07/29/2026
Most running injuries involve the muscles, tendons, or bones. But what happens when your leg suddenly stops moving the way it should—even though nothing hurts?
For a small number of runners, the answer may be runner's dystonia, a rare neurological movement disorder that is often mistaken for a running injury. Because the condition is uncommon and difficult to recognize, many runners spend years searching for answers before receiving the correct diagnosis.
Most running injuries involve the muscles, tendons, or bones. But what happens when your leg suddenly stops moving the way it should—even though nothing hurts? For a small number of runners, the answer may be runner's dystonia , a rare neurological movement disorder that is often mistaken for a ru