Personal Training Sessions
Dedicated one-on-one sessions with your coach. The number depends on your membership.
Explore by goal
Everyone sees a part of you. We see the whole picture. We start with who you are and what your goals are.
Explore our memberships
Our memberships are designed to meet your challenges.
Who we are
Find out everything about us.

Real progress begins with the whole picture: your training, nutrition and lifestyle, working together instead of apart. That's the ONE Method. Every session has a purpose. Every adjustment moves you forward.
Between work, family, and everything else life demands, finding the time and consistency to prioritise yourself can feel impossible.
Real progress begins with understanding what works for you. Through personal coaching, structured training and lifestyle guidance, you build the habits and capabilities required for long-term performance. Every session has a purpose. Every adjustment moves you forward.
Everything you need for sustainable progress.
Dedicated one-on-one sessions with your coach. The number depends on your membership.
A complete assessment of your training, nutrition, lifestyle and current situation. Together in one integrated system.
A clear structure that guides your weekly actions and keeps your progress moving.
Your training, progress and guidance available wherever you go.
Measure what matters and adjust your approach with purpose.
Continuous guidance between sessions to help you stay consistent.
Your body, lifestyle and goals are unique. At ONE, your training reflects that: one-on-one coaching in a safe, judgment-free space, with a coach who knows your whole story and a tribe behind you.
Iris, 33

Mozart, 42
Personal Training Basic

Stevan, 36
Personal Training

In just six months, I’ve lost weight, built strength, and achieved more than I thought possible. This gym’s professional approach, personalized programs, and supportive environment make it a great choice for anyone serious about their fitness goals.
Giulia Battaglia, 33

Lous, 35
Personal Training Basic

Most fitness offerings focus on one thing. ONE brings everything together.
At ONE, your progress is a team effort. Every week, the full team reviews which clients are on track and who needs more support. Behind every trainer is a mentor. Behind every mentor is Glenn. You don't just get a coach. You get a team with a proven method, built to get you where you want to go.

4 extra training sessions for just €60 extra.
We accept IDEAL and credit card. You need a Dutch bank account.
You can pause your membership for up to 4 weeks per calendar year (2+2 or 4 consecutive weeks), with 4 weeks' notice via the Trainin app. Separately, each credit equals one session; credits stay valid for 2 periods (8 weeks) and expire after that. Pausing doesn't apply to one-off Flex packages.
Your first payment is due before your intake session, then every 4 weeks after that (not on a fixed monthly date).
There's no separate pricing for injuries or physical limitations. The memberships are the same for everyone. What changes is the plan itself.
Memberships are billed every 4 weeks. For more flexibility, our Flex packages are paid as a one-off and run for 4–8 months.