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Jonny Stahl - Rehab & Performance

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Berlin
Jonny Stahl - Rehab & Performance

🌏 Berlin / online coaching
I do cool s**t to get ambitious people from Pain to Performance

02/09/2026

Assessment -> intervention-> progress.

30/08/2026

Solid week, Mentorship starting tomorrow, with plenty of exciting things in the pipeline for the next months!

29/08/2026

Crunches are great… if that’s all you want to train.

If you look at dynamic trunk/pelvic control requirements though, then you’ll see how the muscles play a huge role in stabilising and limiting excessive movement, while actually keeping enough movement variability, during tasks like running.

It really helps to understand where each muscle attaches and what their roles are, so that you can start preparing your body for the demands of sport.

Most people just do sit ups from their upper core and neck muscles and wonder they still have back pain after all these years.

Loading the hell out of your lower core, without going too hard too soon, can make a huge difference in how you stabilise your pelvis, use your hips effectively and potentially reduce things like hip, groin or back pain associated with sports/loading.

Understand what structures you’re loading and what their roles are - it makes all the difference.

28/08/2026

Constraints can make a massive difference in allowing us to get more out of the positions and the structures that we want to load through.

The thing is, if you’re going to change something, then you absolutely want to know why you’re doing it.

This shoulder constraint is something that I love because it forces more tension and stability through a long spine, meaning the spine becomes less floppy during explosive movements, which in turns allows more for more efficiency pushing through the feet and extending through the hips.

27/08/2026

When you understand movement, positions & load…

Then a whole new world opens up to you.

I’ve spent the last years refining my assessment protocol, aiming to gather the information I need more quickly.

All with the simple purpose of helping the individual in front of me.

When you understand what you’re seeing and what’s needed, both coaching & programming get a lot easier.

It’s not a one-size-fits-all approach; some people need one thing, many others need another thing.

The main is knowing what you’re actually seeing, what you’re actually aiming to do and testing whether or not your theories are actually working.

It’s a never ending process and that’s the beauty of it.

No one has ever fully mastered it - there’s always something new to learn everyday.

21/08/2026

Breaking down movement and functional biomechanics has been a real passion of mine for over 6 years now.

I remember just after I moved to Germany, I asked a mentor of mine, .osteo , about what I can do to better understand movement.

He simply told me to write down what I think that each bone and each joint are doing in each phase of the gait cycle.

This period (Covid, relocating to Germany, going self-employed) changed everything for me.

I’ve been refining my assessment ever since then - making it simpler where possible to get more clarity on what I’m seeing with each client, and how I can use that information to help them.

It can be simple. It can be basic.
Sometimes there’s complexity to it, but the more I think about it, simple is so often better in my opinion.

The biggest thing is knowing what to look at and how that translates to the both the client’s current situation AND their goals.

Always learning.
Always chipping away.
Always developing things.

That’s the fun in my opinion.

21/08/2026

This is a key difference between a good practitioner and an average one in my opinion.

If you under biomechanics, mechanical tension & the principles of loading structures, then you can be very specific about exactly what you want out of each exercise.

The difference here is night and day:

One is a hip exercise, the other is an ankle exercise.

Be extremely clear about your intentions and the outcomes will follow accordingly.

19/08/2026

This client has had pain for a while when abducting her shoulder under load.

I thought it was the site of biceps tendon re-attachment, but it wasn’t.

She’s been struggling with scapula control.

It’s not often I’ll tell a client to pull their shoulder blade back and more or less try to keep it there, but in this case it made a massive difference immediately, stopping the glenohumeral joint from tipping forward early, which was causing a pulling down the lateral part of the deltoid.

I’ve seen this multiple times during post-op shoulder rehab.

Getting the posterior shoulder muscles to stabilise the scapula and glenohumeral joint meant that she had a more natural excursion into abduction, with no pain all of a sudden.

18/08/2026

There’s more to core training than just crunches.

In fact, loads of people use their upper abdominals and neck muscles as a strategy because they’re actually deceptively weak through their lower core muscles.

Multiple core muscles attach onto the pelvis and their role is to stabilise the pelvis, during dynamic movement, in order to handle forces.

Load up your lower core - you’ll feel much better for it 👌

Adresse

Berlin
10785

Webseite

http://www.jonnystahl.com/

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