Programmes
Functional strength training builds strength in the movement patterns your body actually uses, carrying, lifting, pushing, pulling, rotating. The result is a body that doesn’t just look strong. It is strong, in every direction that matters.
Functional Strength
Functional strength training focuses on compound, multi joint movements that train muscles to work together, mimicking real world activities and sport specific demands. Unlike isolation exercises, functional training improves movement quality, joint stability, and neuromuscular coordination alongside raw strength.
Functional Strength
Mariyan Voykov brings over a decade of multi sport experience, football, boxing, powerlifting, calisthenics, to his functional training coaching. His programmes are built around athletic movement, not just aesthetics. Clients develop genuine physical capability alongside the physique changes they’re looking for.
Functional strength training suits anyone who wants to build a body that performs as well as it looks, whether that’s a recreational athlete, someone returning from injury, a busy professional who wants to feel physically capable in daily life, or a competitor looking to develop sport specific strength.
BTX is at 529a Finchley Road, NW3. A private studio, fully equipped for functional strength, barbell work, and conditioning, with no queues, no distractions, just focused coaching.
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.
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.
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.”
Programmes
Free strategy call
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.
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.
We regularly work with clients managing type 2 diabetes, hypothyroidism, osteoporosis, high blood pressure and recovery after surgery, following NHS physical activity guidance. We liaise with your GP or specialist where appropriate.
Free strategy call
Book a free 15 minute strategy call. We’ll map your goals, your schedule and the plan that gets you there.
