ArticleCureus2025
Biomechanical Changes in the Lower Limb After a Quadriceps Fatigue Task in Association With Dynamic Knee Valgus.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed.
- The effect of mixed fatigue on knee biomechanics and muscle activation during sidestep cutting in elite soccer players.BMC sports science, medicine & rehabilitation · 2026Article
Corrections and comments
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesDynamic knee valgus (DKV), characterized by knee abduction and external rotation, has been associated with anterior cruciate ligament (ACL) injury, but the predictive accuracy of DKV for ACL injury remains unclear.
methodsThis controlled laboratory study examined fatigue effects on lower limb biomechanics and electromyography (EMG) during jump landing in healthy men. Participants were categorized into induced (n=11) and non-induced (n=8) DKV groups based on changes in knee abduction moment after a fatigue task.
resultsCompared to the non-induced DKV group, the induced group exhibited a significantly reduced hip flexion angle (p=0.030), lower vertical ground reaction force (p=0.040), and decreased quadriceps peak EMG amplitude (p=0.008), along with a significant increase in hip internal rotation moment (p=0.001). Receiver operating characteristic analysis revealed that hip internal rotation moment had the highest discriminative power for classifying DKV occurrence, with an area under the curve (AUC) of 0.994 (95% CI: 0.960-1.000), followed by hip adduction moment (AUC = 0.896) and quadriceps peak amplitude (AUC = 0.883).
conclusionsFindings suggest that DKV occurrence after fatigue is associated with altered quadriceps activity and hip rotation mechanics. These insights may inform ACL injury prevention strategies.
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