What term describes the action when the toe of the hind foot strikes the toe of the front foot in motion?

The term that accurately describes the situation when the toe of the hind foot strikes the toe of the front foot during motion is forging. This action commonly occurs in horses with an irregular gait and is often associated with a lack of proper hoof balance or conformation issues. When a horse forges, the hind foot can encroach on the space of the front foot, leading to potential injury or discomfort for the horse if it frequently occurs. This term is specifically related to the interaction of the feet during movement and is distinguished from other terms that describe different forms of contact or movement, such as overreaching, which involves the hind foot stepping too far ahead, and interference, which generally refers to any abnormal contact between limbs. Scapular swing relates to the movement of the shoulder area rather than the interaction of the hooves. Thus, forging is the most precise term for the action described in the question.