Water Treadmill for Dogs (Hydrotherapy)

What it is, in plain terms

A treadmill inside a glass tank. Your dog walks on it while the tank fills with warm water to a depth chosen for them, sometimes to the hock, sometimes to the chest, depending on how much help they need.

The point is buoyancy. Water carries a large share of your dog’s weight, so the legs can move properly while the joints take far less load than they would on the floor. A dog who struggles to walk the length of a hallway can often walk steadily for several minutes in the tank.

Why it does something walking on land can’t

Three things are happening at once, and that combination is hard to reproduce any other way.

The water takes the weight. Less load through a sore hip, knee or spine, so a dog is willing to use the leg instead of guarding it.
The water gives resistance. Moving through water is harder work than moving through air, so muscle is built even at a slow walking pace.
The warmth helps. Warm water tends to relax tight muscle, which makes the whole session more comfortable and more productive.

There is also something less measurable. Dogs who have stopped trusting a leg often use it in the tank before they will use it on land, and that often carries over.

A merle dog walking in the underwater treadmill in a blue harness, seen from the side

What a session actually looks like

Your dog walks into the tank on a ramp and the door closes behind them. The water rises slowly. Most dogs are curious rather than worried, and a practitioner is in the tank with them or beside it the whole time.

Speed and water depth are set for your dog and adjusted as they improve. Sessions are short to begin with, a few minutes of actual walking is real work for a dog who has been compensating for months.

First time in, some dogs need a few minutes to decide the water is fine. That is normal and nobody is rushed.

Who it suits

Dogs recovering from knee, hip, spinal or elbow surgery, once the wound has healed
Arthritic dogs who need to build muscle without loading sore joints
Dogs with degenerative myelopathy, to keep the back legs working for as long as possible
Dogs carrying extra weight, where land exercise is uncomfortable
Dogs who have lost condition after a long rest or illness

It is not right for every dog or every stage. Open wounds, some heart conditions and certain infections rule it out, which is part of what the first evaluation is for.

Questions

Questions we get asked

Is the underwater treadmill safe for my dog?

A practitioner stays with your dog throughout, the water level is set for their size and condition, and the speed starts slow. Most dogs settle within the first session. It is not suitable for every dog, open wounds, some heart conditions and certain infections rule it out, which is why the first appointment is an evaluation.

Can my dog use the water treadmill after surgery?

Usually once the wound has healed. Most of the time skin staples and sutures come out at around two weeks, and if the wound is healed, treadmill work can begin then. We follow your surgeon’s instructions on timing.

Does my dog need to know how to swim?

No. This is walking, not swimming. Your dog’s feet stay on the treadmill belt the whole time and the water is only as deep as it needs to be.

How many sessions does a dog need?

It depends entirely on what we are working on. Some dogs come for a short block after surgery; dogs with progressive conditions may come regularly for a long time. The evaluation sets a plan with something measurable in it, and we will tell you honestly when we think more visits are not the right thing.