If you ask any coach, parent, or athlete what causes injuries, you’ll hear a mix of answers: bad luck, overtraining, poor mechanics, and not stretching enough. But sports science is remarkably clear on one point: the strongest predictor of a future injury is a previous injury.
This single factor outweighs age, training load, strength levels, flexibility, and even sport type. And understanding why can completely change how athletes approach recovery, training, and long‑term performance.
Pain disappearing doesn’t mean the body is fully restored. After an injury, athletes often carry lingering deficits such as:
These subtle changes create compensations that overload other tissues and increase the risk of reinjury.
When a joint or muscle is injured, the nervous system often “turns down” activation to protect the area.
For example, after an ankle sprain, stabilizing muscles may stay underactive for months.
This leads to instability, slower reaction times, and higher reinjury rates.
Especially in youth sports, the return‑to‑play decision is often based on one thing:
“Does it still hurt?”
But pain is only one piece of the puzzle.
Full recovery requires restoring strength, power, endurance, movement quality, and confidence. Without these, the athlete is simply not ready for the demands of their sport.
Fear of reinjury, hesitation, and loss of confidence can alter mechanics just as much as physical limitations.
Athletes who don’t trust their bodies tend to move stiffly, avoid certain motions, or overcorrect, each of which increases injury risk.
Even when healed, previously injured tissues may have:
This doesn’t mean the athlete is “fragile.” It simply means the tissue needs progressive, targeted loading to regain full resilience.
A previous injury isn’t a life sentence. It’s a signal.
It tells us that the athlete needs a more complete, structured, and individualized approach to recovery, not just rest and a quick return to play.
The good news?
When rehab is done thoroughly and intentionally, athletes often come back stronger, more resilient, and more confident than before.
A helpful way to explain this to families is:
“The biggest risk factor for a new injury is an old one. Not because the athlete is weak, but because the body adapts to protect itself. Our job is to rebuild strength, movement, and confidence so the athlete returns better than they were before.”
This reframes injury as an opportunity for growth, not a setback.
A comprehensive plan should include:
This is where a performance‑minded physical therapy approach makes all the difference. When rehab goes beyond “pain‑free” and focuses on restoring full athletic capacity, reinjury rates drop dramatically.