What does a "sway backed" horse indicate?

A "sway backed" horse is characterized by a noticeable dip in the back, particularly towards the middle. This condition often results from a combination of factors, including age, poor conformation, or degenerative changes in the spine and surrounding muscles. It is important for horse owners and riders to recognize this conformation issue, as it can affect the horse's overall movement, comfort, and ability to perform various physical activities.

In contrast, other options describe different conditions or shapes of the horse's back. An arched and lifted back indicates a horse that is using its back muscles effectively, often associated with proper engagement and movement. A straight and level back suggests a balanced conformation that generally promotes soundness and fitness. Lastly, a stiff and rigid back could point to other issues such as musculoskeletal problems or lack of flexibility, which are not characteristic of sway back conformation. Understanding these differences is crucial for proper horse care, riding, and training.