Pain interrupts your rhythm
Running, padel, hiking or the gym suddenly feels less straightforward.
THE HDX KNEE SYSTEM
Understand your knee.
Train with a plan.
Keep moving.
A complete six-week system for active people who want to rebuild strength, manage load intelligently and return to sport with more confidence.
5files
18sessions
29exercises
$49.95
complete system
Just $2.77 per session
Digital English-language guides · 3× per week · At home
From the team behind KneeMax · Rated 4.8/5 by 210+ reviews
2026 EDITION
SOUND FAMILIAR?
You want to keep moving.
But your knee sets the pace.
The advice conflicts
Rest, push through, tape or strengthen. It is hard to know what fits your situation.
You lack a clear next step
You want to know when to progress, repeat a week or take a step back.
WATCH THE EXPLANATION
Why a clear plan matters.
ONE SYSTEM. FIVE TOOLS.
Everything you need to rebuild intelligently.
Not a collection of random tips. Every part answers a different question, from understanding what is happening to returning to sport safely.
01 · 25 PAGES
The Knee Blueprint
Understand knee pain, load and the rules that keep knees healthy.
02 · 25 PAGES
The 6-Week Knee Program
A baseline test, 18 guided sessions and a 29-exercise library.
03 · 9 PAGES
Return-to-Run Guide
Seven readiness tests and a 10-stage walk-run ladder.
04 · 7 TABS
Knee Progress Tracker
Log pain and training, see trends and know when to progress.
05 · 9 PHONE-SIZED PAGES
Knee Pocket Guide
The key rules, always within reach on your phone.
NO GUESSWORK
A plan that adapts to your knee.
1Test your starting pointEight baseline tests determine whether you begin in week 1, 2 or 3.
2Train three times a weekSessions of 25 to 40 minutes at home with a chair, wall and step.
3Let your response decideMove on, repeat the week or step back using clear decision rules.
4Build back to your sportUse the running ladder or a return plan for your activity.
SIX WEEKS. ONE LOGICAL PROGRESSION.
From calming and activating to strength, landing and direction.
01Calm & activate
02Build control
03Build strength
04Load & land
05Power & direction
06Return & own it
RETURN TO YOUR SPORT
Know when you are ready. And what comes next.
The Return-to-Run Guide starts with seven green-light tests and builds from short walk-run intervals to 30 minutes of continuous running.
RunningPadel & tennisFootballHikingHYROX & gymCyclingSkiing
+10% The guide uses the 10% longest-run rule, not a generic weekly mileage rule.
PROGRESS YOU CAN SEE
Your tracker tells you when to progress.
Seven tabs bring your baseline tests, daily load, pain response, weekly decision and running build-up together.
- Automatic Green, Amber or Red status
- Charts for pain and completed sessions
- Safe calculation for your next long run
- All 18 sessions with tick-offs
BUILT ON RESEARCH
Facts earn trust.
The system turns current science into simple rules you can use in real life.
Strength as the foundation
Hip plus knee strengthening is the top recommendation of the international patellofemoral pain consensus.
Collins et al., BJSM 2018 · Nascimento et al., JOSPT 2018Your longest run matters
Across 5,205 runners, one run more than 10% longer than the longest run in the previous 30 days raised overuse injury risk by 52 to 128%.
Frandsen et al., BJSM 2025The next morning decides
Pain up to 5 out of 10 during rehab can be acceptable if it has settled by the next morning.
Silbernagel et al., AJSM 2007
BUILT BY HUMAN DYNAMIX
A professional system, backed by clinical expertise.
Human Dynamix turns clinical experience and movement science into clear programs you can follow at home. Sam Sankarey brings more than ten years of physiotherapy, five years of movement-science study and his own experience as a marathon and ultra runner to the method.
“Do not just push through pain. Do not rest forever. Understand, rebuild and keep moving.”
10+years physiotherapy5years movement science
WHERE KNEEMAX FITS
Support alongside the work. Never instead of it.
KneeMax can provide compression, warmth and a supported feeling during the program, after training, on long walks or on flare-up days. It does not replace exercise, diagnosis or medical treatment.
The complete system is included free with KneeMaxDuring sessionsRecommended
After training2–4 hours
Running and sportYour choice
While sleepingNot needed
READY FOR A CLEAR PLAN?
Six weeks from now, you can still be searching. Or know your next step.
$49.95
5 files · about 68 pages · interactive tracker
FAQ
Good to know.
Who is the program for?+
For active adults who want to understand their knee, build strength and capacity or return responsibly to running and other sports.
Do I need a gym or equipment?+
No. You train at home with a chair, wall and step. A backpack and resistance band are optional.
How much time does it take?+
Three sessions per week of 25 to 40 minutes. Every session uses the same six-minute warm-up.
Where do I start?+
You first complete eight baseline tests. The result determines whether you start in week 1, 2 or 3. You retest in weeks 3 and 6.
Is this only for runners?+
No. The system also covers returning to padel, tennis, football, rugby, hockey, hiking, HYROX, gym, cycling and skiing.
Do I need KneeMax to follow the program?+
No. KneeMax is supportive and can be used alongside the program, but it does not replace the exercises.
Is this medical advice?+
No. The program is educational and does not replace diagnosis or medical care. It includes a safety page with red flags that tell you when to see a doctor.
Educational material, not medical advice. Consult a healthcare professional for persistent, severe or injury-related symptoms.
$49.95The HDX Knee System
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