ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2025
Poor knee strength is associated with higher incidence of knee injury in adolescent female football players: The Karolinska football injury cohort.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Effects of blood flow restriction combined with electrical stimulation on muscle functions and performance in university football players with knee osteoarthritis.Scientific reports · 2025Trial
- The effects of Tai Chi Chuan combined with unstable resistance training on knee muscle strength and dynamic balance in female college students: a randomized controlled study protocol.Frontiers in public health · 2026Article
- Rethinking knee injury prevention strategies: joint-by-joint training approach paradigm versus traditional focused knee strengthening.Biology of sport · 2025Article
- Poor knee strength is associated with higher incidence of knee injury in adolescent female football players: The Karolinska football injury cohort.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Running and Jumping After Muscle Fatigue in Subjects with a History of Knee Injury: What Are the Acute Effects of Wearing a Knee Brace on Biomechanics?Bioengineering (Basel, Switzerland) · 2025Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
purposeTo investigate the association between common measures of trunk and lower extremity range of motion (ROM), strength, the results of one-leg jump tests at baseline and the incidence of subsequent substantial knee injuries in adolescent female football players.
methodsPlayers were assessed at baseline regarding (1) ROM of trunk, hip, and ankle; (2) trunk, hip, and knee strength; and (3) one-leg jump tests. Players were prospectively monitored weekly for 1 year regarding knee injuries and the volume of matches and training. Hazard rate ratios (HRRs) and 95% confidence intervals (CIs) were calculated with Cox regression for the association between the baseline tests and the incidence of substantial knee injury (moderate/severe reduction in training volume or performance, or complete inability to participate in football). Exposures were categorized in tertiles (high, medium and low values). The highest tertile was used as reference.
results376 players were included without substantial knee injury at baseline (mean age, 13.9 ± 1.1 years), and 71 (19%) reported at least one substantial knee injury during the follow-up. Several associations were found; the strongest was that players in the lowest tertile of knee extension strength had a higher incidence of knee injuries than players in the highest tertile (HRR, 2.28; 95% CI, 1.20-4.38). Players in the lowest tertile of trunk rotation ROM in lunge position half-kneeling (HRR, 0.50; 95% CI, 0.27-0.94) had lower incidence of knee injuries than players in the highest tertile.
conclusionsPoor knee strength and high trunk ROM were associated with an increased incidence of substantial knee injury in adolescent female football players. Therefore, knee-strengthening exercises during season may be recommended. LEVEL OF EVIDENCE: Level II.
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