About usOffersDeep Dive3-minute analysis
A person sitting calmly by the water in the evening light

Jonas & Ines

Two paths. One insight.

The Regulated Athlete never started as a business. It started because we both went through something we couldn’t understand on our own.

Scroll
Jonas and Ines

Who we are

We know both sides of this gap.

Jonas was a rowing world champion and a year later barely able to train. Ines was a European rowing champion and a sports scientist, and still missed what was happening to her own body.

We both made the same mistake: we optimised symptoms instead of understanding what lies beneath.

These two paths became one shared piece of work. Today we work with athletes and entrepreneurs who are standing exactly where we once stood.

We call ourselves Ecosystem Builders. With every ambition your outer ecosystem grows: training, team, clients, responsibility, family. Your inner system has to carry it. That’s where we start, so the outside can keep growing.

Jonas Kilthau

Jonas Kilthau

Rowing World Champion · Master in Strategy · Founder
Where I was
Rowing world champion, 25 hours of training a week
Turning point
November 2015, erg test before the Olympics. The lid didn’t come off
What I changed
Understood recovery as a system. A break alone was never enough
Where I am today
97 to 98 percent of my performance with half the training

For a long time I believed performance meant always doing more. More training. More discipline. More toughness. And to be honest, it worked for a long time. In 2014 I became rowing world champion.

A year later I could barely train. The diagnosis: Epstein-Barr virus, massive inflammation markers, a body in permanent alarm. The doctors prescribed six months off. But something in me knew: if I just carried on like before afterwards, I’d be back at square one.

During that time Ines was by my side. She showed me things I had never considered as an elite athlete. Nutrition, gut health, recovery, minerals. And even more important: what it feels like to accept help.

After a few months I was back at 97 to 98 percent of my former performance on the rowing machine, with maybe half the volume. Today I train one to two hours a week.

I only understood why it worked later, in my master’s thesis on ecosystems. Since 2004, when I started rowing, I’ve been working with systems that have to play together: first in the boat, then in companies, today with athletes and entrepreneurs.

Most people optimise symptoms. Training plans, calories, supplements, routines. And the actual foundation of performance gets completely overlooked.
Ines Kilthau

Ines Kilthau

European Rowing Champion · Sports Scientist · Founder
Where I was
European champion and sports scientist who did everything right
Turning point
Sick leave. It felt like losing control
What helped me
Yoga, the first real body awareness in years
What I do today
Working with high performers who fight against themselves

I was a sports scientist. I knew how bodies work in theory. And still, for years, I didn’t notice what was happening to my own.

At some point I couldn’t make decisions any more. I forgot appointments. Even simple things overwhelmed me. When my doctor signed me off sick, there was no relief. It felt like losing control.

During that time Jonas was my greatest support. He never wanted to fix me. He gave me something I hardly knew before: the feeling of simply being allowed to be. Without performing. Without having to prove anything.

Then came yoga. For the first time in years I felt calm again. And at some point I understood something that changed my life: all my life I had tried to earn my worth. Through performance, discipline, recognition from the outside.

Real performance doesn’t come out of survival mode. It comes from calm, from stability and from connection to yourself.

What we stand for

Four beliefs that carry our work.

01More connected. Less hard. Success doesn’t need a fight against yourself. It grows when the inside and the outside fit together.
02Cause before symptom. Training plans, supplements and routines are tools. They don’t replace understanding why your body shuts down.
03Fit for everyday life, or not at all. Everything we recommend is built for people with full calendars and high standards. No second life next to your life.
04In the end, you don’t need us any more. Our longest coaching deliberately ends without a follow-up offer. That proves our work.

Write to us directly

No contact form. Just the two of us.

If something is on your mind or you have a question, just write. Your email lands with one of us, in English or German.

Jonas Kilthau
Jonas Kilthau
Rowing World Champion · Master in Strategy · Founder
jonas@regulatedathlete.com Connect on LinkedIn
Ines Kilthau
Ines Kilthau
European Rowing Champion · Sports Scientist · Founder
ines@regulatedathlete.com Connect on LinkedIn
Start the 3-minute analysis free · 3 minutes