Gray Institute - Store -




The Achilles Hip

We each have seen nice looking or powerful calf muscles. But, regardless of how they look, do we know what they really do? This edition of the Functional Video Digest Series is called the Calf - The Achilles Hip. The muscles, tendons, and joints in this area are so interconnected, so co-dependent, that Gary Gray won’t even discuss them in isolation from one another. Gary explains the true function of the peroneus longus and the gastrocnemius, and describes how the other numerous muscles in the lower leg have a relationship with the foot. Gary also takes functional analysis even further to explain how the calf plays a very significant role in controlling the trunk and thoracic spine. For, the point of functional analysis, rehabilitation, and training is to understand movement as it actually occurs in real life. So, for Gary Gray, if you want to treat or prevent injuries to the Achilles tendon, you better take a close look at the hip. 

Download Outline Booklet PDF

Choose a Membership Level

30 Day Trial


Access all of the features, benefits, and content available at our Preferred Plus subscription FREE for 30 days! No credit card or commitment needed.


  • Access to select Resource Channels
    • 3DMAPS
    • AFS Strategies
    • CAFS
    • Nomenclature
  • Access to a Rotating Selection of resources and content on a weekly basis
  • Access to the Remote Trainer and all 6,000+ exercises
    • Ability to add/share workouts with up to 3 clients


  • Unlimited access to full Content Library
    • 3DMAPS, 3D Matrix, AFS Strategies, Articles, Biomechanics, CAFS, Functional Muscle Function, Functional Video Digest, Nomenclature, Science Behind AFS, True Stretch, Truths Worth Doing, Fast Function, Yoga, Basketball, Golf, Equipment
  • Full access to Remote Trainer
    • Up to 25 clients
    • Print workouts/programs
    • Upload your own videos

Preferred Plus

  • Unlimited Access to everything in Preferred Plus
    • Up to 250 clients in Remote Trainer
    • Private/Custom brand your Remote Trainer
    • Access to Remote Diagnostic (Virtual Trainer) Coming Soon