51° 8' 26.861" N / 0° 9' 57.381" W
Designed for all athletes, SIGR takes the guesswork out of performance through advanced testing.
Performance Lab provides advanced physiological and fitness testing that gives you the tools and data to elevate your physical performance, health and longevity. Whether you’re focused on sports and performance or simply living longer, our biometric testing and expert analysis deliver clear, actionable insights to drive measurable improvements.
Pinpoints your LT1/LT2 thresholds through incremental blood lactate profiling — precisely mapping where aerobic efficiency ends and anaerobic compensation begins. Train in the zones that actually move the needle, eliminate junk mileage, and periodise load with physiological precision. The difference between racing on feel and racing on data.
Quantifies your cardiorespiratory ceiling and ventilatory thresholds via graded expired gas analysis — the single most predictive metric of endurance performance. Know exactly where your limiters sit, whether that's oxygen delivery, utilisation, or both. Train against a measurable benchmark, track adaptation over time, and stop leaving performance on the table.
Profiles your individual sodium excretion rate and total fluid turnover under exercise conditions — because generic hydration strategies cost you performance. Eliminate late-race cramping, cognitive fade, and thermoregulatory breakdown with a protocol built for your physiology. The athletes who get this right hold pace when others fall apart.
Establishes your true basal energy expenditure through indirect calorimetry — the metabolic foundation every nutrition plan should be built on. Dial in caloric intake, substrate ratios, and fuelling periodisation with clinical accuracy. Stop guessing whether you're under-recovering or over-fuelling — and unlock the body composition and energy availability that sustains consistent performance.
Lactate profiling paired with sweat composition analysis — mapping your metabolic thresholds and individual electrolyte demands to precision-tune pacing and fuelling from measured physiology.
What’s included:
Lactate profiling integrated with VO₂ max analysis — quantifying your anaerobic inflection points and cardiorespiratory ceiling to deliver training zones built from data, not guesswork.
What’s included:
The full physiological audit. Lactate thresholds, VO₂ max ceiling, and sweat composition — every variable governing pacing, fuelling, and fatigue onset measured in a single session.
What’s included:
The complete physiological blueprint. Lactate thresholds, VO₂ max, sweat composition, and carbohydrate oxidation rates — mapped in one session, translated into a bespoke fuelling, hydration, and race strategy built entirely from your data. For athletes done with guesswork.
What’s included:
From a lactate profile assessment, you will receive accurate and personalised training zones based on how your body responds to exercise. These zones are determined using real physiological data, rather than general estimates or formulas, making them much more precise. This allows you to train at the correct intensities for different types of sessions, whether that is building endurance, improving fitness, or working at higher intensities. As a result, your training becomes more effective, helping you get the most out of each session while reducing the risk of training too hard or too easy.
From a VO₂ max test, you can also determine how your body uses carbohydrates and fats for energy at different exercise intensities. This information shows how efficiently your body burns fat and when it begins to rely more heavily on carbohydrates as intensity increases. By understanding this, you can better tailor your training and nutrition strategies to support your goals, whether that is improving endurance, enhancing performance, or managing energy levels during longer sessions. Having this insight allows you to train and fuel more effectively based on how your body actually produces energy.
Sweat sensor testing provides insight into your individual sweat rate and electrolyte loss during exercise. This helps identify how much fluid and key electrolytes, such as sodium, you lose when training. With this information, you can develop a personalised hydration strategy that supports performance and recovery, particularly during longer or more intense sessions. Understanding your sweat profile helps ensure you replace the right amount of fluids and electrolytes, reducing the risk of dehydration and helping you maintain performance.
The SIGR Performance Lab is located at STYRKR HQ, Unit 1, Gatwick International Distribution Centre — just 1.4 miles from Gatwick Airport railway station. Direct trains run from London Victoria (30 min), London Bridge (30 min), and Brighton (25 min). From the station, the 20 bus towards Crawley stops within a 5-minute walk of the lab, or a taxi takes under 3 minutes. Get directions
A 3-minute drive from Gatwick Airport, directly off the A23 London Road. Follow signs for Lowfield Heath and the Gatwick International Distribution Centre — the lab is at Unit 1, STYRKR HQ. Free parking is available on site. Sat nav postcode: RH11 0PA. Get directions
University of Bath. Specialist focus on endurance athlete fuelling, hydration, and performance strategy. Combines scientific rigour with practical application.
Worked with leading sports nutrition companies advising athletes on fuelling and hydration for training and competition. Supported major endurance events including IRONMAN races.
First-hand experience of endurance demands. Translates scientific insights into practical, easy-to-apply advice athletes can use on race day.
Leading all physiological testing at the SIGR Performance Lab — lactate profiling, VO₂ max, sweat composition, and resting metabolic rate assessments.
Not at all. Our testing is used by everyone from first-time marathon runners to professional triathletes. The data is valuable at every level — whether you are chasing a PB, returning from injury, or simply want to train smarter. The protocols are identical; the insights are tailored to wherever you are in your journey.
Cancellations or reschedules made more than 48 hours before your session will receive a full refund or free rebooking. Cancellations within 48 hours are non-refundable, as lab time and equipment are reserved exclusively for your appointment.
Full payment is required at the time of booking to secure your slot. We accept all major credit and debit cards. If you have a discount or promotional code, enter it at checkout. For corporate or team bookings of 3 or more athletes, contact us directly for group pricing.
Every package includes a detailed results report with personalised training zones (heart rate, power, and/or pace), delivered within 48 hours. Depending on your package, this may also include fuelling targets, hydration protocols, and a bespoke race-day strategy — all built from your individual data.
Book directly through the package buttons on this page. Select your package, choose an available date and time, and complete payment to confirm your slot. You will receive an email confirmation with full pre-test instructions within 24 hours of booking.
Arrive hydrated and fuelled — eat a light meal 2-3 hours before your session and avoid heavy training in the 24 hours prior. Bring your running shoes (we provide the treadmill), cycling shoes if you prefer bike-based testing, and comfortable training kit. Full pre-test guidance is sent with your booking confirmation.
Session length depends on the package. Endurance and Performance packages typically run 60-90 minutes. Performance+ sessions last approximately 2 hours. The Advanced Athlete Profile+ is our most comprehensive assessment at around 2.5-3 hours, covering all four testing protocols in a single visit.
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