Can Technique Modification Training Reduce Knee Moments in a Landing Task?
Author(s)
Dempsey, Alasdair R
Elliott, Bruce C
Munro, Bridget J
Steele, Julie R
Lloyd, David G
Griffith University Author(s)
Year published
2014
Metadata
Show full item recordAbstract
Anterior cruciate ligament (ACL) injuries are costly. Sidestep technique training reduces knee moments that load the ACL. This study examined whether landing technique training alters knee moments. Nineteen team sport athletes completed the study. Motion analysis and ground reaction forces were recorded before and after 6-weeks of technique modification. An inverse dynamic model was used to calculate three-dimensional knee loading. Pre- and post-intervention scores were compared using paired t-tests. Maximal knee flexion angle during landing was increased following training. There was no change in valgus or flexion moments, ...
View more >Anterior cruciate ligament (ACL) injuries are costly. Sidestep technique training reduces knee moments that load the ACL. This study examined whether landing technique training alters knee moments. Nineteen team sport athletes completed the study. Motion analysis and ground reaction forces were recorded before and after 6-weeks of technique modification. An inverse dynamic model was used to calculate three-dimensional knee loading. Pre- and post-intervention scores were compared using paired t-tests. Maximal knee flexion angle during landing was increased following training. There was no change in valgus or flexion moments, but an increase in peak internal rotation moment. This increase in internal rotation moment may increase the risk of ACL injury. However, the increased angle at which the peak internal rotation moment occurred at follow up may mitigate any increase in injury risk by reducing load transmission.
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View more >Anterior cruciate ligament (ACL) injuries are costly. Sidestep technique training reduces knee moments that load the ACL. This study examined whether landing technique training alters knee moments. Nineteen team sport athletes completed the study. Motion analysis and ground reaction forces were recorded before and after 6-weeks of technique modification. An inverse dynamic model was used to calculate three-dimensional knee loading. Pre- and post-intervention scores were compared using paired t-tests. Maximal knee flexion angle during landing was increased following training. There was no change in valgus or flexion moments, but an increase in peak internal rotation moment. This increase in internal rotation moment may increase the risk of ACL injury. However, the increased angle at which the peak internal rotation moment occurred at follow up may mitigate any increase in injury risk by reducing load transmission.
View less >
Journal Title
Journal of Applied Biomechanics
Volume
30
Issue
2
Subject
Biomedical engineering
Mechanical engineering
Sports science and exercise
Biomechanics
Sports medicine