Equine Hydrotherapy: Evidence and Welfare Applications

The evidence base and welfare applications of hydrotherapy modalities in equine rehabilitation and recovery.

Key Facts

Water treadmill therapy allows horses to exercise with reduced weight-bearing, supporting rehabilitation from limb injuries
Cold water hosing reduces acute inflammation and provides analgesia following soft tissue and limb injuries
Spa treatments using cold salt water are used for treatment of hoof conditions including laminitis and hoof abscesses
Swimming as an equine rehabilitation modality has fallen from favor due to cardiovascular strain and limited clinical evidence
Water treadmill use is contraindicated in horses with open wounds, certain skin conditions, or respiratory disease
The psychological welfare of horses during hydrotherapy must be considered, with gradual introduction essential for compliance

Welfare Considerations

Equine hydrotherapy represents a welfare-positive rehabilitation tool when used appropriately and with attention to individual horse responses. Water treadmill therapy provides a low-impact exercise environment that maintains cardiovascular fitness and muscle mass during recovery from orthopedic injuries, reducing the period of box rest that is itself a welfare concern due to behavioral restriction and gastric acid exposure. Welfare considerations in hydrotherapy delivery include proper introduction to the equipment to prevent fear and injury, monitoring for signs of fatigue or distress during sessions, and appropriate use of water temperature and duration. The evidence base for water treadmill rehabilitation is growing, while the evidence for swimming is weaker and the associated welfare risks (cardiovascular stress, lack of control) are more significant. Integrating hydrotherapy into a comprehensive rehabilitation plan coordinated between veterinarian, physiotherapist, and farrier optimizes welfare outcomes.

What You Can Do

Discuss hydrotherapy options with your equine veterinarian as part of rehabilitation planning for orthopedic injuries
Ensure horses are gradually introduced to water treadmills with patience and positive reinforcement
Monitor horses carefully for signs of fatigue, anxiety, or discomfort during hydrotherapy sessions
Use cold water hosing for acute soft tissue injury reduction as an accessible first-line welfare intervention
Work with a qualified equine physiotherapist to integrate hydrotherapy appropriately into overall rehabilitation plans