Sex differences in muscle activation patterns associated with anterior cruciate ligament injury during landing and cutting tasks: A systematic review

AbstractThis study determined anterior cruciate ligament (ACL) force and its contributors during a standardized drop-land-lateral jump task using a validated computational model. Healthy females (n=24) who were recreationally active performed drop-land-lateral jump and straight run tasks. Three-dimensional whole-body kinematics, ground reaction forces, and muscle activation patterns from eight lower limb muscles were collected concurrently during both tasks, but only the jump was analyzed computationally, with the run included for model calibration. External biomechanics, muscle-tendon unit kinematics, and muscle activation patterns were used to model lower limb muscle and ACL forces. Peak ACL force (2.3±0.5 BW) was observed at 13% of the stance phase during the drop-land-lateral jump task. The ACL force was primarily developed through the sagittal plane, and muscle was the dominant source of ACL loading. The gastrocnemii and quadriceps were main ACL antagonists (i.e., loaders), while hamstrings were the main ACL agonists (i.e., supporters).

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Effects of the menstrual cycle on lower-limb biomechanics, neuromuscular control, and anterior cruciate ligament injury risk: a systematic review

Muscles Ligaments and Tendons Journal ◽

10.32098/mltj.01.2017.17 ◽

2019 ◽

Vol 07 (01) ◽

pp. 136

Author(s):

V. Balachandar ◽

J.-L. Marciniak ◽

O. Wall ◽

C. Balachandar

Keyword(s):

Systematic Review ◽

Anterior Cruciate Ligament ◽

Menstrual Cycle ◽

Anterior Cruciate Ligament Injury ◽

Lower Limb ◽

Injury Risk ◽

Cruciate Ligament ◽

Neuromuscular Control ◽

Ligament Injury ◽

Anterior Cruciate

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Evidence too weak to guide surgical treatment decisions for anterior cruciate ligament injury: a systematic review of the risk of new meniscal tears after anterior cruciate ligament injury

British Journal of Sports Medicine ◽

10.1136/bjsports-2019-100956 ◽

2020 ◽

Vol 54 (9) ◽

pp. 520-527 ◽

Cited By ~ 2

Author(s):

Guri Ranum Ekås ◽

Clare L Ardern ◽

Hege Grindem ◽

Lars Engebretsen

Keyword(s):

Systematic Review ◽

Anterior Cruciate Ligament ◽

Surgical Treatment ◽

Anterior Cruciate Ligament Injury ◽

Cruciate Ligament ◽

Acl Injury ◽

Ligament Injury ◽

Meniscal Tears ◽

Anterior Cruciate

ObjectiveTo investigate the risk of new meniscal tears after treatment for anterior cruciate ligament (ACL) injury, in children and adults with and without ACL reconstruction.DesignPrognosis systematic review (PROSPERO registration number CRD42016036788).MethodsWe searched Embase, Ovid Medline, Cochrane, CINAHL, SPORTDiscus, PEDro and Google Scholar from inception to 3rd May 2018. Eligible articles included patients with ACL injury (diagnosis confirmed by MRI and/or diagnostic arthroscopy), reported the number of meniscal tears at the time of ACL injury diagnosis/start of treatment and reported the number of new meniscal tears that subsequently occurred. Articles with fewer than 20 patients at follow-up, and articles limited to ACL revision surgery or multi-ligament knee injuries were excluded. Two independent reviewers screened articles, assessed eligibility, assessed risk of bias and extracted data. We judged the certainty of evidence using the Grading of Recommendations Assessment Development and Evaluation (GRADE) working group methodology.ResultsOf 75 studies included in the systematic review, 54 studies with 9624 patients and 501 new meniscal tears were appropriate for quantitative analysis. Heterogeneity precluded data pooling. The risk of new meniscal tears was 0%–21% when follow-up was <2 years, 0%–29% when follow-up was 2 to 5 years, 5%–52% when follow-up was 5 to 10 years and 4%–31% when follow-up was longer than 10 years. The proportion of studies with high risk of selection, misclassification and detection bias was 84%, 69% and 68%, respectively. Certainty of evidence was very low.ConclusionNew meniscal tears occurred in 0%–52% of patients between 4 months and 20 years (mean 4.9±4.4 years) following treatment for ACL injury. The certainty of evidence was too low to guide surgical treatment decisions. This review cannot conclude that the incidence of new meniscal tears is lower if ACL injury is treated with surgery compared with treatment with rehabilitation only.

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