08/07/2025
Superficial vs Deep Muscles — Why the Layers Matter
Every horse has two main layers of muscle superficial and deep and both serve very different purposes. The superficial muscles are the large, visible ones just under the skin. These are the “movers” responsible for powerful actions like extending the legs, lifting the back, and driving impulsion. They’re the muscles we often see rippling when a horse gallops or turns sharply.
But beneath that outer layer lies a far more subtle system: the deep muscles. These are the “stabilizers.” They don’t create big, flashy movement instead, they support balance, coordination, joint alignment, and postural control. Deep muscles are essential for things like spinal stability, core strength, and precise limb placement.
The deep layer is often underdeveloped or forgotten in horses that are overworked, under-conditioned, or incorrectly trained. Building both layers in balance is what allows for sustainable movement, healthy biomechanics, and long-term soundness.
Understanding what’s happening beneath the surface can help us train better, treat smarter, and ride with more awareness. It’s not just about power it’s about control.
