Slow motion study of canine bone and joint movement, as seen through moving x-rays, offers a close look at skeletal action inside the dog. Dogs were individually filmed and fluoroscoped while moving on a speed-controlled treadmill in a laboratory. Different types of dogs were chosen to illustrate different ways of moving, some showing normal structure and gait, others with faulty action due to serious orthopedic problems. The study includes x-ray views from the side as well as views from beneath the moving dog. For better understanding the narration is clarified with plain text captions and graphic effects as a veterinarian explains what the film is revealing, and how variances in structure help or hinder performance. This video supplements Dogsteps video with additional material; it was filmed during the same time period, but has recently been re-mastered.

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