Personal Training Sessions
Dedicated one-on-one sessions with your coach. The number depends on your membership.
Personal Training
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.
What's included
Everything you need for sustainable progress.
360° Intake
A complete assessment of your training, nutrition, lifestyle and current situation. Together in one integrated system.
Personal Plan of Action
A clear structure that guides your weekly actions and keeps your progress moving.
Training App Access
Your training, progress and guidance available wherever you go.
Progress Tracking
Measure what matters and adjust your approach with purpose.
24/7 Support & Accountability
Continuous guidance between sessions to help you stay consistent.
Why ONE personal training?
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.
Individual Expertise
Your ONE coach understands your goals, challenges and progression.
Structured Progression
Every phase has a clear purpose and builds towards the next step.
Complete Guidance
Training, nutrition and lifestyle work together as one system.
Personal Accountability
A coach who keeps you focused, consistent and moving forward.
1,000+ members training weekly.
Barbara van Erp, 56
This place is more than just a gym; it’s truly a life-changing space. I’ve been training here for two months now, and I never imagined I would get this committed to my fitness journey.
Erdal Aydin
Rick Luger, 36
Private Training Basic
Louise Schalkwijk, 49
Semi Private Training Premium
- Lose body weight
- Become more energetic
- Move better
Giulia Battaglia, 33
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
Franca Cumbo, 54
Semi Private Training Basic
- Lose body weight
- Become more toned
- Feel more energetic
Training at One has genuinely changed my life. I don’t just feel physically better than I ever have — I’m emotionally stronger too. The trainers here are incredibly dedicated; they truly understand life’s challenges and know exactly how to adapt your program to get the most out of you, even on days when you’re exhausted or emotionally drained. The environment is wonderful. Everyone is friendly, and you can tell people genuinely want to be there. It’s an incredible place, and I’m so grateful I found it. Highly recommend to anyone looking for more than just a gym.
Natalie Wills, 44
Jurriaan Puijpe, 31
Semi Private Training Premium
- Lose body fat
- Gain body mass
Joined ONE at the end of March and it’s honestly been one of the healthiest changes I’ve made this year. What I appreciate the most is how sustainable the approach feels — not just “go hard at the gym”, but actually building habits that fit my real life structure. A definite additional call out is for ONE environment which is welcoming, motivating and grounded. Very happy I started this journey here.
Gabriel Martins, 41
Barbara Van Erp, 56
Personal Training Basic
- Improve health metrics
- Lose body fat
Came back to training after a long break (and I’ve been working out for years) and honestly ONE has been the best training I’ve ever had. In just 3 months I’ve had amazing results, proper body recomposition and I feel stronger/leaner already. The sessions really push you, but in a good way and it actually works.
Panos Ellinas
Siobhan D'Abreu, 30
Personal Training Basic
- Improve overall health
- Mental well-being
- Muscle building
I’ve been blown away by my experience at One. It’s a gym that feels personal, like an actual community. When I started doing private sessions with my trainer, I immediately felt how closely my progress was being monitored to make sure I had the tools to succeed. You’re not just clocking into a class and clocking out. There are real people here who genuinely CARE about your success.
Melyssa Griffin, 37
Olga Pakholiuk, 33
Personal Training Basic
- Improve posture
- Build muscle
Love this gym! The vibe, the concept and the energy - all spot on. It is the most inspiring and supportive workout community I have been part of.
Eerika Roos-Kulvik, 35
Jonathan Butler, 31
Personal Training Premium
- Improve overall health
- Muscle building
- Weight loss
Mirjam Schuele, 45
Private Training Premium
A smarter way to train
Most fitness offerings focus on one thing. ONE brings everything together.
Meet the team
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.
All in. One. One place. The whole picture.
Personal Training Basic
€789,-/ mo
- 8 Personal Training sessions
- 360 degree intake: Training, Nutrition, Lifestyle assessment
- Bi-Weekly plan of action
- 24/7 Support & accountability
- Train App Access
Most popular
Personal Training Premium
4 extra training sessions for just €60 extra.
€849,-/ mo
- 8 Personal Training sessions
- 360 degree intake: Training, Nutrition, Lifestyle assessment
- Bi-Weekly plan of action
- 24/7 Support & accountability
- 4 SPT Sessions (Worth €160,-)
- Train App Access
Personal Training Platinum
€1.149,-/ mo
- 12 Personal Training sessions
- 360 degree intake: Training, Nutrition, Lifestyle assessment
- Bi-Weekly plan of action
- 24/7 Support & accountability
- Priority Support
- Train App Access
Have a question? Let us help
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.
