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Anticipatory effects on side-step cutting biomechanics in Women’s Australian Football League players
OBJECTIVES: Reactive side-step cutting manoeuvres are linked to anterior cruciate ligament (ACL) injuries in Women’s Australian Football League (AFLW) matches. We explored knee joint moments and ground reaction forces (GRFs) in AFLW players when performing anticipated and unanticipated side-stepping...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BMJ Publishing Group
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10277520/ https://www.ncbi.nlm.nih.gov/pubmed/37342786 http://dx.doi.org/10.1136/bmjsem-2023-001587 |
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author | Rolley, Tess Gill, Stephen D Keast, Meghan Reade, Tom Page, Richard Bonacci, Jason Stella, Julian Johnson, Brett Fox, Aaron |
author_facet | Rolley, Tess Gill, Stephen D Keast, Meghan Reade, Tom Page, Richard Bonacci, Jason Stella, Julian Johnson, Brett Fox, Aaron |
author_sort | Rolley, Tess |
collection | PubMed |
description | OBJECTIVES: Reactive side-step cutting manoeuvres are linked to anterior cruciate ligament (ACL) injuries in Women’s Australian Football League (AFLW) matches. We explored knee joint moments and ground reaction forces (GRFs) in AFLW players when performing anticipated and unanticipated side-stepping. METHODS: Sixteen AFLW players (age=25.3±4.2 years; height=1.71±0.06 m; mass=68.4±4.7 kg) completed anticipated and unanticipated side-stepping trials during which full-body three-dimensional kinematics and kinetics were recorded. One-dimensional statistical parametric mapping paired t-tests were used to compare three-dimensional knee moments during weight acceptance and GRFs during the stance phase between anticipated and unanticipated conditions. RESULTS: Unanticipated side-stepping incurred lower knee flexion (18%–39% of stance, p<0.01) and abduction (11%–24% of stance, p<0.01) moments. Braking and propulsive GRFs were lower and higher, respectively, across the majority of stance phase (6%–90% of stance, p<0.01) in unanticipated side-stepping. Vertical GRFs were lower in unanticipated side-stepping in the early stance phase (14%–29% of stance, p<0.01). CONCLUSION: Contrary to existing literature, AFLW players exhibited knee joint moments associated with reduced ACL loading when performing unanticipated side-stepping. Players appeared to adopt a ‘cautious’ approach to the unanticipated side-step (ie, decelerating at the change of direction), by reducing braking and vertical GRFs in the early stance phase of cutting. This approach may be implausible to employ or detrimental to performance during matches. AFLW ACL injury prevention programmes may be enhanced with greater exposure to scenarios that replicate reactive match-play demands when aiming to improve side-stepping biomechanics. |
format | Online Article Text |
id | pubmed-10277520 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | BMJ Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-102775202023-06-20 Anticipatory effects on side-step cutting biomechanics in Women’s Australian Football League players Rolley, Tess Gill, Stephen D Keast, Meghan Reade, Tom Page, Richard Bonacci, Jason Stella, Julian Johnson, Brett Fox, Aaron BMJ Open Sport Exerc Med Original Research OBJECTIVES: Reactive side-step cutting manoeuvres are linked to anterior cruciate ligament (ACL) injuries in Women’s Australian Football League (AFLW) matches. We explored knee joint moments and ground reaction forces (GRFs) in AFLW players when performing anticipated and unanticipated side-stepping. METHODS: Sixteen AFLW players (age=25.3±4.2 years; height=1.71±0.06 m; mass=68.4±4.7 kg) completed anticipated and unanticipated side-stepping trials during which full-body three-dimensional kinematics and kinetics were recorded. One-dimensional statistical parametric mapping paired t-tests were used to compare three-dimensional knee moments during weight acceptance and GRFs during the stance phase between anticipated and unanticipated conditions. RESULTS: Unanticipated side-stepping incurred lower knee flexion (18%–39% of stance, p<0.01) and abduction (11%–24% of stance, p<0.01) moments. Braking and propulsive GRFs were lower and higher, respectively, across the majority of stance phase (6%–90% of stance, p<0.01) in unanticipated side-stepping. Vertical GRFs were lower in unanticipated side-stepping in the early stance phase (14%–29% of stance, p<0.01). CONCLUSION: Contrary to existing literature, AFLW players exhibited knee joint moments associated with reduced ACL loading when performing unanticipated side-stepping. Players appeared to adopt a ‘cautious’ approach to the unanticipated side-step (ie, decelerating at the change of direction), by reducing braking and vertical GRFs in the early stance phase of cutting. This approach may be implausible to employ or detrimental to performance during matches. AFLW ACL injury prevention programmes may be enhanced with greater exposure to scenarios that replicate reactive match-play demands when aiming to improve side-stepping biomechanics. BMJ Publishing Group 2023-06-14 /pmc/articles/PMC10277520/ /pubmed/37342786 http://dx.doi.org/10.1136/bmjsem-2023-001587 Text en © Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) . |
spellingShingle | Original Research Rolley, Tess Gill, Stephen D Keast, Meghan Reade, Tom Page, Richard Bonacci, Jason Stella, Julian Johnson, Brett Fox, Aaron Anticipatory effects on side-step cutting biomechanics in Women’s Australian Football League players |
title | Anticipatory effects on side-step cutting biomechanics in Women’s Australian Football League players |
title_full | Anticipatory effects on side-step cutting biomechanics in Women’s Australian Football League players |
title_fullStr | Anticipatory effects on side-step cutting biomechanics in Women’s Australian Football League players |
title_full_unstemmed | Anticipatory effects on side-step cutting biomechanics in Women’s Australian Football League players |
title_short | Anticipatory effects on side-step cutting biomechanics in Women’s Australian Football League players |
title_sort | anticipatory effects on side-step cutting biomechanics in women’s australian football league players |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10277520/ https://www.ncbi.nlm.nih.gov/pubmed/37342786 http://dx.doi.org/10.1136/bmjsem-2023-001587 |
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