About me · Sportcity Heerenveen
Christiaan Groen
I founded Groen's Fitness Forge with one clear conviction: everyone deserves to feel strong, energetic, and pain-free, regardless of their age. My goal isn't just to help you work out, but to guide you towards a sustainably healthy lifestyle and a body you can rely on.

Training
Training and registrations
- Hanzehogeschool Groningen · 2023
Bachelor of Physiotherapy
Degree programme in physiotherapy. - BIG-register (CIBG)
BIG-registered physiotherapist
Listed in the Dutch BIG register and in the base register for physiotherapists of the Individueel Register Fysiotherapie. - Myofasciale Pijn Seminars Groningen · 2026
Dry needling (DN-1 and DN-2)
Dry needling certification courses, accredited by KwaliteitsHuis Fysiotherapie. - Perspectief · 2026
Lifestyle coach (GLI)
Training in the combined lifestyle intervention (GLI). Registered as a lifestyle coach in the Individueel Register Fysiotherapie. - Chronisch ZorgNet
sPAV specialisation
Member of Chronisch ZorgNet as a physiotherapist for peripheral arterial disease. Emergency response (BHV)
Active registration as a certified emergency responder.
The Forge
The meaning behind Groen's Fitness Forge
Groen
Fitness
Forge
The name, broken down
Groen
That's me, of course. My name personally guarantees the quality, safety and medically grounded guidance you get here. But in sport and rehabilitation, 'green' also stands for health, vitality and progress; the green light to move pain-free again.Fitness
This represents the complete range of services I provide to optimise your physical health and performance.Forge
A forge is where raw metal is shaped with fire, force and utmost precision into an unbreakable result. That's exactly how I see working on the human body. Forging isn't a magic trick; it takes heating, shaping and cooling, again and again. With the right effort we forge you, through trial and error, into the strongest and fittest version of yourself. And all of this happens in the safe, medically responsible environment of the Forge.
Three roles, one goal
In a traditional forge, the smith is the master of his tools. Within the Forge, so am I, with three specific specialisations that complement each other seamlessly: physiotherapist, personal trainer and sports masseur.
Where the physiotherapist restores the foundation after an injury, the personal trainer builds your strength, limits and endurance. The sports masseur provides the essential maintenance to prevent overload and release stiffness by stimulating circulation. Together they form the complete process of forging a strong, resilient and pain-free body.
The symbol: an anvil surrounded by fire
The Forge logo is an anvil, fully surrounded by fire. This symbol carries the core values of how I work.
Craftsmanship (the anvil)
The anvil stands for pure craft, unshakeable sturdiness and the foundation. Resolving injuries and building the body requires precision work and the right medical knowledge. Your body is the masterpiece. At the same time, the anvil represents the stability (your core) and the resistance needed to grow stronger.The fire
Fire provides the heat to create change. It stands for a passion for the craft, but also has a very literal meaning: it represents that familiar burning feeling in your muscles during an intense workout, or the warmth of improved circulation after a deep sports massage. Without that heat in the smithy nothing can be shaped; without hard work and that stimulus there is no physical growth or optimal recovery.
Philosophy
My philosophy
Knowledge is Strength
As a physiotherapist, I understand how the body moves and what it needs to prevent injuries. As a personal trainer, I know how to translate that knowledge into effective workouts that make you stronger. We train safely, with proper technique, for maximum results.A holistic view
Your health is more than just physical strength. That's why we look at the bigger picture together. We'll focus on nutrition, stress management, and the mental resilience needed to achieve and maintain your goals. It's about creating a lifestyle that supports you in every way.Partnership in health
I am more than your trainer; I am your partner in this process. Your success is my greatest motivation. With personal attention, honest feedback, and unwavering support, I will help you bring out the best in yourself and stay motivated, even when things get tough.
