Pace and Impulsion

Definitions

In simplest terms, pace equals speed, and impulsion equals thrust. They go hand in hand to a certain degree because as a horse increases its pace, its thrust also increases, both on the flat, as the animal pushes off the ground harder to achieve greater speed, and over fences, when the greater pace allows the horse to launch its body weight more easily. However, there is a point at which a horse needs more impulsion, but not more pace, in order to turn in a first-rate performance—that is, simply going faster will not improve the quality of the round, but having more impulsion will.

For instance, in courses involving tight turns, such as a handy hunter course, a horse cannot create sufficient thrust off the ground at the fences by simply going faster, for the acuteness of the turns restricts the pace. However, a rider can create more impulsion in the horse by adding leg and balancing the horse with the hands so that the horse’s engine—its hindquarters—will push harder while the rider’s hands will restrict the horse from gaining speed. (See chapter 4, “Equitation on the Flat,” and chapter 5, “Equitation over Fences,” for a more detailed discussion of the rider’s control of the horse’s impulsion.)

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