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Tempo Performance — Marylebone, London W1W

PERFORMANCE
IS ENGINEERED.

Anatomical. Psychological. Genetic.
Precision-built coaching for elite transformation.

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0+Elite Clients
0Years Mastery
5Performance Pillars
W1WMarylebone, London
0%Goal Achievement
Julian Ernst, Founder of Tempo Performance
Julian Ernst — Founder & Lead Coach
The Architect

THE SCIENCE OF
TRANSFORMATION

"If you can't explain it simply, you don't understand it well enough."

— Einstein / Julian's Founding Principle

Julian Ernst is not a personal trainer. He is a performance architect — a specialist in the science of elite human transformation. As founder of Tempo Performance in Marylebone, London, Julian has spent over a decade building programmes at the intersection of anatomy, psychology, biochemistry, and genetics.

Every programme built at Tempo is constructed from first principles — not templates, not guesswork. Julian works with elite athletes, London executives, models, and competition bodybuilders who demand results that are measurable, repeatable, and built to last.

Elite Athletes Executives Models Competition Prep Anatomical Profiling Neuroscience
Work with Julian
The Framework

EVERY HUMAN
PERFORMS DIFFERENTLY.

Our five-pillar methodology eliminates guesswork. Every protocol is individually engineered through anatomical, psychological, and biochemical analysis.

01
Anatomical Profiling
Biomechanical analysis of your unique skeletal structure, muscle insertions, and movement patterns — revealing precisely how your body moves and responds.
02
Psychological Analysis
Mindset architecture and behavioural profiling. Understanding your psychological drivers, stress responses, and decision-making patterns under pressure.
03
Genetic Profiling
Your biological blueprint decoded. Understanding genetic predispositions in muscle composition, recovery rate, and metabolic efficiency.
04
Neurotransmitter Testing
Mapping your neurochemical performance baseline — dopamine, serotonin, cortisol, norepinephrine — to optimise intensity, recovery, and nutrition.
05
Precision Programming
Individualised protocols built on data, not assumptions. Dynamic programming that adapts in real-time to your physiological response.
Services

PRECISION-BUILT
FOR YOU.

Every service at Tempo Performance is designed around your individual biology, psychology, and goals. No templates. No guesswork. Only precision.

01
Personal Training
1:1 studio sessions at our Marylebone facility on Great Portland Street. Full anatomical assessment, precision programming, and real-time coaching from Julian Ernst. The definitive in-person performance experience.
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02
Online Coaching
Remote precision programming for global clients who demand the same rigour as in-person training. Full assessment protocol, weekly check-ins, and dynamic programming delivered worldwide.
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03
Corporate Performance
Executive performance optimisation programmes for high-output professionals. Physical resilience, cognitive performance, stress management, and sustained energy — engineered for the demands of leadership.
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04
Competition Prep
Contest preparation for physique and strength athletes competing at the highest level. Peak week protocols, genetic-informed conditioning strategies, and psychological preparation for elite competition.
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05
Neurotransmitter Testing
Advanced neurochemical profiling to identify your baseline neurotransmitter levels. The only performance studio in Marylebone offering this level of biochemical insight as a foundational diagnostic.
Learn More →
06
Client Journey
A complete end-to-end transformation system — from initial consultation through full assessment, profiling, programming, and ongoing tracking. Not a service. A precision engineering process for your human potential.
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Outcomes

RESULTS WITHOUT
GUESSWORK.

Evidence-based transformation across elite sport, executive performance, aesthetics, and competition.

Athletic performance coaching
Elite Athletics
Athletic Performance
Peak output improvement — sprint, power, endurance
Anatomical assessment and body composition
Executive Programme
Body Composition
Precision physique engineering for professionals
Competition preparation
Competition Prep
Stage Ready
Contest conditioning — UKBFF, NPC, BPA
Mobility analysis and aesthetic conditioning
Model Prep
Aesthetic Precision
Editorial and runway conditioning protocols
0+ Transformations Delivered
0% Goal Achievement Rate
0 Years of Mastery
0% Template-Based Programming
Client Voices

WHAT ELITE CLIENTS SAY.

“

Julian doesn't just train you — he deconstructs you. Within two weeks I understood my body in ways I never had in fifteen years of training. The results followed naturally. This is a completely different category of coaching.

Marcus T.
Marcus T. Managing Director, Private Equity — London
“

I've worked with coaches across three continents. Julian's approach is unlike anything I've experienced. The neurotransmitter testing alone changed how I understood recovery. I placed first in my category at the BPA nationals. The methodology is real.

Sophia R.
Sophia R. IFBB Bikini Athlete — Placed 1st, BPA Nationals
“

As someone who runs on four hours' sleep and 60-hour weeks, I needed a programme that worked with my biology — not against it. Tempo Performance understood that from day one. My energy, focus, and body composition have all transformed. Worth every penny.

David K.
David K. CEO, FinTech Firm — City of London
Neurochemistry

UNDERSTAND
HOW YOU FUNCTION.

Advanced neurochemical profiling to identify your baseline neurotransmitter levels. Understanding your neurochemistry is the foundation of truly optimised performance — the variable most coaches never measure.

Dopamine Motivation, drive, reward — your core performance fuel
Serotonin Mood regulation, recovery quality, sleep architecture
Cortisol Stress response, adaptation, body composition impact
Norepinephrine Focus, arousal, training intensity optimisation
Request Neuro Assessment
Neural
Map
Intelligence

PERFORMANCE
INTELLIGENCE.

Insights from the intersection of neuroscience, physiology, and elite human performance.

Neuroscience of optimal training
Neuroscience
The Neuroscience of Optimal Training
Understanding how dopaminergic pathways influence training performance, motivation, and recovery — and why neurochemistry is the missing variable in most programmes.
7 min read Read →
Genetic profiling in performance
Genetics
Why Genetic Profiling Changes Everything
The era of template programming is over. How understanding your ACE, ACTN3, and PPARGC1A gene variants transforms how you train, recover, and fuel for elite performance.
9 min read Read →
Executive performance
Executive Performance
Executive Performance: The Body-Mind Interface
Why London's most successful leaders are turning to precision human performance programming to sustain cognitive output, resilience, and physical capital under maximum pressure.
6 min read Read →
Programming precision
Training Science
Programming Precision: Why Templates Fail
The fundamental flaw in generic programming — and why the most advanced coaching methodology begins not with sets and reps, but with a complete understanding of the human in front of you.
8 min read Read →
The Process

YOUR PERFORMANCE
JOURNEY.

Every Tempo Performance client goes through the same rigorous process. No shortcuts. No assumptions. Pure precision engineering.

01
Consultation
A deep discovery session to understand your goals, training history, lifestyle, and psychological relationship with performance. This is where we begin to understand who you are — not just what you want.
02
Assessment
Full anatomical, physiological, and psychological profiling. Movement screening, structural analysis, strength baselines, and metabolic assessment to establish your complete performance map.
03
Profiling
Genetic and neurotransmitter analysis where applicable. Your biological blueprint decoded to inform every subsequent decision — training modality, recovery protocol, nutritional strategy.
04
Programming
Precision protocol design built to your individual blueprint. Not a template with your name on it — a programme engineered from your data, your structure, your psychology, and your goals.
05
Execution
Coached implementation with weekly progress tracking, real-time programming adjustments, and ongoing accountability. You will always know exactly where you are and where you are going.
06
Transformation
Measurable, evidence-based results. Not before-and-after photos — precision-documented performance and physiological improvements that prove the process. Your goals made real.
We Make Your Goals Into A Reality

Ready to Begin?

Apply for Consultation
Contact

BEGIN
THE PROCESS.

Every Tempo Performance journey begins with a consultation. Apply below and Julian will respond within 24 hours to schedule your initial session.

LocationGreat Portland Street, Marylebone
London W1W 6LA
Emailinfo@tempoperformance.com
Studio HoursMonday – Saturday: 06:00 – 20:00
Sunday: By appointment only
Consultation Application