Impulsion can occur at the walk, trot and canter. The canter can be further divided by the frame and impulsion of the horse. Impulsion at various gaits may not always appear the same. The horse should maintain tempo, rhythm, and impulsion. It is known for its "floating trot" - full of impulsion and suspension. However, overuse of voice to encourage impulsion will cause a horse to ignore the trainer. Impulsion is the movement of a horse when it is going forward with controlled power. This both encourages and requires collection and impulsion in this movement. The horse is very collected and moves with great impulsion. Banks up require large amounts of impulsion, although not speed, from the horse. Fences within the water need to be ridden with a good deal of impulsion. Initially, Mauritian civil and commercial aviation developed under the impulsion of Rogers & Co Company. Showing good impulsion from behind, demonstrating powerful drive. Bullfinches must be approached positively, with lots of impulsion, in order to prevent stops. With rollkur, impulsion and throughness may be lost due to a stiff, improperly stretched back.