Dynamic knee control and movement strategies in athletes and non‐athletes in side hops: Implications for knee injury
Athletes exposed to rapid maneuvers need a high level of dynamic knee stability and robustness, while also controlling whole body movement, to decrease the risk of non‐contact knee injury. The effects of high‐level athletic training on such measures of movement control have not, however, been thorou...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6850355/ https://www.ncbi.nlm.nih.gov/pubmed/30972848 http://dx.doi.org/10.1111/sms.13432 |
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author | Markström, Jonas L. Grip, Helena Schelin, Lina Häger, Charlotte K. |
author_facet | Markström, Jonas L. Grip, Helena Schelin, Lina Häger, Charlotte K. |
author_sort | Markström, Jonas L. |
collection | PubMed |
description | Athletes exposed to rapid maneuvers need a high level of dynamic knee stability and robustness, while also controlling whole body movement, to decrease the risk of non‐contact knee injury. The effects of high‐level athletic training on such measures of movement control have not, however, been thoroughly evaluated. This study investigated whether elite athletes (who regularly perform knee‐specific neuromuscular training) show greater dynamic knee robustness and/or different movement strategies than non‐athletic controls, in relation to overall knee function. Thirty‐nine women (19 athletes, 20 controls) performed standardized rebound side hops (SRSH) while a motion capture system synchronized with two force plates registered three‐dimensional trunk, hip, and knee joint angles and moments. Dynamic knee robustness was evaluated using finite helical axis (FHA) inclination angles extracted from knee rotation intervals of 10°, analyzed with independent t tests. Angle and moment curves were analyzed with inferential methods for functional data. Athletes had superior knee function (less laxity, greater hop performances, and strength) but presented similar FHA inclination angles to controls. Movement strategies during the landing phase differed; athletes presented larger (a) hip flexion angles (during 9%‐29% of the phase), (b) hip adduction moments (59%‐99%), (c) hip internal rotation moments (83%‐89%), and (d) knee flexion moments (79%‐93%). Thus, elite athletes may have a greater ability than non‐athletes to keep the knee robust while performing SRSH more efficiently through increased engagement of the hip. However, dynamic knee robustness associated with lower FHA inclination angles still show room for improvement, thus possibly decreasing knee injury risk. |
format | Online Article Text |
id | pubmed-6850355 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-68503552019-11-18 Dynamic knee control and movement strategies in athletes and non‐athletes in side hops: Implications for knee injury Markström, Jonas L. Grip, Helena Schelin, Lina Häger, Charlotte K. Scand J Med Sci Sports Original Articles Athletes exposed to rapid maneuvers need a high level of dynamic knee stability and robustness, while also controlling whole body movement, to decrease the risk of non‐contact knee injury. The effects of high‐level athletic training on such measures of movement control have not, however, been thoroughly evaluated. This study investigated whether elite athletes (who regularly perform knee‐specific neuromuscular training) show greater dynamic knee robustness and/or different movement strategies than non‐athletic controls, in relation to overall knee function. Thirty‐nine women (19 athletes, 20 controls) performed standardized rebound side hops (SRSH) while a motion capture system synchronized with two force plates registered three‐dimensional trunk, hip, and knee joint angles and moments. Dynamic knee robustness was evaluated using finite helical axis (FHA) inclination angles extracted from knee rotation intervals of 10°, analyzed with independent t tests. Angle and moment curves were analyzed with inferential methods for functional data. Athletes had superior knee function (less laxity, greater hop performances, and strength) but presented similar FHA inclination angles to controls. Movement strategies during the landing phase differed; athletes presented larger (a) hip flexion angles (during 9%‐29% of the phase), (b) hip adduction moments (59%‐99%), (c) hip internal rotation moments (83%‐89%), and (d) knee flexion moments (79%‐93%). Thus, elite athletes may have a greater ability than non‐athletes to keep the knee robust while performing SRSH more efficiently through increased engagement of the hip. However, dynamic knee robustness associated with lower FHA inclination angles still show room for improvement, thus possibly decreasing knee injury risk. John Wiley and Sons Inc. 2019-04-25 2019-08 /pmc/articles/PMC6850355/ /pubmed/30972848 http://dx.doi.org/10.1111/sms.13432 Text en © 2019 The Authors. Scandinavian Journal of Medicine & Science In Sports Published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Articles Markström, Jonas L. Grip, Helena Schelin, Lina Häger, Charlotte K. Dynamic knee control and movement strategies in athletes and non‐athletes in side hops: Implications for knee injury |
title | Dynamic knee control and movement strategies in athletes and non‐athletes in side hops: Implications for knee injury |
title_full | Dynamic knee control and movement strategies in athletes and non‐athletes in side hops: Implications for knee injury |
title_fullStr | Dynamic knee control and movement strategies in athletes and non‐athletes in side hops: Implications for knee injury |
title_full_unstemmed | Dynamic knee control and movement strategies in athletes and non‐athletes in side hops: Implications for knee injury |
title_short | Dynamic knee control and movement strategies in athletes and non‐athletes in side hops: Implications for knee injury |
title_sort | dynamic knee control and movement strategies in athletes and non‐athletes in side hops: implications for knee injury |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6850355/ https://www.ncbi.nlm.nih.gov/pubmed/30972848 http://dx.doi.org/10.1111/sms.13432 |
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