Knee drop Shoulder with pole Depression Row Ball squeeze
$89
This is the most important training you'll ever do to rehab injuries, protect yourself from injury, and keep training for the long haul. Get out of pain and back to enjoying life!

SEE REHAB TESTIMONIALS >>

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COREX12 Foundations

“12 Exercises to Fix Your Entire Body”
We believe most injuries are caused by 12 common muscle weaknesses & imbalances that are almost always neglected by the top PT’s and trainers. Fix those, and you fix the root cause of the injury – not just the symptoms.

The 12 Foundation Exercises Target:

  • Legs & Hips (5 exercises)
  • Shoulders (4 exercises)
  • Core (3 exercises)
  • Bonus: Wrist, Neck, and Foot exercises
Four images of Zach working with clients
Zach working with two clients

Feel it to Heal it – Method

The key to our system and testing is eliminating compensations during each exercise so that you feel only the target muscle weakness working. If you mostly feel other muscles taking over, the true weakness won’t strengthen – and the injury won’t heal. Learn our Method>>

infraspinatus activation
The foundations are designed to:

  • Fully rehab recurring injuries

  • Bullet proof & protect you from potential injury

  • Realign your body & improve posture

  • Maximize flexibility potential

  • Prepare you for future training

Web-based App (Not in App Store)

The rehab program is accessed on our website. It works just like an app on your phone, or you can use it on your computer or tablet.

App on Phone
App on Laptop

Important Program Details

3-Phase Rehab System

Our COREX12 rehab approach is built on a progressive 3-phase system designed to move clients from injury rehab into general fitness & lifting. READ MORE >>

Testing & Injury Modifications

The programs can be customized for your injury using our testing and specific injury guide. READ MORE >>

Purchase Rehab App

$89
Includes
  • Rehab APP on website (Not in APP store)
  • COREX12 - 3 Phase Rehab System
  • 6 months of access (NO recurring payments)
  • Access on Phone, Tablet, or Desktop
  • Testing Guide to Modify Program Based on Injury
SEE EQUIPMENT NEEDED >>
SEE APP DEMO & EXERCISES >>
SEE EQUIPMENT NEEDED >>     SEE APP DEMO & EXERCISES >>

Privates with Zach
Virtual or In-Person

Privates with Zach – Virtual or In-Person

Zach from CoreXcell

Private Session Packages

2 session package - $350
6 session package - $850
Includes: 1 year of Rehab App
Learn More >>
Core flat back exercise Fuller twist exercise
Core flat back exercise
Zach from CoreXcell

Private Session Packages

2 session package - $350
6 session package - $850
Includes: 1 year of Rehab App
Learn More >>
Fuller twist exercise

Real Results from Real People

FAQ

No, it’s not in the App Store. The program is purchased on our website. The Rehab App is designed for your phone, and it also works great on a laptop or desktop – so you can view exercises on a larger screen for easier learning.

Most traditional programs have clients perform exercises without realizing they’re reinforcing compensations — not the true weak link — so the root cause never gets fixed. Many assume that training a certain plane or range of motion will automatically target the right muscle. That’s where most systems fail.

Our success comes from:

  • Precise muscle activation: If you can’t locate and feel the exact weak muscle working, you won’t fix the injury.
  • Built-in testing: Every exercise includes testing to confirm you’re activating the true weakness (not compensations).
  • Personalized start/end points: Multi-level positions help you start at the right range of motion for your body, so you feel the correct target muscle during all 12 exercises.

Learn about the Feel It to Heal It Method>>

This system is technical and requires focus — it’s not for everyone. You’ll need to place yourself in the correct positions and build a strong mind–muscle connection so compensations don’t take over. If you’re up for the challenge, these exercises can be life-changing and get you out of pain.

Using a mirror:
Clients who get the best results use a mirror and a laptop. Watch the exercise technique in the app and use the mirror (or your laptop camera) to match positioning in real time.

Privates with Zach:
The fastest path to success is private sessions with Zach — they remove the guesswork.

  • Shoulders: 2x per week
  • Legs & Hips: 2x per week
  • Volume: 3–4 sets of 15–20 reps per exercise
  • Session length: 45–60 minutes

This may not seem like much, but when you’re training the true weakness (not compensations), your body needs adequate recovery to adapt. Doing too much volume too soon often sets you back and increases irritation.

Do I need to do all 12 exercises?

We recommend completing all 12 exercises to protect yourself from future injuries in both your upper and lower body. The entire body is interconnected — fixing an upper-body issue often benefits from lower-body stability, and fixing a lower-body issue benefits from upper-body balance.

Training for a specific injury:

If you just want to focus on the shoulder exercises to fix your shoulder (and skip lower body), that’s fine. Or if you only want the hip and leg program for a lower-body injury (and skip upper body), that works as well.

For the best long-term results, we encourage running the full system when possible.

The programs are designed to be customized based on your specific injury using our built-in testing and injury guide.

Specific Injury Guide

We include a detailed injury guide inside the app. Simply search for your condition, and we’ll show you exactly how to modify the program — including which exercises to emphasize, which to modify or skip temporarily, and how to progress safely.

Muscle Testing Protocol

Every exercise includes a simple muscle-testing video to ensure you’re activating the correct muscle. You’ll learn how to:

  • Check if the target muscle is firing correctly
  • Modify the exercise if you feel compensations or pain
  • Know when you’re ready to progress or return to training/sport

The important thing to understand is that we always use the same 12 foundational exercises in our system. The customization comes from teaching you the exact range of motion where you feel the target muscle the most — and how to adjust that range as you improve.

Testing at Every Phase

Each of the three phases includes specific testing guidelines to help you determine when you’re ready to move forward and get fully out of pain.

2-Month Pain-Relief Marker:
If you’re consistently hitting the target weakness (with no compensations), you should notice significant pain relief by around 2 months—sleep and daily activities typically feel better with much less irritation.

Note: If you don’t feel relief after 2 months, book privates with Zach — he’ll get you on track.

Long-Term Fix – Back to Training (estimates include the initial 2 months):

  1. Leg, Hip, Foot injuries: 3–5 months
  2. Low Back / SI Joint Pain: 3–5 months
  3. Low Back Herniations: 6–9 months
  4. Shoulder, Elbow, Wrist Pain: 3–5 months total
  5. Shoulder Tears: 6–9 months total

Yes. About 80% of your app purchase is credited toward Zach’s 2- or 6-session private packages.
Email Zach to schedule>>