Horse gait

Horse gaits are the various ways in which a horse can move, either naturally or as a result of specialized training by humans.

Gaits are typically categorized into two groups: the "natural" gaits that most horses will use without special training, and the "ambling" gaits that are various smooth-riding four-beat footfall patterns that may appear naturally in some individuals, but which usually occur only in certain breeds. Special training is often required before a horse will perform an ambling gait in respond to a rider's command.

Another system of classification that applies to quadrupeds uses three categories: walking and ambling gaits, running or trotting gaits, and leaping gaits.

The British Horse Society Dressage Rules require competitors to perform four variations of the walk, six forms of the trot, five leaping gaits (all forms of the canter), halt, and rein back, but not the gallop. The British Horse Society Equitation examinations also require proficiency in the gallop as distinct from the canter.

The so-called "natural" gaits, in increasing order of speed, are the walk, trot, canter, and gallop. Some consider these as three gaits, with the canter a variation of the gallop, even though the canter is distinguished by having three beats, whereas the gallop has four beats. All four gaits are seen in wild horse populations. While other intermediate speed gaits may occur naturally to some horses, these four basic gaits occur in nature across almost all horse breeds. In some animals the trot is replaced by the pace or an ambling gait. Horses who possess an ambling gait are usually also able to trot.

The walk is a four-beat gait that averages about 4 miles per hour (6.4 km/h). When walking, a horse's legs follow this sequence: left hind leg, left front leg, right hind leg, right front leg, in a regular 1-2-3-4 beat. At the walk, the horse will alternate between having three or two feet on the ground. A horse moves its head and neck in a slight up and down motion that helps maintain balance.

In detail, suppose the horse starts by lifting its left front leg (the other three feet are touching the ground). It then lifts its right hind leg (while being supported by the diagonal pair front right and left hind). Next, the left front foot touches the ground (the horse is now supported by all but the right hind leg); then the horse lifts its right front leg (it is now supported laterally on both left legs), and shortly afterwards it sets down the right rear leg (only the front right leg is now lifted). Then it lifts its left rear leg (diagonal support), puts down the front right (lateral support), lifts the left front, puts down the rear left, and the pattern repeats.

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