Your dog was reliable on the A-frame for two years. Then last trial, they stopped at the top and wouldn't come down. Or your fast, driven dog has been moving more slowly for the last month. Or your dog who loved tug and toy play has suddenly started declining the reward.
The instinct for many handlers is to think about training — what changed, what went wrong, how to fix it. But before you pick up a clicker, you need to rule out pain.
The Rule: Pain Before Training
This is the most important principle in performance problem-solving. Any sudden change in a dog's behavior or willingness to work is a medical concern until proven otherwise. Dogs cannot tell you where it hurts. They communicate through behavior changes — and we often misread those signals as training problems.
Behaviors That Often Signal Pain (Not Training Issues)
| Behavior Change | What Handlers Often Think | What It Often Actually Is |
|---|---|---|
| Refusing the teeter or A-frame | Confidence problem; needs retraining | Back, shoulder, or hip pain on descent |
| Suddenly knocking bars | Focus issue; jumping carelessly | Shoulder soreness affecting arc |
| Slowing down overall | Motivation problem; needs more drive work | Generalized pain; thyroid; early joint disease |
| Popping out of weave poles | Needs weave retraining | Iliopsoas or lumbar discomfort |
| Reluctant to start a run | Boredom or distraction | Pain-averse anticipation |
| Snapping, growling when touched | Bad attitude; dominance | Pain on handling or palpation |
| Declining toys or treats after runs | Poor food drive | Pain-related stress suppressing appetite |
The Diagnostic Process
Step 1: Observe Carefully
Watch for limping, stiffness after rest, difficulty getting on/off furniture, hesitation on stairs, sensitivity to touch along the spine or limbs. Any of these alongside a performance change strengthens the case for a vet visit.
Step 2: See a Vet — The Right Kind
A general practice vet is a starting point, but for performance dogs, a veterinary sports medicine specialist or canine rehabilitation therapist will find things a general vet misses. Iliopsoas strains — extremely common in agility dogs — are frequently missed on standard exams. Request a full orthopedic workup if you suspect a musculoskeletal issue.
Step 3: Rest and Observe
If the vet finds nothing obvious, a 2-week rest period followed by gradual return can reveal whether activity is the cause. A dog who returns to normal behavior after rest was likely compensating for something physical.
Step 4: Only Then Address Training
If the dog has been cleared medically, then you can begin thinking about whether it's a genuine training issue — a criterion that wasn't maintained, a new environmental challenge, a confidence gap that appeared under new conditions.
The Danger of Training Through Pain
If a dog has a physical problem and you attempt to retrain the behavior — adding pressure, increasing criteria, working on confidence — you are:
- Making the underlying physical issue worse
- Teaching the dog that the sport causes pain
- Potentially creating long-term behavioral avoidance that outlasts the injury
- Wasting time on a "training problem" that doesn't exist
Building a Performance Baseline
The best way to notice changes is to track your dog's performance consistently. A dog whose run times are gradually slowing over six months is telling you something — but you might not notice it run-by-run. A log or tracking system makes trends visible that you'd never see in the moment.
Barkloop logs your run times, faults, and results automatically across every trial. If your dog's performance is trending in a direction — slower times, more contact faults, increased bars knocked — your history will show it clearly long before it becomes a crisis.