A Review of Three Decades of Research Dedicated to Making Equine Bones Stronger: Implications for Horses and Humans.
Authors: Nielsen Brian D
Journal: Animals : an open access journal from MDPI
Summary
# Editorial Summary Over 30 years of research into equine skeletal health reveals that exercise stimulus—particularly high-speed work—is fundamental to maintaining bone strength, with stall confinement causing measurable decreases in bone mineral content even in horses in training. Nielsen's comprehensive review demonstrates that surprisingly brief sprint intervals (50–82 metres) performed as infrequently as once weekly provide sufficient mechanical loading to prevent disuse osteopenia, whereas endurance exercise alone fails to trigger the necessary skeletal adaptations. Nutritional support remains essential for bone development, but dietary optimisation cannot compensate for inadequate exercise stimulus, establishing exercise as the primary driver of bone strength in athletic horses. The review also highlights an often-overlooked concern: certain medications used routinely in equine practice may have detrimental effects on skeletal mineralisation and integrity. Because these mechanisms—sedentary lifestyle, nutritional insufficiency, and drug-related side-effects—directly parallel human bone health challenges, the findings suggest that strategies developed for equine athletes could inform clinical approaches to osteoporosis and injury prevention in people, whilst simultaneously offering farriers, veterinarians, and conditioning coaches evidence-based protocols for reducing skeletal injuries in their horse populations.
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Practical Takeaways
- •Include regular high-speed work (short sprints of 50-82 m) at least once weekly in training programs to prevent disuse osteopenia, even if horses are stall-housed
- •Recognize that endurance training alone will not adequately strengthen bone; complement with speed work for optimal skeletal health
- •Review pharmaceutical regimens for potential bone health impacts and ensure nutritional adequacy alongside appropriate exercise prescription
Key Findings
- •Stall housing eliminating high-speed exercise causes disuse osteopenia and decreased bone mineral content in the third metacarpus of horses in training
- •As few as one high-speed sprint per week (50-82 m) is sufficient to maintain bone strength in horses
- •Endurance exercise without speed does not provide the same bone health benefits as short sprints in horses
- •Proper nutrition alone cannot maintain bone strength without appropriate exercise stimulus; several pharmaceuticals may have unintended negative effects on bone health