Which factor can negatively impact a horse's performance during conditioning?

Lack of proper shoeing or hoof care is crucial to a horse's performance during conditioning because the hooves are essential for overall mobility and health. Proper hoof care ensures that the horse can perform optimally without pain or discomfort. If a horse is not shod correctly or if hoof health is neglected, it may experience issues such as lameness, discomfort while working, and an inability to perform at its best. These problems can hinder the horse’s ability to engage in conditioning activities, leading to decreased effectiveness in training or performance events.

In contrast, adequate rest is important for recovery, excessive grooming is generally beneficial for skin health and bond-building, and a consistent feeding schedule supports digestive health and energy levels—all of which contribute positively to a horse's performance during conditioning. Proper hoof care stands out as a critical factor that, if overlooked, can have serious negative consequences for a horse's ability to train effectively.