
Personal training for founders and executives.
Built by one.
1:1 sessions combining science-based strength training with strategic sparring on product, AI, and company-building.
For people in leadership who take both seriously. Built by someone who has spent 10+ years in your world.
Location
1050 Vienna (Margareten)
Languages
English and German
Format
In-person, 1:1 only
What makes this different from "normal" personal training
Vienna has plenty of trainers. The difference here isn't enthusiasm or motivation. It's who's on the other side of the bar — and how the process is built for your reality as a founder or executive.
The trainer has lived your career
Lena spent 10+ years in tech: machine learning and neuroscience research, consulting at Accenture, and founding and leading products (currently CEO of Juice Fitness). When something comes up during a session, you don't have to translate your world first. She already knows what a hard week, a board meeting, or a product pivot actually feels like.
Training and thinking happen in the same room
Sessions combine structured strength work with space for strategic thinking: product decisions, team dynamics, AI strategy, or whatever's actually on your mind. This isn't two services bolted together. It's one coherent experience, because movement creates a mental state that's often more honest and generative than a meeting room.
A private setting, not a gym floor
A small studio in Vienna's 5th district, shared only between trainers and their clients. No open gym. No audience. No noise. The kind of environment where real conversations happen because there's nowhere else to be.

An idea older than you think
The Greek gymnasion was not just an athletic facility. It was where philosophers gathered, where Plato's Academy and Aristotle's Lyceum were located, and where Socrates held conversations with athletes.
The underlying idea had a name: kalokagathia, the unity of physical excellence and intellectual virtue.
What it looked like in practice was informal: conversations happening naturally around training.
The format has changed. The idea hasn't.
Who this experience is for
Most clients come in with one (or more) of these situations:
- You're in a leadership role (founder, CPO, VP Engineering, Head of Product) and fitness keeps getting deprioritized.
- You'd value a space to think out loud on real problems with someone who understands your domain, without scheduling a separate meeting for it.
- You've tried generic training before. It didn't account for a week that changes shape every Monday morning.
- You want to get stronger and more resilient, and you'd rather not spend time explaining your professional context to someone who's never been in it.
- You're based in Vienna or travel here regularly.
- You take your body and your work seriously enough to invest in doing both well.
If you want training that is calm, focused, and built for how you actually live, you'll fit in here.
What a session looks like
A typical session is 60 to 90 minutes, structured and focused.
Check-in (5 minutes)
Energy, sleep, stress, anything relevant physically or professionally. This is not therapy. It's intelligent programming. We train hard without doing something counterproductive.
Warm-up (5 to 10 minutes)
Joint prep and activation matched to the work ahead. No time-wasting.
Main strength work (30 to 40 minutes)
Progressive, technique-led. Squats, hinges, presses, pulls. The basics that compound over time. This is where measurable change happens.
Accessories and thinking space (15 to 20 minutes)
Targeted work for posture, resilience, and whatever your body needs. This is also where the sparring tends to happen, organically and without agenda. Some sessions it's product strategy. Some sessions it's just the workout.
Next-step clarity (2 minutes)
You leave knowing exactly what we're building toward. No ambiguity about what comes next.
Who you're training with
Lena Traninger spent 10+ years in the tech industry: machine learning and neuroscience research, management consulting at Accenture, and as a founder and product leader. She is currently CEO of Juice Fitness, a Vienna-based healthtech company.
At some point she got serious about training, went deep on the science, and got certified. The combination isn't a gimmick. She understands how leadership in tech actually works: the pressure, the pace, the decisions that don't have clean answers. When you train together, you're not explaining your world to someone who doesn't live in it.
Her approach is evidence-based and data-driven, the same way she builds products. No programming by intuition. No wasted sessions.

FAQs
Work together
Personal training + a thinking partner
If you want structured strength training and a thinking partner who understands your world, this is the next step.
Share a bit about your role, your current training reality, and what you'd like to be true 6–12 months from now.
We will start with a short intro call so we can see whether the fit is right on both sides.