Private 1 to 1 personal training · Hampstead NW3 · North London
Clinical personal training in Hampstead, North London. Built on InBody 770 body composition scans, personalised blood work with Dr Matt Milner (A&E consultant), gut microbiome testing, and periodised strength and conditioning programmes that fit your life.
Nutrition and supplementation protocols designed by James Cooper, BSc Nutrition, King’s College London.
Your programme comes from your biology, not a template.
Why BTX?
Lasting change needs a programme, not drop in workouts. Everything at BTX is built around your data, your schedule and a coach who is with you for every rep.
We work with you, not against you.
Choose your path
In the studio or online, with the same coaching method behind both. Not sure which suits you? That is what the strategy call is for.
Studio · Hampstead
Private 1 to 1 personal training at our Finchley Road studio. 60 minute sessions with your coach throughout, and most clients train 2 to 4 times a week.
Online · Kaizen Warrior programme
Delivered through Kaizen Warrior, our online coaching programme: personalised workouts and private check ins with your dedicated coach, at home, in your local gym or on the road.
The full BTX method · Delivered anywhere in the world
Clinical online personal training built on the same principles as our Hampstead studio in North London.
Personalised blood work, strength and conditioning programming, and nutrition protocols designed by James Cooper, BSc Nutrition, King’s College London.
Your programme comes from your biology, not a template.
We work with you, not against you.
The Kaizen Warrior method
Free strategy call
How it works
15 minutes with a BTX coach to talk through your training history, health, goals and schedule. No sales pressure.
Your InBody 770 scan measures body fat, skeletal muscle and metabolic rate, alongside a full movement assessment.
Periodised training and realistic nutrition, with a rescan every 4 weeks, so progress is measured, not guessed.
Most clients see measurable change within 4 to 6 weeks.
Client results
“I am halfway through my 12 week program and have already dropped 5% in body fat and added muscle.”
“I have been training with Justin for over a year and am blown away with the result. Justin and the team really know their science.”
“The team at BTX supported me in getting my fitness and strength back. Justin is incredibly focused and committed.”
Team BTX
Founded by James Cooper, BTX is a private training studio on Finchley Road. Every session is 1 to 1, and every coach works from your data, not guesswork.
Video testimonials
Real BTX members talking about their training, their coaches and the results they didn’t think were possible.
FAQ
Still unsure if BTX is right for you? Ask us directly. We reply fast on WhatsApp.
Training at BTX is priced as a membership, not per session, because lasting results need a programme rather than drop in workouts. We match the plan to your goals on your free strategy call. Most clients train 2 to 4 sessions a week.
Yes. We start from your baseline, whatever that is, and build from there with proper technique, progressive programming and full coaching support from day 1.
Most clients see measurable changes in body composition within 4 to 6 weeks of following their programme consistently. We check it with an InBody 770 rescan every 4 weeks.
No. We don’t prescribe restrictive meal plans. Your nutrition is built around your lifestyle, food preferences and schedule, so it lasts beyond the 12 weeks.
Yes. We work with clients managing type 2 diabetes, hypothyroidism, osteoporosis, high blood pressure, cardiac conditions and recovery after surgery.
Every clinical case at BTX is reviewed with Dr Matt Milner, A&E consultant and our in-house physician. He oversees blood work, interprets results in the context of your training, and liaises directly with your GP or specialist where appropriate.
This clinical oversight is one of the biggest reasons clients choose BTX over a conventional personal trainer. Most PT studios cannot offer this.
It’s a free 15 minute conversation with a BTX coach about your training history, health, goals and schedule. You leave with a clear next step, and there is no sales pressure.
Yes. BTX Online gives you a structured programme and private check ins with your coach, whether you train at home, in a local gym or on the road.
The BTX newsletter
Evidence based training, nutrition and fat loss advice from the BTX coaches, straight to your inbox. Sign up and get our free 7 Day Nutrition Kickstart Guide.
No spam. Unsubscribe at any time. By subscribing you agree to our Privacy Policy.
Inside BTX
An RMR test measures one number: how many calories your body burns at complete rest. It takes about ten minutes of lying still and breathing normally, and it replaces a formula’s estimate of that number with a measurement. Two things up front, before you read any further. We do not measure resting metabolic rate at […]
Keeping weight off after rapid weight loss is a different job from losing it, and the honest headline is that most people regain a substantial share of what they lost, but not all of it. Pooled across 48 studies and more than 3,200 participants, roughly 60% of lost weight was regained by 52 weeks after […]
If you want protein to maintain muscle while losing weight, the ranges the research actually uses are roughly 1.0 to 1.6 g per kg of body weight per day, spread across three main meals at 25 g or more each. That is the honest number. The honest effect size is smaller than almost anything else […]
Free strategy call
Book a free 15 minute strategy call. We’ll map your goals, your schedule and the plan that gets you there.
