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farriery
veterinary
biomechanics
anatomy
nutrition
physiotherapy
2025
Case Report

Field-applicable low-intensity exercise induces bronchodilation in horses with severe asthma.

Authors: Mainguy-Seers Sophie, Grondin Sarah-Maude, Lavoie Jean-Pierre

Journal: Equine veterinary journal

Summary

# Editorial Summary: Low-Intensity Exercise and Airway Function in Severe Equine Asthma Severe equine asthma represents a significant welfare and economic challenge, frequently forcing premature retirement or euthanasia when conventional management proves inadequate. Whilst previous research has demonstrated that intense treadmill exercise can temporarily dilate airways in affected horses, whether lighter exercise protocols achievable in field settings could produce similar bronchodilatory effects remained unknown. Mainguy-Seers and colleagues investigated whether practical, low-intensity training regimens could induce airway opening in horses with SEA, moving beyond the laboratory to test interventions applicable to everyday management. Their findings indicate that field-compatible exercise does indeed trigger bronchodilation in these horses, offering a meaningful therapeutic option that could extend working lives and improve quality of life without requiring specialist facilities. For practitioners managing SEA cases, these results suggest that structured light work may constitute a viable adjunct to pharmaceutical and environmental interventions, though further research into optimal intensity, duration, and frequency parameters would help translate this promise into evidence-based protocols.

Read the full abstract on PubMed

Practical Takeaways

  • Horses with severe asthma may benefit from regular light exercise as part of management, potentially extending athletic careers and improving quality of life
  • Field-based training programs appear effective for inducing therapeutic bronchodilation, making this accessible to practitioners without specialized equipment
  • Low-intensity exercise protocols could reduce reliance on medication and potentially delay or prevent early retirement in affected horses

Key Findings

  • Light, field-applicable exercise induces bronchodilation in horses with severe equine asthma
  • Exercise-induced bronchodilation occurs after lower-intensity training regimens, not just intense treadmill exercise
  • Low-intensity exercise may offer a practical alternative to intense exercise for managing airway dysfunction in SEA-affected horses

Conditions Studied

severe equine asthma (sea)airway dysfunction