22/07/2025
Underrun heels
What in the barefoot trimming world is often professed as underrun heels is, ironically, an optimal heel lengthâcut back to its natural length. The irony is that the trimming methods based on Negative Palmar Angle (NPA) theory are the ones that create the underrun heels.
What is an underrun heel?
When you closely examine the angle of growth at the toe and compare it to the heel growth angle, it will become apparent that both are growing at different angles. Toe angles are always steeper than the heel angle of growth.
The best visual presented to date can be found in The Natural Trim: Principles and Practice, and it shows the heel trajectory of growth pushes it forward the longer it grows. This creates an unnatural stance and leads to contraction at the heels that more often than not leaves the frog âhanging.â
The natural trim method is often accused of creating NPA, which, according to the proponents of this theory, causes discomfort and lameness.
Negative palmar angles did not kill this horse.
Positive palmar angles did not save this horse.
Lamellar attachment does not transfer any weight onto the hoof wall.
The bone column does not carry any weight.
The truth is that...
P3 is buoyantly suspended inside the hoof capsule by the cardiovascular system that acts like a waterbed. The supercorium sustains P3 through its sophisticated hydraulic network.
The skeleton serves only approximately 10% of the body weight, and its primary role is to provide structure for the soft tissue.
The descending weight is equally distributed by the soft tissues that contrapose the body weight.
If the above claims were not true, how is it then that our own heel bulbs remain suspended within our foot? Why is our skeleton not pushing it right through the skin?
This horse died a slow and painful death that had nothing to do with the way the hoof was trimmed, but everything to do with the way it was fed.
It is lack of awareness on the owner's part and misguided veterinary practice that sees the quiet death of countless horses euthanized before their time.
There is only ONE cause of laminitis, not six or more, and it can be traced to the unnatural diet.
We live in a strange world, consumed by mind-made interpretations of reality. Because people severed connection to truth, they are trapped by darkness.
My diet recommendation leans on Jaime's research and observations of wild, free-roaming horses living in the U.S. Great Basin. His insights on a reasonably natural diet have been consolidated into the AANHCP Recommended Diet. His laminitis consultations have been saving lives for decades. Safe, naturally grown hay is key, along with carefully chosen products that make up the daily feed.
If this stirred something in you, feel free to share your story in the comments.