What is described by the term "Wheel Back" in dog handling?

The term "Wheel Back" in dog handling refers specifically to a back line that is arched markedly over the loin of the dog. This characteristic is significant because it can influence both the dog's movement and overall appearance during competition or evaluation. An arched back line typically denotes a certain athleticism and balance in the dog's structure, which is often desirable in many breeds as it reflects their ability to move gracefully and efficiently.

This particular feature is especially important in conformation shows and performance events where the dog's physical structure can be a determining factor for scores. The correct identification of "Wheel Back" enhances the handler's understanding of the ideal dog structure and movement, leading to better training and presentation in the ring.