Appropriate arena schooling develops the musculature horses need to carry riders safely and comfortably, with welfare implications for both horse and rider.
Progressive physical development is a welfare investment. A horse trained correctly over months develops the strength to carry a rider with ease and comfort, protecting both musculoskeletal health and the pleasure of the horse-rider partnership. Horses asked to perform movements beyond their current strength and balance compensate through incorrect muscle engagement that creates chronic soreness and accelerates wear on joints and soft tissues.