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Athlete Performance Lab · Berlin-Mitte

Understand your body. Progress in your sport.

Strength, movement, body composition and metabolism work together. We combine measurements with physical examination, then turn the findings into treatment, training, nutrition and recovery guidance.

Understand performance
Diagnostics & recovery
Medical treatment
In practice & in daily life
Google reviews
5.0 out of 5 stars

Sound familiar?

When training alone isn’t enough.

We examine what affects your capacity, from movement and strength to metabolism and recovery.

  • 01Your performance has plateaued despite consistent training
  • 02The same injury keeps setting you back
  • 03Recovery takes longer than it should
  • 04You take supplements without knowing what you actually need
Medical examination at the practice

Examine. Understand. Treat.

Understand your performance.

Examine movement and strength

VALD testing measures movement, strength and differences between sides. Hands-on examination helps connect these data with your symptoms and training load.

See training in context

Depending on your goals, we add body composition, bloodwork, fitness and HRV assessments. Training volume, nutrition, sleep and your history inform the interpretation.

Build a plan you can use

Treatment, training load, nutrition and recovery are coordinated. Supplements are selected according to need. Repeat measurements help us adjust the plan.

Your care with us

Understand. Treat. Keep going.

We connect your story with thorough diagnostics and personal treatment. Together, we turn those insights into a plan that evolves with you.

How it works
  1. Understand.

    We take 60 minutes for your story and a thorough examination. Bloodwork, a body scan or movement testing add to the picture where useful.

  2. Treat.

    We discuss your findings and begin the right treatment. Your personal plan connects medical care with nutrition, movement and recovery.

  3. Keep going.

    You put your plan into practice. Together, we review changes in your symptoms, movement and measurements, and adjust the next steps.

Jan Okoye-Weeg, physician at Sustainable Med
Jan Okoye-WeegFounder · Physician · Sports scientist · Biologist

Medicine. Sports science. Biology.

Your doctor connects
the whole picture.

Jan listens, examines your joints and muscles by hand, and assesses how you move. Bloodwork, body composition and strength measurements add to that picture. He brings the findings together to plan your treatment with you – at the practice, in training and in everyday life.

Experience from caring for over 50 Bundesliga athletes. Applied to your symptoms and your goals.

Jan Okoye-Weeg’s signatureMeet the practice

Trusted by top athletes

What athletes say.

Derry Scherhant
Derry ScherhantSC Freiburg · 1. Bundesliga
“Jan has helped me focus on improving my weaknesses and is always there to guide me on topics related to performance and recovery.”
Adam Kölle
Adam Kölle1. FC Heidenheim · 1. Bundesliga
“Jan helped me bring structure to my supplementation and understand why targeted nutrients matter for performance.”
Charlotte Pohlmann
Charlotte PohlmannManaging Director, Hy Consulting
“With Jan, I approached my health holistically for the first time. He connects the dots across nutrition, stress and lifestyle – and makes it fit into real life.”
Jan Hoffmann
Jan HoffmannCo-Founder @marta
“One of the few doctors who really makes you feel seen as a whole person – not just as a patient with a symptom.”
Mareike Dottschadis
Mareike DottschadisSports psychologist & mental coach
“I was impressed by his holistic yet performance-oriented approach and his extensive practical knowledge.”
Benedikt Pestel
Benedikt PestelDirector of Retail @Holy
“Jan doesn't take a reactive approach to health, but a strategic one. To me, he's not a classic doctor; he's a true health partner.”
David Preu
David Preu1. FC Union Berlin
“Jan helped me massively reduce my injury risk. Together we found new ways to improve recovery and performance.”
Moritz Wahrlich
Moritz WahrlichDirector of Operations, Holy
“Unlike most doctors, Jan focuses on building long-term health rather than just treating symptoms. You always know what the next steps are – you never feel left alone in the process.”
Jomaine Consbruch
Jomaine ConsbruchSpVgg Greuther Fürth · 2. Bundesliga
“I visited Jan for a general check-up after having a few problems with my knee. He showed me how to engage my muscles fully through specific exercises and techniques.”
Laurenz Dehl
Laurenz DehlFC Rot-Weiß Erfurt
“The athlete's long-term health is the top priority. Jan has explained many new approaches to me, and the empathy and time he takes to help is amazing.”
Frederik Schmahl
Frederik SchmahlProfessional footballer
“Jan helped me take my performance and recovery to the next level. Thanks to his guidance, I've come to understand how important it is to take a holistic approach to the body.”
Matti Wagner
Matti WagnerAlemannia Aachen
“I was very impressed by Jan's work and his holistic approach to performance.”

Frequently asked

Questions before your first visit.

Talk to our practice team
I'm not a pro. Is this still for me?

Yes. The methods are the same; the goals are yours: a first marathon, a comeback after injury, or simply getting measurably better. Ambition counts, not the league.

I'm currently injured. Am I in the right place?

Yes. Injury phases can provide a useful starting point: understand contributing factors, support rehabilitation, and plan the return with clear load stages.

Is this covered by health insurance?

We are a private practice and bill transparently under the German fee schedule for physicians (GOÄ). PKV and Beihilfe reimburse many of our services, though coverage depends on your plan, and performance diagnostics are partly self-pay. You'll know what each test costs before we run it.

Do you also work with teams and clubs?

Yes. We work with athletes from professional structures and collaborate with coaches and physios. For team inquiries, just message us directly.

Do I need a referral?

No referral is required. Book directly via Doctolib, or message us if you are unsure which appointment type fits best.