Hi, I’m Marta — founder of CORE
Also known as Grumpy Jogger :)
I created CORE because I know what it feels like when your body isn’t working with you. I have been in your shoes. And after all the years I spent working and learning in the health & fitness industry, I decided it was time to share my knowledge, my expertise, and my support on a larger scale.
CORE is a system that helps women rebuild their bodies from the inside out. Through structured pathways, it guides them to heal from within while building a strong and confident body.
Core pillars I use in my programs & systems:
✨ Simple habits, planning & accountability
🥗 Nutrition & wellness strategies
🩰 Movement (Pilates, fitness, running)
I may be a coach and a system-builder by profession, but off-duty, I'm a runner, traveller, bookworm, picture-taker, annoying wife, animal lover & proud mom of 4 kitties 🐾
You can read about my traveling alter ego on my blog, Grumpy Nomad Cat, where I help you to plan less and travel better.

Why CORE Exists
CORE exists because I realised most people don’t struggle with knowledge — they struggle with consistency.
For years, I saw the same pattern: people trying harder, following stricter plans, and still ending up stuck.
More than 15 years of working with people made me realise that lifestyle changes, weight loss, healthy eating, and effective workouts don't come from motivation and "pushing" yourself. They come from structure, systems, and habits that are easy to implement and actually doable.
So I stopped focusing on motivation and started building systems instead — simple structures that work in real life, not ideal conditions.

My unique take?
MOST FITNESS COACHES IGNORE HABITS & LIFESTYLE.
MOST HABIT & LIFESTYLE COACHES IGNORE FITNESS.
TROUGH CORE, I BRIDGE BOTH.
What Shaped CORE
1. WHO I AM AND WHAT I'VE BEEN THROUGH — THE ORIGINS OF CORE:
I’ve spent years in the fitness and wellness world, but I’ve also lived the reality most people don’t talk about — inconsistency in real life.
Not the “I don’t know what to do” kind. The “I know what to do, I just can’t keep doing it when life gets messy” kind.
I’ve dealt with:
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Falling off routines every time I travelled
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Gut issues, eczema flare-ups, inflammation
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Burnout from trying to do everything at once
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Starting and stopping fitness (running included) more times than I can count
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Gaining and losing weight and being unhappy with the way I look
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Being strict, but never consistent — trying to fix things with discipline instead of structure
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Feeling “healthy on paper” but completely off in real life
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Planning everything perfectly, but still feeling like I couldn’t hold it together
I’ve also rebuilt my entire life after moving across the world — while dealing with health issues, unpredictable schedules, and constantly shifting routines.
So yes — I understand what it feels like when effort doesn’t translate into consistency.
2. WHAT I HAVE OVERCOME — AND HOW:
At some point, I stopped trying to fix myself with more motivation, discipline, or perfect routines. Instead, I started building systems. Simple structures that still work when life doesn’t. That shift changed everything.
I moved out of chronic inconsistency, constant restart cycles, and the frustration of doing “all the right things” but not seeing it stick.
Over time, I rebuilt my health, stabilised my gut and skin, returned to running and training consistently, and created a lifestyle that supports my energy instead of draining it.
Not through perfection — but through structure that adapts.
3. WHAT I REALISED ALONG THE WAY:
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Consistency has nothing to do with motivation
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Routines have to bend with life, or they break
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Discipline without structure doesn’t last
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Your environment shapes most of your habits
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Health improves when habits match your identity
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Most people don’t need more information — they need a system they can actually live with
These weren’t ideas I learned from theory.
They came from trial, error, and rebuilding my own life over and over again.

4. WHAT CHANGED WHEN I CHANGED MY APPROACH:
Here’s what changed when I stopped relying on motivation:
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I built daily and weekly systems that hold up even when I travel or change routines
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My gut health and skin flare-ups became manageable through consistency and lifestyle structure
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I rebuilt my running and fitness without restarting from scratch every few months
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I created a lifestyle that feels calmer, more stable, and more aligned with my energy
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I turned my own systems into tools like HABIT, FLORA, and CORE resources
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I developed frameworks that help simplify health, training, and habits in real life
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I stopped living in cycles of “start over” and built something sustainable instead
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I turned planning, organisation, and structure into strengths that transformed my health and my business.
I didn’t become a different person.
I just stopped trying to force myself into routines and habits that didn’t fit my life.
5. WHAT CORE IS BUILT ON:
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Building routines that actually fit real life
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Staying consistent through travel, stress, and change
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Simplifying training, food, and health instead of overcomplicating them
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Building habits that feel natural, not forced
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Improving sleep, stress, and recovery through structure
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Learning how to reset without starting over
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Creating a lifestyle that feels stable instead of reactive
This is not about perfection.
It’s about building something you can actually live with.
6. WHY I CHOSE THE NAME "CORE":
CORE started from my own struggles.
I was born with a hyperextended lumbar spine that caused ongoing back issues. That led me to physiotherapy and Pilates at an early age. Later, I started experiencing gut problems, which made me focus more on internal health and the importance of gut health and microbiome. "Core" has become not only my interest but my life. And rebuilding my body from the inside out became my priority.
Over time, what started as personal problem-solving evolved into a broader framework for health, movement, habits and lifestyle.
Now I want to share my knowledge, expertise, and support with a larger audience. I want more people to understand that the body functions as a system, not separate parts. And I want them not only to learn how to rebuild it, but to actually do it, and make it last.
I kept the name CORE because it represents what I believe:
To build a strong and healthy body, we need both internal and external health. One cannot exist without the other.
Real health is built from the inside out — from structure, habits, and the foundation you build your life around.

Want to know more about my experience and credentials?
























