Anti-gravity protocol

Achilles tendinopathy rehab, Sydney

Keep running during Achilles rehabilitation โ€” without provoking flare-ups. Gradually reintroduce load in a controlled, supported environment that bridges rehab and return to running.

Load-sensitive ยท Tendon capacity ยท Controlled reload

Close-up of a patient walking inside the sealed anti-gravity treadmill chamber
Why the anti-gravity treadmill for Achilles?

Why the anti-gravity treadmill

Achilles tendinopathy is a load-sensitive condition. Too much load too soon provokes a flare-up. Too little load for too long fails to build the tissue's capacity and delays recovery. The challenge is threading the needle โ€” enough load to stimulate adaptation, not so much that symptoms worsen.

The anti-gravity treadmill solves this. By reducing body weight, the plantarflexion force through the Achilles during running is significantly reduced โ€” allowing running to be reintroduced at a load the tendon can tolerate, before progressing toward full body-weight running as capacity builds.

The goal isn't to avoid loading the Achilles โ€” it's to control how much load is applied and increase it progressively. The anti-gravity treadmill makes this precision possible in a way that nothing else does.

The protocol

The protocol

Four phases from supported jog introduction through to full ground running. Each phase progresses duration before reducing support percentage.

Approx. weeks 0โ€“3

Supported jog introduction

  • 40โ€“60% body-weight support
  • Jog intervals with walking breaks
  • Focus on smooth, relaxed running rhythm
  • Monitor push-off pain and next-day stiffness
Approx. weeks 3โ€“6

Progressive reload

  • 20โ€“40% body-weight support
  • Progress toward continuous jogging
  • Increase duration before increasing speed
  • Avoid early incline running
Approx. weeks 5โ€“8

Elastic load reintroduction

  • 10โ€“30% body-weight support
  • Controlled cadence increases
  • Prepare for return to normal running loads
  • Monitor morning stiffness as key indicator
Weeks 8+

Transition to ground running

  • Gradual return to outdoor running
  • Supported sessions may continue to manage weekly load
  • Progressive increase in ground running volume
  • Continue heel raise strength program alongside
Clinical decision rules

Progression & red flags

These rules guide progression through the protocol and flag when to regress.

When to progress

  • Increase duration before speed
  • Push-off pain stable or improving
  • Morning stiffness stable or improving
  • Running rhythm remains smooth

When to regress

  • Increased morning stiffness
  • Local tendon swelling develops
  • Pain during push-off or acceleration
  • Next-day soreness worsens
Broader program

Before running begins

  • Walking tolerance improved
  • Heel raise strength progressing
  • Morning stiffness stable or improving
FAQ

Achilles Tendinopathy & anti-gravity running

Should I rest completely from running with Achilles tendinopathy?
Complete rest is rarely the answer for Achilles tendinopathy. Tendon tissue requires load to adapt and heal โ€” the challenge is managing how much. The anti-gravity treadmill allows controlled load introduction that avoids the flare-up cycle while building tendon capacity progressively.
How does this work alongside my heel raise program?
The anti-gravity treadmill and a heel raise strengthening program complement each other well. The heel raise program builds the tendon's capacity for loading; the anti-gravity treadmill allows running-specific load to be reintroduced progressively. Both continue concurrently as part of your overall Achilles rehab program.
Do I need a referral?
No referral needed. Book a free call and we'll assess your situation before your first appointment.

Ready to start running again?

Book a free call. We'll tell you whether you're ready to start anti-gravity running and what the protocol looks like for your achilles tendinopathy stage.

No referral needed ยท Five Dock, Inner West Sydney ยท Health fund rebates available