In this episode of the RX Physiotherapy Podcast, Trent Cooksley dives into the biomechanics behind ACL injuries and re-injuries.

Drawing from landmark video analysis research and current return-to-sport evidence, we unpack:

• Why ACL injuries occur within 40–50 milliseconds of ground contact
• The role of knee valgus, internal rotation, and near-full extension
• Why ACL injuries are often a system failure — not just a knee problem
• The importance of quadriceps strength in reducing re-injury risk
• How fatigue alters landing mechanics late in games and seasons
• Why young athletes are up to 15x more likely to sustain a second ACL injury

ACL injuries are rarely random.
They are predictable.
And that means they are modifiable.

If you’re an athlete, coach, parent, or clinician, this episode is essential listening.

In our next episode, we’ll explore non-surgical ACL rehabilitation and what to expect from that pathway.

Disclaimer: Before making any health changes, consult with a healthcare professional.

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