Sidestep cutting technique and knee abduction loading: implications for ACL prevention exercises

Kristianslund, Eirik; Faul, Oliver; Bahr, Roald; Myklebust, Grethe; Krosshaug, Tron

doi:10.1136/bjsports-2012-091370

Cited by 170 publications

(258 citation statements)

References 30 publications

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“…Sigward and Powers (2007) supports these findings with initial hip abduction angle (greater lateral leg plant distance) significantly related to peak knee abduction moments in 61 female soccer players performing a 45°cut-ting task. Similarly, Kristianlunds, Faul, Bahr, Myklebust, and Krosshaug (2014) in an analysis of 123 female handball players performing a sports specific side-step cut found cut width (analogous to lateral leg plant distance) was a significant predictor of peak knee abduction moments.…”

Section: Introductionmentioning

confidence: 91%

“…Lateral trunk flexion has also been associated with increasing knee abduction moments during planned and unplanned cuts of 45° (Dempsey et al, 2007(Dempsey et al, , 2009Jamison, Pan, & Chaudhari, 2012) and 67° (Kristianlunds et al, 2014). Laterally flexing the trunk, toward the planted leg, shifts weight laterally creating a more laterally directed force vector, an increased moment arm and greater knee abduction moments (Dempsey et al, 2007(Dempsey et al, , 2009.…”

Section: Introductionmentioning

confidence: 99%

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Technique determinants of knee joint loads during cutting in female soccer players

Jones

Herrington

Graham-Smith

2015

Human Movement Science

130

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Technique determinants of knee joint loads during cutting in female soccer players

Jones

Herrington

Graham-Smith

2015

Human Movement Science

130

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“…Marker coordinate and force data were filtered using a Butterworth 4 th order low pass filter with a 20 Hz cut-off frequency [16]. Touch-down and toe-off events were identified using a threshold of 20 N. For the comparison of modelling techniques, DK and IK kinematics were used separately to estimate the net external moments using inverse dynamics.…”

Section: Data and Statistical Analysismentioning

confidence: 99%

How reliable are knee kinematics and kinetics during side-cutting manoeuvres?

et al. 2015

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Introduction: Side-cutting tasks are commonly used in dynamic assessment of ACL injury risk, but only limited information is available concerning the reliability of knee loading parameters. The aim of this study was to investigate the reliability of side-cutting data with additional focus on modelling approaches and task execution variables. Methods: Each subject (n=8) attended six testing sessions conducted by two observers. Kinematic and kinetic data of 45° side-cutting tasks was collected. Inter-trial, inter-session, inter-observer variability and observer/trial ratios were calculated at every time-point of normalised stance, for data derived from two modelling approaches. Variation in task execution variables was regressed against that of temporal profiles of relevant knee data using one-dimensional statistical parametric mapping. Results: Variability in knee kinematics was consistently low across the timeseries waveform (≤5 °), but knee kinetic variability was high (31.8, 24.1 and 16.9 Nm for sagittal, frontal and transverse planes, respectively) in the weight acceptance phase of the side-cutting task. Calculations conveyed consistently moderate-to-good measurement reliability. Inverse kinematic modelling reduced the variability in sagittal (~6 Nm) and frontal planes (~10 Nm) compared to direct kinematic modelling. Variation in task execution variables did not explain any knee data variability. Conclusion: Side-cutting data appears to be reliably measured, however high knee moment variability exhibited in all planes, particularly in the early stance phase, suggests cautious interpretation towards ACL injury mechanics. Such variability may be inherent to the dynamic nature of the side-cutting task or experimental issues not yet known.

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“…In addition, exaggerated knee flexion was stressed in order to avoid an extended or hyperextended position. Although not measured in our current study, we and many investigators have noted decreased ground-reaction forces and improved lower extremity alignment on landing and during cutting when these techniques are used that may decrease the risk of lower extremity injury [22,33,[84][85][86][87].…”

Section: Discussionmentioning

confidence: 74%

Neuromuscular Retraining in Female Adolescent Athletes: Effect on Athletic Performance Indices and Noncontact Anterior Cruciate Ligament Injury Rates

Noyes

Barber-Westin

2015

Sports

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While many anterior cruciate ligament (ACL) prevention programs have been published, few have achieved significant reductions in injury rates and improvements in athletic performance indices; both of which may increase compliance and motivation of athletes to participate. A supervised neuromuscular retraining program (18 sessions) was developed, aimed at achieving both of these objectives. The changes in neuromuscular indices were measured after training in 1000 female athletes aged 13-18 years, and the noncontact ACL injury rate in 700 of these trained athletes was compared with that of 1120 control athletes. There were significant improvements in the drop-jump test, (p < 0.0001, effect size [ES] 0.97), the single-leg triple crossover hop (p < 0.0001, ES 0.47), the t-test (p < 0.0001, ES 0.64), the multi-stage fitness test (p < 0.0001, ES 0.57), hamstring strength (p < 0.0001), and quadriceps strength (p < 0.01). The trained athletes had a significant reduction in the noncontact ACL injury incidence rate compared with the controls (1 ACL injury in 36,724 athlete-exposures [0.03] and 13 ACL injuries in 61,244 exposures [0.21], respectively, p = 0.03). The neuromuscular retraining program was effective in reducing noncontact ACL injury rate and improving athletic performance indicators. OPEN ACCESSSports 2015, 3 57

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Sidestep cutting technique and knee abduction loading: implications for ACL prevention exercises

Abstract: Lower knee abduction loads during sidestep cutting may be achieved if cuts are performed as narrow cuts with low knee valgus and toe landings. These factors may be targeted in ACL injury prevention programmes.

Cited by 170 publications

References 30 publications

Technique determinants of knee joint loads during cutting in female soccer players

Technique determinants of knee joint loads during cutting in female soccer players

How reliable are knee kinematics and kinetics during side-cutting manoeuvres?

Neuromuscular Retraining in Female Adolescent Athletes: Effect on Athletic Performance Indices and Noncontact Anterior Cruciate Ligament Injury Rates

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