Every corner, every volte and every lateral movement begins with the same thing: a horse that flexes and bends correctly. The two words are often mentioned in the same breath, but they mean different things — and understanding that difference is exactly what makes turns better. This guide explains both concepts, along with the aids involved and the mistakes you want to avoid.
Flexion: The Smallest Ask
Flexion is a slight lateral bend at the poll — the topmost joint, directly behind the ears. It's no more than a few degrees: riding with correct flexion, you as the rider just see the inside brow ridge or nostril, and nothing more. The neck stays straight in front of you, the ears stay level.
Flexion is the opening move in any conversation about direction. It softens the horse slightly on the inside and prepares the bend. It's also a test: a horse that flexes smoothly to both sides without losing rhythm or contact is genuinely in front of the aids.
Bend: The Whole Body
Bend — longitudinal bend, in full — is the curve running through the entire spine, from poll to tail, around the rider's inside leg. Where flexion involves only the poll, bend engages the whole body: the rib cage shifts slightly outward, the inside hind leg steps further under, and the neck follows the line of the rest.
The rule of thumb: the degree of bend should match the line you're riding. On a ten-meter volte, the horse bends more than on a twenty-meter volte; on a straight line, the body is straight, at most lightly flexed. Bend that doesn't match the line — more neck brought in than the volte calls for — isn't better bend, it's a disruption of balance.
The Aids: Inside Leg, Outside Rein
The classic scheme of aids for flexion and bend looks like this:
- Inside leg at the girth — the pivot the horse bends around, and the engine that activates the inside hind leg.
- Inside rein asks for the flexion — briefly and lightly, then yields again immediately. The inside rein is the request, not something to hold onto.
- Outside rein limits — it governs how far the neck is allowed to come in, catches the outside shoulder, and thereby determines the size of the turn.
- Outside leg, slightly back — guards the hindquarters, so they follow the line and don't swing outward.
The outside rein is the least intuitive and most important aid here. Riders looking to improve a turn almost always reach for more inside rein — while nearly every turning mistake actually has to do with the outside. Hence the old saying that you ride a horse from inside leg to outside rein.
Where It Goes Wrong
| Mistake | What you see | The cause |
|---|---|---|
| Too much neck to the inside | The neck bends inward, but the horse drifts outward over the outside shoulder | Too much inside rein, no limiting outside rein: the body doesn't bend along with the neck |
| Tilting at the poll | The ears are no longer level; the head hangs crooked | Flexion is asked for with force instead of lightly; tension or a dental problem is often behind it too |
| Leaning on the inside rein | The horse leans on the inside and falls into the volte | The inside rein doesn't yield; the inside leg is missing as a pivot |
| Rider leans inward | The horse falls into the turn over the inside shoulder instead | The rider's weight is steering along with it; correcting the seat solves more than rein aids do |
All these mistakes share the same core problem: the turn is made with the hand instead of leg and seat, and the horse's outside gets lost.
Exercises That Improve It
- Voltes of different sizes. Ride voltes of twenty, fifteen and ten meters and pay attention to whether the bend grows with the line. Dressage Arena Letters and Figures Explained gives you fixed measurements to check against.
- Serpentines and changing rein. Every change of direction calls for re-flexing: briefly straightening, then the new flexion and bend. The more fluidly that goes, the better the aids are coming through.
- Changing flexion on the straight line. On the long side, ask for a few strides of flexion to the inside, then to the outside, without the horse changing line or rhythm. This is a bare test of the flexion itself, independent of any turn.
- The step toward lateral movements. Shoulder-in is, in essence, a ridden bend on a straight line. Anyone who has mastered flexion and bend on the volte has already done the groundwork for lateral movements.
In Short
- Flexion = a slight bend at the poll; you just see the inside edge of the eye. Bend = the curve through the whole body, matching the line.
- The aids: inside leg as the pivot, inside rein asks and yields, outside rein limits, outside leg guards the hindquarters.
- The outside rein is the most important and most forgotten aid — nearly every turning mistake sits on the outside.
- More neck to the inside isn't better bend; the degree of bend should match the size of the line.
- Flexion and bend on the volte is the direct groundwork for shoulder-in and the other lateral movements.
See also: Lateral Movements: Shoulder-In and Travers · On the Bit: What It Really Means to Ride With Contact · Dressage Arena Letters and Figures Explained · Glossary: training scale · Level: Competing More Seriously