John Kahl PT DPT SCS CSCS

•Helping active individuals with ACL injuries & knee pain recover to build strong knees for life

•Online Knee pain & ACL Recovery specialist

✅ Figure out the bottleneck in your recovery
✅ Develop a game plan to fix it for good
✅ Return to a pain free active lifestyle

ACLRx Founder

Clinicians - ACL From Z to Z Mentorship & online ACL mastery course (CEUs)


John Kahl PT DPT SCS CSCS

More motion.✅️
Less stiffness.✅️
Better control.✅️

Same knee.
100% online.

No hands-on work — just the right plan, applied the right way.

Now on his 3rd knee surgery recovery, he didn't want to settle for basic rehab anymore.

He chose specialized help ✅️

This is where a lot of people get stuck👇

working hard, but missing what actually drives progress.

I recently made a video breaking down how online ACL & knee rehab actually works.

If you’ve ever wondered whether this approach could work for you,

👉Comment "online" and I'll send you the video

2 weeks ago (edited) | [YT] | 8

John Kahl PT DPT SCS CSCS

ACL graft strength👇

Is actually the strongest on the operating table 🤯

And then it goes through a healing process where the harvested tendon remodels into tissue that resembles the original ACL.

Throughout the recovery process, the graft has varying degrees of strength, with it's weakest being around 6-8 weeks post-op.

As we start approaching 1 year post-surgery, the graft strength approaches the native ACL strength, with remodeling lasting for quite some time afterwards.

Biological graft healing is 1 important factor.

But the quality of your rehab is equally, but likely MORE important. A healed graft means nothing if your knee is under-prepared for what you're asking it to do.

So if you want to learn about each graft type and what implications they have on your recovery, I have a free video answering these questions.

👉Comment “graft” and I’ll send you the video

2 weeks ago (edited) | [YT] | 3

John Kahl PT DPT SCS CSCS

Most ACL & knee patients are doing this backwards.

They're rushing to ditch their crutches because crutches feel like the more obvious "thing slowing me down."

Meanwhile they're holding onto the brace like it's the magic piece keeping their knee safe.

It's the opposite.

The brace is mostly there to protect meniscal repairs, limit motion, and remind you (and the people around you) that your knee is healing.

It doesn't give you the stability everyone thinks it does.

The crutches? Those are doing the actual heavy lifting — protecting your knee, preventing the limp that becomes a long-term problem, and giving your quad the time it needs to wake back up.

Get the order wrong and you spend months trying to undo bad walking patterns that should've never formed in the first place.

The first 3 months after ACL or knee surgery are everything. Hit the right milestones in the right order and you set yourself up for a recovery that actually feels like progress — not a guessing game.

Want the full breakdown?

👇 Comment "MILESTONES" below and I'll send you the full video walking you through exactly what to hit in months 1, 2, and 3 after ACL or knee surgery — so you can stop guessing and start crushing this thing.

2 weeks ago | [YT] | 2

John Kahl PT DPT SCS CSCS

Are you and/or your rehab team putting the cart before the horse? 🐴

It seems obvious on paper, yet I speak with so many people who were told to try jumping and running despite missing foundational milestones.

And when their knee hurts or swells, they chalk it up to “being a normal part of the process.”

🚨 Here’s the problem: Your knee isn’t “failing” you. it’s being asked to do a job it’s not prepared for.

If you’re dealing with:
• Limited knee extension
• Quad strength that was never measured
• Persistent swelling
• Pain with basic movements

but you’ve already been told to run or jump…

👉 You’re skipping steps.

And when you skip steps, your body will always let you know.

Swelling, pain, and stiffness aren’t just “normal” — they’re feedback.

Build the foundation first, and everything above it becomes easier, safer, and actually effective.

Or spend months trying things, taking a step back, and repeating this over and over

👉Book your call in bio if you want a clear research-backed plan to comeback stronger

3 weeks ago | [YT] | 0

John Kahl PT DPT SCS CSCS

Let’s clear something up first👇

There are some incredible local sports PTs out there who are more than capable of guiding you through a high-level ACL recovery.

But that’s not the norm for many.

The reality is, I speak to people every single week who are still dealing with knee pain, limitations, and uncertainty months and even years after their ACL or knee injury/surgery.

And the common theme👇
They don’t have a clear plan, there's no testing to guide their rehab, and it becomes a guessing game.

If your provider doesn’t truly understand the intricacies of this recovery, it can lead to generic programming, missed progressions, and lingering issues that shouldn’t still be there.

ACL recovery is often portrayed as “take it easy early, and then over time you’ll naturally get back to normal.”

That’s not how this works. Getting back to running, cutting, sports, hiking—whatever you love—requires a structured, progressive plan with clear direction every step of the way.

Without that, you’re just guessing. And no, you can't out-work a poor plan.

If you feel lost right now, or like you’re just winging it, I can help.

👉Book your free call in bio and let's rewrite your comeback

1 month ago | [YT] | 2

John Kahl PT DPT SCS CSCS

Strong quads don't happen by accident👇


https://youtu.be/Cr2ii76m8kQ?si=dCLCm...

1 month ago | [YT] | 1

John Kahl PT DPT SCS CSCS

Waiting, thinking, researching, comparing, “just giving it more time”…

Sometimes the biggest barrier isn’t your knee.
It’s the stories we tell ourselves.

Progress starts the moment you decide.

👉Book your call in bio if you want a data-driven plan to build the strongest knees of your life

1 month ago | [YT] | 4

John Kahl PT DPT SCS CSCS

Online client win💪

1 month ago | [YT] | 0

John Kahl PT DPT SCS CSCS

More motion.✅️
Less stiffness.✅️
Better control.✅️

Same knee.
100% online.

No hands-on work — just the right plan, applied the right way.

This is where a lot of people get stuck👇

working hard, but missing what actually drives progress.

I recently made a video breaking down how online ACL & knee rehab actually works.

If you’ve ever wondered whether this approach could work for you,

👉Comment "online" and I'll send you the video

1 month ago | [YT] | 1

John Kahl PT DPT SCS CSCS

The first 2-3 months after ACL and knee surgery set the stage for EVERYTHING else to come.

The "boring" stuff
✅️Full range of motion
✅️Quality quad activation
✅️Normal walking mechanics
✅️Foundational movement patterns

This is often seen as the "easy, basic" stage- yet why are there so many people who are 3+ months or years out missing these foundational milestones?

Most ACL recoveries fail in the first 3 months...don't let that be you

👉Comment "milestones" and I'll send you my video covering this stage in detail

1 month ago | [YT] | 5