The Difference Between Moving Close & Single Tracking in a Dog

Breeds of dogs move differently. Sighthounds, such as whippets, often gallop in a double suspension leaping movement that results in all feet off the ground, according to the Dog Owner's Guide. However, certain aspects of movement, including single tracking, occur in most normal dog movements.

  1. Single Tracking

    • Proper movement for a dog requires leg positioning that does not interfere with their other legs, helps their body stay aligned and provides balance. Dogs stand with legs straight under the shoulder and hip sockets. Increased speed results in the legs moving inward toward the center of the dog's gravity while maintaining a straight line, or single tracking, according to Hilary Harmer, author of "Showing and Judging Dogs," excerpted on the website English Cocker Spaniel Club of America.

    Moving Close

    • Structural problems or injuries often create leg movements that don't maintain a straight bone alignment, or moving close, according to Harmer. This gait results in legs moving close or even making contact with another leg, according to Willowind Dalmatians. Incorrect leg placement creates various problems, including loss of balance, unstable movement and unsteady gait.

    Exceptions

    • Leg structure affects the gait of the dog.

      The shape, size and structure of a dog effect the dog's movement, according to veterinarians and authors David M. Nunamaker and Peter D. Blauner. Some breeds with short legs, including basset hounds, corgis and dachshunds, do not move in single tracking. Short legs move in a rolling lateral gait considered normal for those breeds of dogs.