High Performance Coaching · Functional Medicine
Get the most out of
your potential.
Many factors influence your performance, and only when all of them are in place do you truly unlock your full potential - in sport as well as in your professional life. It stems from a body where biochemistry, hormones and energy production - all the way down to the mitochondrial level - function optimally. By combining training and physiological testing with functional medicine, we optimize the entire system to ensure lasting progress and performance.
Our approach
We focus on everything
that influences your performance and health.
Where most focus on individual components, we look at the whole picture - the foundation that determines whether results come, and whether they last.
01
Physiological profile
We map your full physiological foundation through advanced testing and identify your limitations so we can work on them with precision.
02
360° insight
We combine methods from the world of elite sport with functional medicine, giving us a complete 360° understanding of your body, so nothing is left to chance.
03
Individually tailored
No two bodies are alike. That's why we build each program based on your biology, your biomarkers, your physiological profile, and your goals.
04
Lasting results
We don't chase quick fixes - they rarely lead to lasting results. We help you build performance, energy, and health that will stay with you for life.
For whom
Two different worlds.
The exact same method
to perform at your best.
Whether you're an elite athlete, a recreational athlete, or a business professional, the same methods will help you perform. We've built a complete approach that takes you from good to extraordinary.
For athletes
Maximize your full potential
High performance coaching, physiological testing, and metabolic optimization combined in one system - designed to push your upper limit.
- Physiological testing (VO₂max, lactate, muscle oxygenation, respiratory data, physiological bottlenecks etc.)
- Individual training programs across all endurance sports
- Metabolic optimization (energy production, mitochondria, hormonal and biochemical profile)
For business
Access elite sport methods at the office
Top executives live under the same pressure as elite athletes, yet rarely train their recovery - we want to change that. Business professionals have a lot to learn from how the elite operates.
- High performance workshops for teams and leaders
- Energy, focus and cognitive performance
- Stress management and recovery in everyday life
Our expertise
The tools that move you forward
Behind every program lie two professional foundations: advanced physiological testing and in-depth functional medicine. That's what sets us apart.
Sports physiology
Advanced physiological testing
VO₂max, lactate values and thresholds, muscle oxygenation, respiratory data, physiological bottlenecks and more. We map your physiology down to the smallest detail and give you precise, data-driven training zones and interventions.
See all tests ↗
Functional Medicine
In-depth biochemical analysis
Comprehensive analyses of hormones, mitochondria, energy production, biochemistry, and gut health reveal precisely what's truly holding you back, and how we optimize you.
See all analyses ↗About us
Experts who live it themselves
Behind Peak4ever is a team where elite sport meets biomedical research - and where the methods are tested on us before they reach you.
Mads Tærsbøl
Physiologist · Elite athlete
Trained physiologist and former elite athlete with over 14 years of experience competing at the highest level. He also holds private certification in Functional Medicine and has worked with federations, teams, and athletes at the Olympic level. He brings this breadth of experience directly into his work with every client.
Katrine Nørgaard
Ph.D. · Functional Medicine
With her research background and advanced training in Functional Medicine, she works with the body's biochemistry, hormones, digestion, and mitochondrial energy production to identify your bottlenecks - and where we can make the biggest impact by optimizing you.
Results
Change you can feel
A selection of past clients' own words.
★★★★★
"Peak4ever was without a doubt crucial to me achieving my best race to date at CPH Marathon 2025 — I wouldn't have had the same fantastic experience on May 15th without it. The program's focus on women being right up at the starting line resonated with me immediately. The training was hard, but the community made it both more fun and more manageable, and running together helped keep both pace and motivation up. The program required many hours of training, but the clear structure and sessions with Mads and Katrine gave a real understanding of training, nutrition and recovery. Even though I was nervous going into race day and doubted myself, the race went better than I had dared to hope."
— Kathrine Wittrup
★★★★★
"With you as our coach Mads, the word dedication has taken on a whole new meaning — and here 'the sky really is the limit'. You're so motivated on our behalf, and no matter our level you engage fully. We just know that every detail, every piece of advice and every recommendation has been carefully considered. You never compromise on your work; even when you're busy, we still get thoroughly prepared training sessions, and you're always ready to listen to our questions, concerns or aches, take the time to answer, and stay attentive and curious. Thank you feels like a poor word. And finally: on yesterday's session Freja, Louise and I ran together and talked about how we can't imagine ourselves without you as our coach — we agreed we have to keep going until we're no longer called speed squad, but senior squad. Thank you a thousand times for you and everything you give us — I don't think you even know what it means."
— Vibe H.
★★★★★
"Training with personalised heart rate and pace zones made this training approach far more structured than others I had before. Mads and Katrine focused on building a strong base first and refining it over time. The program went beyond running as it offered valuable monthly impulses on nutrition, hormones, and strength/ coordination work. Being part of a committed group of strong women and spending countless days training together was amazing and so motivating. Although the program was challenging and demanding, it showed how strength and consistency develop when women are trained with intention."
— Tabea
Let's talk
Take the first step toward your full potential
Have questions, or curious about how we can help? Reach out and we'll get back to you as soon as possible.