PT Inquest 402: Knee Valgus and Fatigue During Drop Jump
Jun 24, 2025
Explore the intriguing connection between hip mechanics and knee valgus during drop jumps. Dive into discussions on the impact of fatigue on injury risk, particularly concerning ACL injuries. The hosts also engage in a playful ranking of various foods while bringing humor to the analysis of recent studies. They scrutinize measurement methods for knee biomechanics and advocate for clearer communication in research. With insights into innovations and personal anecdotes, this episode blends education with entertainment.
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Hip Rotation Linked to Knee Valgus
- Greater hip internal rotation range of motion correlates with increased dynamic knee valgus during jump landings.
- This association persists both before and after fatigue in competitive athletes.
Relative vs Absolute Knee Valgus
- Absolute knee valgus may be less meaningful than relative valgus to anatomical capacity.
- The degree of hip internal rotation might predict knee valgus as a percentage of available range.
Load, Not Just Valgus, Causes ACL Injury
- Knee valgus alone isn't the whole issue; load magnitude and direction are critical.
- ACL injury likely involves valgus combined with high load rather than valgus position alone.