Transform your physique. Expand your capacity!
The IRT Method is a training approach designed to develop far more than looks.
Through resistance training, we integrate strength, power, mobility, stability, cardiovascular capacity and motor control, while building more muscle, definition and a balanced physique.
A body that looks good, is strong and is capable.
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Health · Performance · Longevity
Muscle matters!
For a long time, we were taught to see muscle as a matter of appearance, something secondary when it came to health and longevity. But science has shown that view is too narrow. Skeletal muscle plays a fundamental role in health, physical performance and healthy ageing.
That is why we need to develop everything it allows us to do:
That is the logic of the IRT Method: putting muscle at the center of an integrated approach that brings together looks, physical capacity and health.
Ready to build a stronger body, protect your vitality and show up, full of energy, for the people you love? You are in the right place.
Start my pre-assessmentThe problem
Ageing is inevitable. Losing your vigor is not.
From your 30s, the body starts losing muscle, strength and stamina, slowly and quietly. The good news: with the right stimulus, this process can be slowed and often reversed.
References: Volpi et al., 2004; Fleg et al., Circulation, 2005; Reid & Fielding, Exerc Sport Sci Rev, 2012.
Do you recognise any of these signs?
Your body stopped respondingYou train and put in the effort, but results no longer come like they used to.
Less strength in daily lifeClimbing stairs, carrying things or getting up from the floor takes more than it should.
Low energyYou reach the end of the day with no energy left for what matters most.
Pain that holds you backYour joints complain whenever you try to push harder.
Changing test resultsBlood pressure, glucose or cholesterol have started to drift out of range.
The start-and-stop cycleYou have tried several times without knowing whether the training was right for you.
It is not your age. It is training without a prescription.
Most training treats muscle as appearance only: it pushes you to exhaustion, changes exercises at random and measures progress only in the mirror.
Nobody measures your strength, power, mobility or fitness. And without measuring, nobody knows what you are losing or what to fix first. That is exactly what the IRT Method solves.
The foundation
Resistance training that develops every capacity of the body.
Typical training usually develops one or two capacities, almost always strength and muscle size. Everything else is left behind.
The IRT Method develops all of them, in an integrated and progressive way, through resistance training. When your whole body improves in balance, the results show up everywhere:
- LooksMore muscle and definition
- Fat lossLess fat, more muscle
- FunctionA capable body in daily life
- VigorEnergy and drive
- LongevityIndependence for many years
About Matheus Baltar
Over my career, I prepared competitive bodybuilding athletes before specialising in Exercise Applied to Cardiac Rehabilitation and Special Populations, and completing additional training in Anatomy and Musculoskeletal Injury Cases through HarvardX, from Harvard University.
That experience showed me that resistance training can deliver much more than looks, and that most training wastes that potential. Yet despite scientific advances in resistance training, programs are still often built on ready-made formulas, generalisations and poorly grounded decisions.
That concern led me to develop the IRT Method, an approach that integrates the development of physical capacities to build a body that is not only better looking, but also stronger, more resilient, more functional and full of vigor, through the careful application of scientific evidence.
Nutrition integrated with your training.
Training and diet need to work together. When your nutrition is planned in line with the IRT Method, matching your goal, your routine and each training phase, your body responds better to every stimulus.
That planning is handled by our nutritionist Jullyane Baltar. Nutrition coaching is optional.
Your training starts with data, not guesswork.
Assessments and monitoring that let us decide with precision
- Postural assessmentImbalances and deviations in your posture
- Biomechanical assessmentHow you perform movement patterns
- Key differentiatorEffort and recovery trackingRPE and perceived recovery logged every session
- In personNeuromuscular assessmentStrength measured with the DynaMo Plus dynamometer (VALD)
- In personCardiovascular assessmentVO₂max with a heart-rate monitor and validated test
- In personBody composition and healthBody composition, history and lab tests
Performance & Health CheckupIn person, all of these assessments come together in our complete testing battery.
In person · João Pessoa, BrazilYour training in the app
Training on your own? The app shows you every step.
Your program lives on your phone, explained in a simple, clear way. You arrive at the gym, or train at home, knowing exactly what to do.
- A video for every exerciseSee the correct technique before you start.
- Everything set for youSets, reps, loads and rest, no guessing.
- Your progress on recordEvery session is saved so you can follow your progress.
- In the palm of your handIncluded in every format, in person or online.
What clients say
Real Google reviews, translated from Portuguese
My experience has been, and still is, the best possible. Complete professionalism from the first contact to the final result. Everything perfect!
Perfect! I have trained with them for years and it is the best training I have ever done. Training that really gets results! I am never stopping!
I live in Berlin, but whenever I am in João Pessoa I train with Matheus, and have for more than three years. My husband too. Highly recommended, he is very good at what he does. And an excellent person.
Who it is for
Coaching for people who want to understand what they are doing.
It is for you if…
- You have never trained, or you already train but feel stuck.
- You want a better physique without sacrificing your health.
- You feel you have lost strength or energy and want it back.
- You value close coaching and understanding the reason behind each step.
- You are willing to follow a medium- and long-term strategy.
It is probably not for you if…
- You only want a ready-made workout to follow alone.
- You expect a transformation in a few weeks.
- You judge a workout by how exhausted you feel, not by the results.
In those cases, a different kind of service may suit you better.
Choose how you want to be coached
One method, different formats
- Online · AnywhereOnline coachingRemote assessment and coaching, from any country.
- In person · João Pessoa, BrazilPersonal trainingCoached sessions at the gym, with Baltar or his team.
- In person · João Pessoa, BrazilIn-person coachingIn-person assessment and training in the app, on your own.
- In person · João Pessoa, BrazilPerformance & Health CheckupA complete assessment of your body.
Optional nutrition coaching in every format. On WhatsApp, our team recommends the right format for you and explains the investment.
Frequently asked questions
What is the difference between in-person and online coaching?
The main difference is the initial assessment. With in-person coaching, the full checkup takes place at the clinic and the gym. Online, the assessment is based on photos, a health history interview and lab tests. Both follow the IRT Method, with individualized training, ongoing coaching and adjustments along the way.
What is the difference between in-person coaching and personal training?
With in-person coaching, you do the checkup at the clinic and receive an individualized, periodized program to follow on your own. With personal training, on top of the planning, you are coached directly by me or by a professional from my team, trained by me, who guides your technique at the gym.
Can I still train directly with Baltar?
Yes. With personal training, you can be coached directly by me or by a trainer from my team, trained by me to apply the IRT Method. On WhatsApp, the team checks schedule availability.
Who designs all the training programs?
I, Matheus Baltar, am responsible for the assessment, planning and design of every training program, following the principles of the IRT Method. With personal training, sessions are led by me or by a team professional, according to the plan.
Can I train at any gym, even the one in my building?
Yes. Your program is individualized and can be adapted to the equipment available at your gym, respecting your goals and training conditions.
Do I need to live in Brazil?
No. Online coaching works from any city or country, with a structured remote assessment. The in-person formats (checkup, personal training and in-person coaching) take place in João Pessoa, Brazil.
I mainly want to look better. Is the method for me?
Yes. The IRT Method works on muscle growth and definition alongside the body's other capacities. With a stronger, more mobile base, you train better, recover faster and see results more consistently.
Does coaching include a diet plan?
Nutrition coaching is optional. It is provided by nutritionist Jullyane Baltar, from the SCI-FIT team, and can be added to your plan, integrated with your training.
How much does it cost and how do I pay?
Prices and payment options depend on the format you choose and your country. The team shares them on WhatsApp after the pre-assessment.
Start with the pre-assessment
See how the method would work for you
A body that looks good, is strong and works well, today and 20 years from now, starts with knowing exactly where you stand.
- You answer questions about your goals, routine, health and preferred format.
- You get an initial read of your profile at the end.
- You talk to the team on WhatsApp, who already know your case and explain the format and investment.
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