Hydrotherapy.
Hydrotherapy at AURA happens in a glass-walled underwater treadmill. Buoyancy reduces joint load, warm water relaxes muscle, and a moving belt teaches the normal walking pattern. The therapist controls every variable, calibrated to the specific animal on the day.
What hydrotherapy is
Hydrotherapy uses water for three properties: buoyancy, resistance, and warmth. Buoyancy reduces the load on injured or arthritic joints; resistance forces muscles to work without high-impact strain. Warm water relaxes muscle and supports blood flow into tissue that needs repair.
How those properties are delivered matters as much as the properties themselves. A dog swimming in a pool is using water in a different way from a dog walking on a submerged treadmill, even if both involve a wet animal. The treadmill is the tool we use, because it lets us train the movement pattern that recovery is actually meant to restore.
The benefits of underwater treadmill hydrotherapy
The underwater treadmill is more than a wet treadmill. Every variable is controlled, every session adjusts to what the therapist sees, and every parameter is measurable.
Adjustable water height
Ankle-deep keeps the gait close to land walking. Hock-deep offloads about a third of body weight. Stifle and hip-deep can offload up to 60 percent. Each session sets the depth to match the day’s goal.
Variable belt speed
Slow walk for an early post-op case. Brisker for a senior dog on conditioning. The belt speed adjusts in small increments throughout the session, based on how the gait looks through the glass.
Therapeutic water temperature
Warm enough to relax tight muscle and improve blood flow into recovering tissue. Not so warm that animals overheat. Cold pools defeat the purpose. Warm water lets the body work.
Controlled, repeatable movement
Every step on the same belt, at the same speed, in the same water depth. Progress is comparable session to session. The treadmill turns hydrotherapy into data instead of impression.
Therapist observation through glass
Your therapist watches limb loading, joint angles, gait symmetry, and weight transfer from outside the chamber, in good light. Adjustments happen mid-session, based on what is actually being observed.
Low impact, high resistance
Water resistance is roughly 12 to 14 times that of air. Even at low belt speeds, muscles work harder than they would on dry land. Strength builds without joint impact.
Confidence rebuilding
Animals recovering from surgery or trauma often regain proprioception and walking confidence faster in water than on land. The gentle resistance gives feedback. The buoyancy reduces fear of falling.
Lifevest support, every session
Every animal goes into the chamber in a properly fitted lifevest. We carry sizes from pocket animals through medium-large dogs, so the fit is always right. The head stays above water regardless of depth or speed.
How hydrotherapy actually works
Underwater treadmill hydrotherapy works on five physical principles at once, each producing a distinct physical effect on the body.
Buoyancy reduces joint load
Water depth controls how much weight your animal’s joints carry. The deeper the chamber fills, the more weight is supported by water rather than by the joint itself. Ankle-deep offloads roughly 10 to 15 percent of body weight. Chest-deep can offload up to 60 percent. The therapist sets depth based on what the joints can tolerate that day.
Water resistance builds muscle
Water is roughly twelve to fourteen times more resistant than air, depending on the speed of movement. Even at a slow walk, muscles work harder than they would on dry land. The result is strength building without high-impact loading on joints, tendons, or ligaments.
Therapeutic warmth opens tissue
The chamber holds water at therapeutic temperature throughout the session. Warm enough to relax tight muscle, dilate small blood vessels, and improve blood flow into tissue that needs repair. Cool enough that animals stay comfortable rather than overheated.
Hydrostatic pressure reduces swelling
Water exerts even pressure on every submerged surface of the body. That pressure helps push fluid out of swollen tissue and back into the circulatory system. For post-surgical swelling and chronic oedema, hydrotherapy is one of the most effective drug-free options.
The belt teaches normal gait
Unlike swimming (which trains a survival posture), walking on the moving belt reinforces the actual walking pattern the body is meant to use. Every step the animal takes on the treadmill is rehearsing the movement they need to perform on dry land. This is why the treadmill works for rehabilitation in a way pools cannot.
The therapist sees every step
Glass walls on the chamber let the therapist watch limb loading, joint angles, gait symmetry, and weight transfer in real time, from outside the water. If something shifts mid-session, the depth or speed shifts to match. The animal cannot disappear below the waterline the way they do in a pool.
Why an underwater treadmill, not a swimming pool
The short version: a pool makes a dog swim, and the treadmill makes a dog walk. Walking is the rehabilitation pattern; swimming reinforces the compensatory posture rehab is meant to correct.
Side-by-side: what changes between the two
| Swimming Pool | Underwater Treadmill | |
|---|---|---|
| Movement pattern | Swimming. Reinforces the compensation rehab is meant to correct. | Walking. The actual rehabilitation pattern. |
| Measurability | No measurable units. Progress is a verbal impression. | Water level, belt speed, duration, and gait notes recorded each session. |
| Brachycephalic breeds | French bulldogs, pugs, Shih Tzus often struggle to breathe. | Head stays above water. Breathing stays easy. |
| Water-shy dogs | Often refuse to enter. | Settle in as the water rises around them on the belt. |
| Water temperature | Fixed, often too cool for therapeutic work. | Calibrated warm (28 to 32 °C). |
| Therapist view | From the deck, through splash and distance. | Through glass walls, every step. |
| Session structure | Continuous swimming until the dog tires. | Controlled rounds with rest intervals between. |
We have written a long-form comparison covering ten dimensions where the two approaches differ, including posture trained, therapist control, measurability, safety across breeds, and water temperature. If you are deciding between a pool centre and AURA, read it.
Common misconceptions about hydrotherapy
Owners often arrive with one or more of these beliefs. Most are partly true, which is why they persist, but none tells the whole story.
“Hydrotherapy is just swimming.”
Not quite. AURA’s hydrotherapy uses an underwater treadmill, not a swimming pool. The animal walks rather than swims. Walking is the rehabilitation movement we want to train; swimming reinforces a survival posture that often makes compensation worse. The two are different forms of water-based work, and they produce different outcomes.
“Dogs that don’t like water can’t do hydrotherapy.”
Many dogs that refuse to swim in a pool happily settle into the treadmill chamber. The water rises around them while they are already standing on dry ground, so the drowning reflex never triggers. The head stays above water throughout, and a lifevest provides extra support. Most refusers convert within one or two sessions.
“It’s only for big dogs.”
The treadmill works for dogs of every size, plus cats and rabbits. Smaller animals use shallower water and a slower belt; larger animals use deeper water and longer rounds. The principles (buoyancy, resistance, warmth, gait training) apply across species.
“One session will show results.”
Hydrotherapy builds up over time. Acute recovery cases often see noticeable improvement after three to five sessions. Chronic management cases see gradual gains over weeks. A single session is rarely enough to make a lasting difference; the work accumulates.
“Pool and treadmill are interchangeable.”
They are not. The treadmill trains walking under controlled depth and speed, with the therapist observing through glass. The pool trains swimming, with the dog setting the pace and the therapist watching from the deck. For rehabilitation, the treadmill is the right tool. For unstructured exercise, a pool can be fine.
What a hydrotherapy session looks like
A typical hydrotherapy session runs 35 to 55 minutes. Actual treadmill time runs 10 to 35 minutes, depending on the animal, their condition, and how they are feeling on the day. No two animals are the same, and no two days are either. Our therapist watches for what has shifted since the last session and shapes the work to match. Here is the step-by-step.
Check-in and warm-up
Your animal may arrive after a laser or massage session, or come straight in for hydrotherapy. Either way, we start dry. The therapist checks on your animal’s condition, gets updates from you, and assesses how they are feeling on the day before any water work begins. A few light stretches settle the muscles. Sometimes we use treats. Often we do.
Dry entry to the chamber
Your animal walks onto the dry treadmill belt inside the glass-walled chamber. The door closes. There is no plunge, no swim, no jumping in. Animals settle into the chamber far more easily than into a pool because the water comes to them, not the other way around.
Water fill and depth calibration
Water rises gradually around the standing animal. The therapist sets the depth to match today’s plan: ankle for late-stage gait work, hock for moderate offload, stifle or hip for significant joint protection.
Belt start and timed walk
The belt begins at a slow walk pace. As your animal settles into a steady rhythm, speed builds. A session might include anywhere from 1 to 6 rounds of active walking with short rest intervals between, and the duration of each round varies based on the animal, the condition, and the programme. The therapist watches the gait through the glass and adjusts speed and depth mid-session.
Cool down and chamber drain
The belt slows. Water drains. Your animal walks out of the chamber under their own power, then heads off to the shower area or home, whichever you prefer.
Shower and towel dry
Chamber water gets rinsed off in the shower area. Towel dry follows. Most animals find this part oddly enjoyable.
Optional grooming
If you have booked grooming on the same visit, Alicia takes over from here. Full bath, blow dry, and nail care all happen in the same trip, which saves you a second appointment. Learn more about our grooming service.
Notes and next steps
We log water level, belt speed, session duration, and gait observations into your animal’s record. A summary goes home with you. The next session gets booked. After each block (typically 6 to 12 sessions), your vet receives a structured report covering everything we observed and adjusted along the way.
Conditions we treat with hydrotherapy
Hydrotherapy is one of the most versatile modalities in our toolkit. It tends to help animals in the following situations:
- Post-surgical recovery Orthopaedic surgeries (cruciate, patella, hip), spinal surgeries (IVDD decompression), fracture repair, soft tissue surgery.
- Spinal cord conditions IVDD recovery, post-decompression rehabilitation, partial paralysis, neurological gait issues.
- Joint disease Arthritis, hip and elbow dysplasia, degenerative joint disease, chronic stiffness.
- Muscle issues Atrophy, weakness on one side, gait imbalance, conditioning after extended rest.
- Senior support Age-related mobility decline, sarcopenia, balance and coordination issues, gentle exercise without joint impact.
- Weight management Calorie burn in a way that does not aggravate joints already carrying too much weight.
If your animal does not fit the categories above and you are not sure whether hydrotherapy is right, message us with the details. We will tell you straight if it is not a fit.
Why choose AURA for hydrotherapy
A handful of hydrotherapy centres operate in Singapore. Five things set AURA apart.
- More than a decade of practice Our therapists have more than a decade of experience in specialised animal rehabilitation. Every hydrotherapy plan is overseen by senior clinicians who have spent years working on the underwater treadmill.
- Reports ready for your vet If your animal arrives with a vet report, we build the rehabilitation programme straight from it. If they arrive without one, we assess your animal in person and shape the programme together with you. We keep detailed session reports available to your vet on request, so they always have the latest picture when they ask.
- Cooperative-care handling The introduction to the treadmill is the most important part of the whole programme. We treat it that way. The space, the door, and the rising water are all introduced gradually, with constant attention to how your animal is responding. First-time animals and anxious animals settle into the work, and the session becomes possible.
- Multi-modal, not single-tool The right tool, not the same tool every time. If physiotherapy or laser is what your animal needs, that is what we recommend, even if you came in asking for hydrotherapy. Each modality earns its place in the plan based on what your animal actually needs.
- Calm, home-like environment The centre is built to feel like home, not a clinic. Calm rooms, warm light, soft acoustics. Animals heal better when they are not stressed.
What the numbers usually look like
These are reference points, not promises. Every animal is unique. The actual duration depends on their condition, tolerance, age and disposition, surgical results, and how well the at-home routine goes between visits. Honest pace beats false promises every time.
Safety, and who should not come
Hydrotherapy on a treadmill is significantly safer than pool swimming for most rehabilitation cases. The head stays above water throughout. The animal is supported on the belt. There is no drowning reflex to manage.
That said, there are conditions where hydrotherapy is contraindicated until medically cleared:
- Open wounds or recent incisions that the surgeon has not cleared
- Active skin or ear infections
- Active diarrhoea, vomiting, or contagious conditions
- Severe cardiac or respiratory disease
- Uncontrolled epilepsy
- Pregnancy in the late stages
If your animal falls into any of the above, we will defer hydrotherapy and use other modalities (laser, physiotherapy, massage) while we coordinate with your vet.
Not sure if hydrotherapy is right for your animal right now? Message us. We will tell you straight whether you should come in, defer, or check with your vet first.
We strongly recommend checking in with your vet before starting any therapy. Your vet knows your animal’s full medical picture and is the best person to confirm whether the conditions are right for rehabilitation. For post-operative cases, we require written clearance from the operating surgeon before hydrotherapy begins, plus the referral letter and any imaging where appropriate.
Frequently asked questions about hydrotherapy
Is underwater treadmill hydrotherapy safe for dogs after surgery?
How many hydrotherapy sessions does my dog need?
How long is each hydrotherapy session?
Does my dog need to know how to swim for hydrotherapy?
Can senior dogs use hydrotherapy?
Can cats and rabbits use hydrotherapy?
Do I need a vet referral for hydrotherapy?
What conditions does hydrotherapy treat?
How is an underwater treadmill different from a swimming pool?
How much does hydrotherapy cost at AURA in Singapore?
Connect with us
Reading about an underwater treadmill is one thing. Standing next to the chamber and watching a dog walk through it is another. WhatsApp us with your animal’s condition for a quick assessment, or drop by during opening hours for a walk-through.