Military Movement Training Program Improves Jump-Landing Mechanics Associated With Anterior Cruciate Ligament Injury Risk

2013 ◽  
Vol 22 (01) ◽  
pp. 66-70 ◽  
Author(s):  
Brett D. Owens ◽  
Kenneth L. Cameron ◽  
Michele L. Duffey ◽  
Donna Vargas ◽  
Michael J. Duffey ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Training Program ◽  
Anterior Cruciate Ligament Injury ◽  
Injury Risk ◽  
Cruciate Ligament ◽  
Ligament Injury ◽  
Jump Landing ◽  
Movement Training ◽  
Landing Mechanics ◽  
Anterior Cruciate

A Biomechanical Comparison of Single-Leg Landing and Unplanned Sidestepping

2018 ◽  
Vol 39 (08) ◽  
pp. 636-645 ◽  
Author(s):  
Chamnan Chinnasee ◽  
Gillian Weir ◽  
Siriporn Sasimontonkul ◽  
Jacqueline Alderson ◽  
Cyril Donnelly
Keyword(s):  
Anterior Cruciate Ligament ◽  
Knee Joint ◽  
Anterior Cruciate Ligament Injury ◽  
Injury Risk ◽  
Cruciate Ligament ◽  
Testing Procedure ◽  
Ligament Injury ◽  
Joint Moments ◽  
Jump Landing ◽  
Anterior Cruciate

AbstractUnplanned sidestepping and single-leg landing have both been used to screen athletes for injury risk in sport. The aim of this study was to directly compare the lower limb mechanics of three single-leg landing tasks and an unplanned sidestepping task. Thirteen elite female team sport athletes completed a series of non-contact single-leg drop landings, single-leg countermovement jumps, single-leg jump landings and unplanned sidestepping in a randomized counterbalanced design. Three dimensional kinematics (250 Hz) and ground reaction force (2,000 Hz) data with a participant specific lower limb skeletal model were used to calculate and compare hip, knee and ankle joint kinematics, peak joint moments, instantaneous joint power and joint work during the weight acceptance phase of each sporting task (α=0.05). Peak knee joint moments and relevant injury risk thresholds were used to classify each athlete's anterior cruciate ligament injury risk during unplanned sidestepping and single-leg jump landing. Results showed that peak joint moments, power and work were greater during the single-leg jump landing task when compared to the single-leg drop landings and single-leg countermovement jumps tasks. Peak frontal and sagittal plane knee joint moments, knee joint power, as well as hip and knee joint work were greater during unplanned sidestepping when compared to the landing tasks. Peak ankle joint moments, power and work were greater during the landing tasks when compared to unplanned sidestepping. For 4 of the 13 athletes tested, their anterior cruciate ligament injury risk classification changed depending on whether they performed an unplanned sidestepping or single-leg jump landing testing procedure. To summarize, a single-leg jump landing testing procedure places a larger mechanical on the ankle joint when compared to single-leg drop landings, single-leg countermovement jumps and unplanned sidestepping. An unplanned sidestepping testing procedure places a larger mechanical demand on the knee joint when compared to single-leg landing tasks. Both unplanned sidestepping and single-leg jump landing testing procedures are recommended for classifying an athlete's anterior cruciate ligament injury risk in sport.

Anterior cruciate ligament injury risk factors in football

2019 ◽  
Vol 59 (10) ◽  
Author(s):  
Gian Nicola Bisciotti ◽  
Karim Chamari ◽  
Emanuele Cena ◽  
Andrea Bisciotti ◽  
Alessandro Bisciotti ◽  
...  
Keyword(s):  
Risk Factors ◽  
Anterior Cruciate Ligament ◽  
Anterior Cruciate Ligament Injury ◽  
Injury Risk ◽  
Cruciate Ligament ◽  
Ligament Injury ◽  
Injury Risk Factors ◽  
Anterior Cruciate

Biomechanical Measures of Neuromuscular Control and Valgus Loading of the Knee Predict Anterior Cruciate Ligament Injury Risk in Female Athletes: A Prospective Study

2005 ◽  
Vol 33 (4) ◽  
pp. 492-501 ◽  
Author(s):  
Timothy E. Hewett ◽  
Gregory D. Myer ◽  
Kevin R. Ford ◽  
Robert S. Heidt ◽  
Angelo J. Colosimo ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Anterior Cruciate Ligament Injury ◽  
Injury Risk ◽  
Female Athletes ◽  
Cruciate Ligament ◽  
Neuromuscular Control ◽  
Ligament Injury ◽  
Knee Abduction ◽  
Anterior Cruciate ◽  
Dynamic Valgus

Background Female athletes participating in high-risk sports suffer anterior cruciate ligament injury at a 4- to 6-fold greater rate than do male athletes. Hypothesis Prescreened female athletes with subsequent anterior cruciate ligament injury will demonstrate decreased neuromuscular control and increased valgus joint loading, predicting anterior cruciate ligament injury risk. Study Design Cohort study; Level of evidence, 2. Methods There were 205 female athletes in the high-risk sports of soccer, basketball, and volleyball prospectively measured for neuromuscular control using 3-dimensional kinematics (joint angles) and joint loads using kinetics (joint moments) during a jump-landing task. Analysis of variance as well as linear and logistic regression were used to isolate predictors of risk in athletes who subsequently ruptured the anterior cruciate ligament. Results Nine athletes had a confirmed anterior cruciate ligament rupture; these 9 had significantly different knee posture and loading compared to the 196 who did not have anterior cruciate ligament rupture. Knee abduction angle (P <. 05) at landing was 8° greater in anterior cruciate ligament-injured than in uninjured athletes. Anterior cruciate ligament-injured athletes had a 2.5 times greater knee abduction moment (P <. 001) and 20% higher ground reaction force (P <. 05), whereas stance time was 16% shorter; hence, increased motion, force, and moments occurred more quickly. Knee abduction moment predicted anterior cruciate ligament injury status with 73% specificity and 78% sensitivity; dynamic valgus measures showed a predictive r2 of 0.88. Conclusion Knee motion and knee loading during a landing task are predictors of anterior cruciate ligament injury risk in female athletes. Clinical Relevance Female athletes with increased dynamic valgus and high abduction loads are at increased risk of anterior cruciate ligament injury. The methods developed may be used to monitor neuromuscular control of the knee joint and may help develop simpler measures of neuromuscular control that can be used to direct female athletes to more effective, targeted interventions.

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