Underwater Treadmill vs Hydrotherapy Pool - Why combining both gives dogs the strongest possible rehab outcomes

Hydrotherapy is one of the most powerful tools we have in canine rehabilitation - but not all hydrotherapy is the same. With the addition of our purpose‑built hydrotherapy pool alongside our underwater treadmill, we can now deliver far more precise, progressive and individualised rehab programmes than treadmill alone.

This blog explains:

• How the underwater treadmill (UWTM) and hydrotherapy pool work differently

• Which conditions benefit most from each

• Why combining both creates a more rounded, real‑world recovery

• How this allows us to safely help a wider range of dogs than ever before

  
  

The science that underpins hydrotherapy

Water changes how a dog moves. The key properties we use therapeutically are:

• Buoyancy – reduces load through joints and soft tissue

• Hydrostatic pressure – supports joints and improves proprioceptive input

• Viscosity & resistance – builds strength without impact

• Warmth – improves tissue extensibility and comfort

  
  

What matters most is how much of the dog’s body weight is being unloaded and how controlled the movement is.

The Underwater Treadmill: precision, control and early‑stage rehab

The underwater treadmill is our starting point for the majority of rehabilitation patients - and for good reason.

What the treadmill does best

• Allows controlled, straight‑line movement

• Precisely adjustable water height, speed and duration

• Enables symmetrical gait retraining

• Encourages consistent limb placement and stride repetition

• Reduces joint load while maintaining functional walking mechanics

  
  

Ideal cases for the treadmill

• Post‑operative orthopaedic cases (TPLO, TTA, fracture repair)

• Osteoarthritis management

• Muscle atrophy and weakness

• Neurological cases requiring controlled limb placement

• Dogs new to rehabilitation

  
  

Why we usually start here

The treadmill gives us maximum clinical control. We can observe subtle compensations, adjust parameters in real time and build a safe foundation before progressing to more complex movement.

The Hydrotherapy Pool: strength, freedom and multi‑directional movement

Swimming changes everything.

In the pool, dogs move in three dimensions, rather than a single straight plane. With near‑full buoyancy, joint compression is minimal - allowing us to challenge muscles, cardiovascular fitness and coordination without impact.

What the pool uniquely provides

• Near‑total joint unloading

• Greater shoulder and hip range of motion than treadmill walking

• Recruitment of core and stabilising musculature

• Conditioning in multiple planes of movement

• Cardiovascular fitness without concussive forces

  
  

Dogs who particularly benefit from the pool

Some patients cannot use a treadmill - and for others, swimming is transformative:

• Amputee dogs (unable to achieve symmetrical treadmill gait)

• Dogs with severe orthopaedic pain intolerant of partial loading

• Large or heavy dogs where joint unloading is essential

• Dogs requiring cardiovascular conditioning without limb impact

• Athletic dogs preparing to return to higher‑level activity

For amputee patients in particular, swimming allows balanced propulsion without asymmetrical limb loading, making it the safest and most effective hydrotherapy option available.

Why we don’t swim most spinal patients

Not every dog is a swimmer - and safe rehab is always our priority.

For the majority of spinal cases, particularly:

• IVDD

• Post‑surgical spinal patients

• Dogs with reduced trunk or paraspinal muscle innervation

  
  

Swimming can pose a risk.

Reduced neurological input to the spinal stabilising muscles means:

• Less control of spinal position

• Increased risk of excessive extension or rotation

• Higher reliance on passive structures for stability

  
  

For these patients, the underwater treadmill provides safer support, allowing controlled movement with constant postural input and therapist monitoring.

Why combining treadmill + pool is superior to treadmill alone

Dogs don’t live their lives in straight lines.

While treadmill work restores foundational gait, real‑world movement requires turning, acceleration / deceleration, variable limb loading and core stability under dynamic conditions.

Our progression‑based approach

1. Treadmill first - Build control, confidence, symmetry and strength

2. Introduce the pool - Increase joint range, muscular endurance and cardiovascular fitness

3. Prepare for real life - Condition movement patterns that translate to off‑lead exercise and normal activity

   
   

This combined approach better prepares dogs for returning to free movement, reducing reinjury risk and maintaining long term joint and muscle health.

What this means for your dog

By adding a hydrotherapy pool to our existing underwater treadmill facility, we can now treat a wider range of conditions and patients, tailor rehab with greater precision, progress dogs more safely and effectively and offer both early‑stage control and advanced conditioning.

This isn’t just “more hydrotherapy”. It’s better rehabilitation.

If you’re a dog owner or referring professional and would like to discuss whether treadmill work, swimming - or a combination of both - is right for a specific case, we’re always happy to help.