Brought to you by The Plaidcast
When a horse comes up lame, it’s easy to look for a “the” moment where they hurt themselves. Something specific that explains what went wrong. Sometimes that moment exists. Horses do have acute injuries liketwists, strains, and incidents that happen quickly and are immediately obvious. But in many cases, the cause isn’t a single event.
Dr. Julie Vargas, founder of Limestone Equine Performance Medicine, sees this pattern consistently in sport horses. While acute injuries tend to get the most attention, many of the issues she treats develop gradually, built on repeated, low-level stress over time. “It’s kind of this over and over repeat low-level stress,” she explains, describing how these injuries accumulate rather than appear all at once.
Why the Hardest Injuries Aren’t the Most Obvious
Acute injuries are often the most straightforward to treat. They happen quickly, can be easier to identify, and in many cases follow a more predictable healing process. “Those are the really fun ones to treat,” Vargas notes, because they can often resolve more cleanly with the right intervention.
The more challenging cases are the ones that build slowly. Repetitive stress injuries don’t always have a clear starting point. Instead, they develop through cycles of strain, compensation, and continued use. A joint that absorbs slightly more impact than it should. A soft tissue structure that takes on just a bit too much load, day after day.
Individually, these stresses may not cause a problem. Over time, they add up.
The Role of Compensation
As these small stresses accumulate, the horse adapts. Their movement patterns shift, often subtly at first. A horse may offload one limb slightly, change how it uses its body over a fence, or adjust its balance in a way that reduces discomfort in the short term. But those adaptations come at a cost.
“There’s probably some maladaptive movement going on,” Vargas explains, noting that compensation is often part of the underlying issue. When one part of the system is under strain, another part takes on more work, and over time, that can place additional stress on other areas. By the time a horse shows clear signs of lameness, the issue is often no longer isolated.
This is where rehabilitation becomes more complex.
Vargas describes it as peeling back layers, addressing one issue only to reveal another underneath. “We’ve just peeled off one layer of the onion,” she says, a phrase familiar to many riders who have gone through the rehab process.
That doesn’t mean the initial treatment failed. It means the underlying system still needs attention. Addressing one issue doesn’t always resolve everything underneath it. Without looking at how the horse is using its body as a whole, the risk of recurrence remains.
Because repetitive stress injuries develop over time, they also require time to correct. It’s not just about healing tissue, but also helping the horse move more correctly again. A horse that has adapted its movement to accommodate discomfort needs to rebuild strength, improve balance, and regain coordination. That process takes time and consistency. It’s a slower path that requires a broader approach than treating a single acute injury.
Looking at the Bigger Picture
One of the key shifts in modern equine medicine is moving beyond treating only the most obvious problem. Instead of focusing solely on the site of injury, veterinarians and trainers are increasingly looking at how the horse is using its entire body. Where is the stress coming from? What patterns led to this point?
That perspective is essential in cases where the injury is the result of cumulative strain. Because if the underlying cause isn’t addressed, the outcome is often temporary. The horse returns to work, the same patterns remain, and the cycle can begin again.
Want more insight from Dr. Julie Vargas? Listen to this episode of The Plaidcast and subscribe on your favorite podcast platform for more conversations with the experts shaping equestrian sport.
