My young horse has a very hard trot to ride what can I do?

A young horse with a hard difficult trot is one of the most common challenges in starting young horses under saddle, and it is a challenge that generates significant frustration because the trot is the gait in which most foundational training work happens — transitions, lateral work, rhythm development, contact — and a trot that is physically punishing for the rider makes all of that work harder, less precise, and less enjoyable than it needs to be. The hard trot in a young horse is almost always a combination of physical immaturity, natural movement characteristics, and tension rather than a permanent limitation on what the horse can offer. Physical immaturity is the most legitimate and most frequently overlooked cause of a difficult young horse trot. A horse that is two or three years old has not yet developed the topline musculature, the hindquarter strength, or the balance under a rider that allows him to carry himself in a way that softens and cushions the trot's impact. Young horses are naturally on the forehand — their balance is not yet organized to distribute weight appropriately between front and hind — and a horse on the forehand transmits the full concussive force of each trotting stride upward through a hollow tight back rather than absorbing and softening it through an engaged swinging topline. Tension through the back is the single most impactful cause of trot difficulty and the one most amenable to immediate improvement through correct riding and management approaches. A tense horse cannot swing his back, and a horse that cannot swing his back transmits every footfall directly and without cushion to the rider's seat — producing the choppy stiff jarring trot that is so difficult to sit. The tension may come from the horse's anxiety about carrying a rider, from pain somewhere in the back or hindquarters that the trot movement exacerbates, from a training environment that is too demanding for the horse's current stage, or from the rider's own tension communicating through the seat and inadvertently producing the back tightness that creates the difficult trot. The single most effective practical intervention for the difficult young horse trot is extended walking on a long rein before and during trot work — much more walking warmup than most riders allocate to young horses, and much more return-to-walk during the session whenever the trot becomes difficult. Walking on a long or loose rein allows the horse's topline to begin swinging freely, his back muscles to warm and loosen, and his mind to relax into the work before any contact or specific training demands are introduced. Posting trot rather than sitting trot is the appropriate gait for almost all work on a young horse in early training. Posting removes the rider's weight from the horse's back during the rising phase of each stride and gives the back one beat of every two to swing without load. A horse with a difficult sitting trot frequently produces a markedly better posting trot precisely because the posting mechanics give the tight back the release that sitting continuously prevents. Continue working in posting trot until the horse's back has developed enough strength and suppleness through progressive gymnastic work that the sitting trot becomes genuinely comfortable — which in most horses with initially difficult trots means several months to a year of predominantly posting trot work.