03/11/2026
Inside the Equine Athlete
That big muscle on the side of your horse’s face is called the masseter. It’s one of the main chewing muscles, but it can also give bodyworkers clues about tension in the rest of the horse’s body.
Sometimes when I check the masseter, I find it’s tight, uneven, or overworked. When that happens, horses may show things like:
- Trouble relaxing in the bridle
- Bracing through the neck
- Short or choppy strides in the front end
- Stiffness through the back
- Difficulty bending one direction
- Trouble stepping under with the hind end
The reason?
When the jaw is tight, it can limit movement through the poll and neck, which then affects how the shoulders, back, and hind end move.
The good news:
When tension in the jaw and surrounding muscles is released, horses often feel more comfortable using the rest of their body.
Owners may notice:
✨ Softer contact
✨ Better bend
✨ Freer shoulder movement
✨ A more relaxed topline
Sometimes what looks like a training issue is actually your horse trying to move around discomfort.
And sometimes the first clue…
is simply feeling your horses cheeks!