Underwater treadmills are becoming much more common in veterinary offices around the country. I was fortunate enough to work with a veterinarian 5 years ago that included this great therapy in her office along with acupunture and chiropractic care for her canine patients.
These treadmills are designed with rehab in mind. The dog is supported with a life jacket (when needed) and the water is raised until the dogs feet are easily moving through the movement of the treadmill. More water can be used with joints that need less compression – post surgical knees, symptomatic discs etc. Speed can be monitored.