Do you ever feel like your instructor is a broken record, but only for one side of your body?

“Left leg back.” “Stop collapsing your right hip.” “Heels down on the left.” You try, you strain, and you focus all your energy on that one rebellious leg, but moments later, it has crept right back to its old, familiar (and incorrect) spot.

If this sounds familiar, you’re not alone—and more importantly, it might not be a simple matter of training or lack of effort. Often, the root cause is a subtle, deeply ingrained physical imbalance known as rider asymmetry. The good news? You don’t have to fight this battle alone. A thoughtfully designed saddle can become your greatest ally in finding balance.

The Hidden Truth: Why Most Riders Aren’t Perfectly Symmetrical

First, let’s get one thing straight: perfect symmetry is a myth. Just as you have a dominant hand, you have a dominant side of your body. Years of carrying a bag on one shoulder, crossing your legs the same way, or recovering from an old injury all contribute to making us beautifully, naturally crooked.

And this isn’t just a feeling—it’s backed by data. A study in the Journal of Equine Veterinary Science found that over 70% of riders exhibit some form of pelvic asymmetry. This means the majority of us get in the saddle with a pre-existing imbalance, where one hip might be slightly higher, tighter, or more forward than the other. When we try to force this asymmetrical body into a perfectly symmetrical saddle, it’s like fitting a square peg into a round hole. Something has to give—and it’s usually our position, our comfort, and our horse’s way of going.

How Asymmetry Shows Up in the Saddle

An uneven body doesn’t always feel dramatic. The signs are often subtle habits and frustrations that we write off as “things I need to work on.”

Common symptoms of rider asymmetry include:

• The Wandering Leg: One leg constantly swings forward or back, refusing to stay quietly underneath you.
• The Collapsing Hip: You feel yourself sinking or weighting one seat bone more heavily, often causing the saddle to shift.
• A Twisted Feeling: Your torso feels slightly rotated, making it harder to keep your shoulders parallel with your horse’s.
• One-Sided Resistance: You find it much easier to pick up one canter lead or perform lateral work in one direction.

This imbalance doesn’t just affect your position; it can also be a key factor in understanding and solving common saddle fit problems. When a rider’s weight isn’t distributed evenly, it creates pressure points and discomfort for the horse, leading to a host of other issues.

Beyond “Trying Harder”: The Role of Saddle Design

For decades, the standard answer to asymmetry was to “ride through it.” But what if the equipment itself could adapt to the rider, providing support where it’s needed most? This is where modern, rider-focused saddle design changes the conversation. Instead of demanding perfection from an imperfect human body, it asks: how can we create a more harmonious connection?

Introducing Customizable Thigh Blocks

Think of thigh blocks as the supportive frame for your position. They’re the padded structures on the front of the saddle flap that your thigh rests against. Traditionally, these are fixed in one position, but customizable or adjustable blocks offer a tailored solution, recognizing that no two riders—or even two sides of the same rider—are identical.

For many riders, especially women, the angle and placement of these blocks are crucial for achieving a balanced seat. When a block is in the wrong place, it can push the leg out of position or lock the hip. When it’s in the right place, it provides security and stability without force.

Correcting Imbalance: How Differential Support Works

This is where the magic happens. By using different blocks on each side or adjusting their position independently, a saddle fitter can address a rider’s unique asymmetry through what’s known as differential support.

Leveling the Pelvis with Asymmetrical Support

Imagine a table with one leg that’s slightly too short. The entire tabletop tilts. You wouldn’t saw down the other three legs to match; you’d put a small shim under the short one to level the surface.

Asymmetrical thigh block support works on the same principle. If a rider tends to collapse their right hip, for example, a slightly larger or more angled block on that side can provide the gentle support needed to keep the pelvis level. It doesn’t force the rider into position; it simply fills the space, making the balanced position the easiest and most comfortable one to maintain.

Stabilizing the Uneven Leg

Now, let’s go back to that wandering leg. A correctly positioned block provides a secure, gentle boundary, giving your body a constant, subtle reminder of where your leg should be.

Research in biomechanics shows that consistent proprioceptive feedback—the body’s awareness of its position in space—is key to retraining muscle memory. A well-placed thigh block provides exactly this kind of feedback. It helps your brain and muscles re-learn the correct alignment without you having to constantly tense up to hold the leg in place. This frees up your aids to be more subtle, clear, and effective.

At Iberosattel, for example, we’ve seen firsthand how a rider’s entire position can transform when their saddle is adapted to their unique anatomy. This principle led to innovations like our Amazona Solution, developed specifically to address the anatomical needs of female riders. This solution often involves tailoring the block and flap design to support the pelvis and allow the leg to fall naturally.

Frequently Asked Questions About Rider Asymmetry and Saddle Support

Will using supportive blocks make my leg weak?

This is a common concern, but it’s a misconception. The goal isn’t to brace or lock you into place. The right support actually allows your muscles to relax and function correctly. Instead of being a crutch, a well-designed block is a training tool that teaches your body the feeling of a correct, stable position.

Can I use different blocks on each side of my saddle?

Absolutely. This is the core principle of using a saddle to address asymmetry. Providing different levels of support on each side is often the key to helping a rider find their center and balance.

How do I know what kind of block I need?

This is where expert guidance is invaluable. The ideal block size, shape, and placement depend on your leg length, hip angle, riding discipline, and the specific asymmetry you’re experiencing. A knowledgeable saddle fitter can assess your position and help you find the combination that provides support without restriction.

Is rider crookedness always the rider’s fault?

Not at all. Horses have their own asymmetries, too! A rider’s crookedness can sometimes be a compensation for the horse’s natural imbalance, and vice-versa. It’s a dynamic partnership, and addressing asymmetry often means looking at the horse, rider, and saddle as a complete system.

Your Path to a More Balanced Ride

Recognizing that you are asymmetrical isn’t a sign of failure; it’s the first step toward finding a more harmonious and effective position. The journey begins with awareness. The next time you ride, simply notice: Which seat bone feels heavier? Which leg wants to wander? In which direction is it easier to bend?

This self-awareness is powerful, shifting the goal from forcing a “perfect” position to finding a supportive, balanced one. But understanding your own body is just one part of the equation. Exploring how saddle comfort impacts your horse is the crucial next step in creating true harmony.

A balanced ride isn’t about achieving rigid symmetry; it’s about discovering a dynamic harmony between you, your horse, and your equipment. It begins with understanding that your saddle should support your unique journey, not create another barrier to overcome.