What are the most common gymnastic exercises used by top hunter jumper trainers?

Top hunter jumper trainers consistently use a specific set of gymnastic exercises that address the primary technical and position qualities their discipline requires, and the frequency with which these specific exercises appear across different training programs reflects their genuine efficacy in producing results. The trot-pole-to-crossrail-to-one-stride-to-vertical is perhaps the most fundamental and most universally used gymnastic, providing an entry at trot that sets the horse at a consistent speed, a crossrail first fence that allows a comfortable beginning, and a one-stride to a vertical that develops the combination technique that courses require. The bounce — either a single bounce or a series of two or three bounces — appears in virtually every top trainer's program because the specific physical demand of the bounce's immediate takeoff develops front end quickness and hindquarter power that no other exercise replicates. The in-and-out set at various distances — one-stride, two-stride, and deliberately long or short versions of each — develops the adjustability that courses require by training the horse to compress or extend within a related distance. The oxer in gymnastic lines — replacing a vertical with a spread fence that requires the horse to jump across width as well as height — develops the scope and athletic arc of the jumping effort rather than only the height management that verticals develop. Ground poles set as cavaletti at trot — either a single pole or a series of poles at trot distances — develop the rhythm and footfall awareness that improves the horse's canter quality and distance perception. The in-and-out with a placing pole before the first element — typically a ground pole approximately nine feet before the fence — gives the horse a consistent takeoff for the first element, allowing the gymnastic work to develop technique without variability in the approach distance obscuring whether technique is actually improving.