File(s) under permanent embargo
Exploring individual adaptations to an anterior cruciate ligament injury prevention programme
journal contribution
posted on 2018-01-01, 00:00 authored by Aaron FoxAaron Fox, Jason BonacciJason Bonacci, S G McLean, Natalie SaundersNatalie SaundersBACKGROUND: Individual responses to anterior cruciate ligament injury prevention programmes (ACL IPPs) have received little attention. This study examined the effects of an ACL IPP on neuromuscular control and lower limb biomechanics during landing at the group and individual levels. METHODS: Sixteen female athletes were randomly allocated to training (n=8) or control (n=8) groups. Electromyography, and three-dimensional kinematic and kinetic data were collected during landing at two testing sessions. Repeated measures ANOVA and effect sizes (Cohen's d) examined the effect of the IPP at the group and individual levels. A sub-group analysis comparing the effect of the IPP on 'high-' (i.e. large peak knee abduction moment at baseline) versus 'low-risk' individuals was also conducted. RESULTS: At the group level; the IPP increased activation of the medial hamstrings prior to landing (p<0.001; d=0.264) and the medial gastrocnemius at landing (p<0.001; d=0.426), and increased hip external rotation early after initial contact (p<0.001; d=0.476). Variable adaptations were seen across individuals within the training group for all variables (p<0.001). The IPP had a large effect in reducing frontal plane knee moments for 'high-risk' individuals (d>0.91), however these results did not reach statistical significance (p>0.05). CONCLUSIONS: The IPP induced adaptations during landing, however, individual data revealed dissimilar responses to the programme. Individuals displaying a pre-existing high-risk strategy may incur greater benefits from IPPs, yet only if the programme targets the relevant high-risk strategy.
History
Journal
KneeVolume
25Issue
1Pagination
83 - 98Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0968-0160eISSN
1873-5800Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2017, Elsevier B.V.Usage metrics
Categories
No categories selectedKeywords
Anterior cruciate ligamentBiomechanicsFemale athletesInjury preventionNeuromuscular controlScience & TechnologyLife Sciences & BiomedicineOrthopedicsSport SciencesSurgeryNEUROMUSCULAR TRAINING-PROGRAMSIDESTEP CUTTING TECHNIQUELOWER-LIMB BIOMECHANICSJUMP-LANDING TECHNIQUEWHOLE-BODY KINEMATICSKNEE VALGUS MOMENTACL RISK-FACTORSMUSCLE SYNERGIESDYNAMIC STABILIZATIONMOVEMENT STRATEGY
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC