Principle Guy Vision
We are Duolingo for Movement
To make movement education accessible to everyone in a playful way.
Our method is called Fitness Level. We 'gamified' the entire world of movement to make your progress finally visible and fun. Our system maps everything: from gym workouts and home training, through endurance for triathlons, to peak performance (gymnastics) and targeted rehab (physio).

How it all started
Education and sporting achievements
My journey started at the Faculty of Physical Education and continued with top-level sport achievements that shaped my principles.
Winning a bodybuilding competition primarily on a McDonald's diet
MSc. FPES - coaching + physical education teaching
Erasmus in Norway - Physio & Sports Management
European Champion in Jiu-Jitsu
Birth of Principle Guy
We created a playful system for any movement goal, turning it into a game that adapts to you.
Gamified system that turns movement into a game
From gym training to home workouts
Through endurance for triathlons
To peak performance and targeted rehab (physio)

Present and Vision
From leading Epix Gym, through scaling the team, to educating the next generation and helping companies grow healthily.
Co-founder and head trainer at Epix Gym in Bratislava
Mentor at innovative AI & IT high school Skyro
Corporate well-being programs, Health Days and Workshops

Team


Daria Lohvyn
MarketingDaria brings a creative soul to the world of numbers and training. She ensures our vision is not only clear but also visible. With attention to detail and modern aesthetics, she communicates Principle Guy values and builds a community of people for whom movement is a game.

Daniel Abrahamovský
VytrvalosťDaniel is an expert in endurance sports. Having completed a Half-Ironman himself, he translates his experience into training plans for our clients who want to improve in running, cycling, or swimming.

Karin Ošvarthová
RehabKarin combines the precision of yoga and pilates with the power of weights. Her goal isn't just performance, but building a healthy, functional body that will serve you for decades. She teaches clients how to exercise sustainably, technically correctly, and with joy.