cool-down. For the Multisport Project, each test is done on a separate day to ensure accuracy, with each session lasting around 90 minutes.

  • A standard 20-minute FTP test is a performance estimate, not a physiological measurement. It can be influenced by pacing, fatigue, and motivation, often leading to inaccurate training zones. Our INSCYD test uses blood lactate measurements to see what's actually happening inside your body. We measure your unique metabolic profile to give you precise data, not just an estimate.

  • Yes. For athletes who can't travel to our clinic, we offer remote PPD (Power-Performance Decoder) testing. You’ll complete a series of efforts using your own equipment at home or your local gym. We provide clear protocols, and our experts will analyze your data and deliver a detailed report and consult, just like our in-person sessions.