How ACL injury derailed Lindsey Vonn's heroic return to Olympic competition

Feb 9, 2026

1 min

Karin Gravare Silbernagel


An ACL rupture couldn't keep skiier Lindsey Vonn off the slopes to start this week's Olympics. But according to the University of Delaware's Dr. Karin Silbernagel, the injury likely contributed to her inability to land safely Sunday on the downhill course in Cortina d’Ampezzo, Italy. The crash ended her heroic return to competition


Dr. Silbernagel, a professor of physical therapy, studies tendon injuries in the ankle and knee in elite athletes, especially Achilles ruptures and ankle function. She was quoted in an ESPN story about the rash of such injuries in the NBA and can specifically address the impact they could have on competition now and for the rest of an athlete's career.


Her research shows that even after successful surgery, many athletes return to competition but not many among them return to peak explosiveness or durability. The impact a major injury would have on a fresh injury like Vonn's is obvious, she said.


Dr. Silbernagel's research on ankle and knee injuries dates back to the early 2000s. She consults with professional sports teams relating to tendon injuries and is a consultant to the NFL's Musculoskeletal Committee.


To connect directly with Dr. Silbernagel and arrange an interview, visit her profile and click the "contact" button. Interested members of the media can also send an email to MediaRelatons@udel.edu.

Connect with:
Karin Gravare Silbernagel

Karin Gravare Silbernagel

Professor, Physical Therapy

Prof. Silbernagel's research aims to advance the understanding of tendon and ligament injuries and repair.

Achilles TendinopathyPatellar TendinopathyAchilles Tendon RuptureTendon RuptureKnee Injuries
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