Cargando…

Drop Jump Asymmetry is Associated with Reduced Sprint and Change-of-Direction Speed Performance in Adult Female Soccer Players

Studies that examine the effects of inter-limb asymmetry on measures of physical performance are scarce, especially in adult female populations. The aim of the present study was to establish the relationship between inter-limb asymmetry and speed and change-of-direction speed (CODS) in adult female...

Descripción completa

Detalles Bibliográficos
Autores principales: Bishop, Chris, Turner, Anthony, Maloney, Sean, Lake, Jason, Loturco, Irineu, Bromley, Tom, Read, Paul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6359266/
https://www.ncbi.nlm.nih.gov/pubmed/30669686
http://dx.doi.org/10.3390/sports7010029
_version_ 1783392201488728064
author Bishop, Chris
Turner, Anthony
Maloney, Sean
Lake, Jason
Loturco, Irineu
Bromley, Tom
Read, Paul
author_facet Bishop, Chris
Turner, Anthony
Maloney, Sean
Lake, Jason
Loturco, Irineu
Bromley, Tom
Read, Paul
author_sort Bishop, Chris
collection PubMed
description Studies that examine the effects of inter-limb asymmetry on measures of physical performance are scarce, especially in adult female populations. The aim of the present study was to establish the relationship between inter-limb asymmetry and speed and change-of-direction speed (CODS) in adult female soccer players. Sixteen adult players performed a preseason test battery consisting of unilateral countermovement jump (CMJ), unilateral drop jump (DJ), 10 m, 30 m, and 505 CODS tests. Inter-limb asymmetry was calculated using a standard percentage difference equation for jump and CODS tests, and Pearson’s r correlations were used to establish a relationship between asymmetry and physical performance as well as asymmetry scores themselves across tests. Jump-height asymmetry from the CMJ (8.65%) and DJ (9.16%) tests were significantly greater (p < 0.05) than asymmetry during the 505 test (2.39%). CMJ-height asymmetry showed no association with speed or CODS. However, DJ asymmetries were significantly associated with slower 10 m (r = 0.52; p < 0.05), 30 m (r = 0.58; p < 0.05), and 505 (r = 0.52–0.66; p < 0.05) performance. No significant relationships were present between asymmetry scores across tests. These findings suggest that the DJ is a useful test for detecting existent between-limb asymmetry that might in turn be detrimental to speed and CODS performance. Furthermore, the lack of relationships present between different asymmetry scores indicates the individual nature of asymmetry and precludes the use of a single test for the assessment of inter-limb differences.
format Online
Article
Text
id pubmed-6359266
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-63592662019-02-11 Drop Jump Asymmetry is Associated with Reduced Sprint and Change-of-Direction Speed Performance in Adult Female Soccer Players Bishop, Chris Turner, Anthony Maloney, Sean Lake, Jason Loturco, Irineu Bromley, Tom Read, Paul Sports (Basel) Article Studies that examine the effects of inter-limb asymmetry on measures of physical performance are scarce, especially in adult female populations. The aim of the present study was to establish the relationship between inter-limb asymmetry and speed and change-of-direction speed (CODS) in adult female soccer players. Sixteen adult players performed a preseason test battery consisting of unilateral countermovement jump (CMJ), unilateral drop jump (DJ), 10 m, 30 m, and 505 CODS tests. Inter-limb asymmetry was calculated using a standard percentage difference equation for jump and CODS tests, and Pearson’s r correlations were used to establish a relationship between asymmetry and physical performance as well as asymmetry scores themselves across tests. Jump-height asymmetry from the CMJ (8.65%) and DJ (9.16%) tests were significantly greater (p < 0.05) than asymmetry during the 505 test (2.39%). CMJ-height asymmetry showed no association with speed or CODS. However, DJ asymmetries were significantly associated with slower 10 m (r = 0.52; p < 0.05), 30 m (r = 0.58; p < 0.05), and 505 (r = 0.52–0.66; p < 0.05) performance. No significant relationships were present between asymmetry scores across tests. These findings suggest that the DJ is a useful test for detecting existent between-limb asymmetry that might in turn be detrimental to speed and CODS performance. Furthermore, the lack of relationships present between different asymmetry scores indicates the individual nature of asymmetry and precludes the use of a single test for the assessment of inter-limb differences. MDPI 2019-01-21 /pmc/articles/PMC6359266/ /pubmed/30669686 http://dx.doi.org/10.3390/sports7010029 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bishop, Chris
Turner, Anthony
Maloney, Sean
Lake, Jason
Loturco, Irineu
Bromley, Tom
Read, Paul
Drop Jump Asymmetry is Associated with Reduced Sprint and Change-of-Direction Speed Performance in Adult Female Soccer Players
title Drop Jump Asymmetry is Associated with Reduced Sprint and Change-of-Direction Speed Performance in Adult Female Soccer Players
title_full Drop Jump Asymmetry is Associated with Reduced Sprint and Change-of-Direction Speed Performance in Adult Female Soccer Players
title_fullStr Drop Jump Asymmetry is Associated with Reduced Sprint and Change-of-Direction Speed Performance in Adult Female Soccer Players
title_full_unstemmed Drop Jump Asymmetry is Associated with Reduced Sprint and Change-of-Direction Speed Performance in Adult Female Soccer Players
title_short Drop Jump Asymmetry is Associated with Reduced Sprint and Change-of-Direction Speed Performance in Adult Female Soccer Players
title_sort drop jump asymmetry is associated with reduced sprint and change-of-direction speed performance in adult female soccer players
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6359266/
https://www.ncbi.nlm.nih.gov/pubmed/30669686
http://dx.doi.org/10.3390/sports7010029
work_keys_str_mv AT bishopchris dropjumpasymmetryisassociatedwithreducedsprintandchangeofdirectionspeedperformanceinadultfemalesoccerplayers
AT turneranthony dropjumpasymmetryisassociatedwithreducedsprintandchangeofdirectionspeedperformanceinadultfemalesoccerplayers
AT maloneysean dropjumpasymmetryisassociatedwithreducedsprintandchangeofdirectionspeedperformanceinadultfemalesoccerplayers
AT lakejason dropjumpasymmetryisassociatedwithreducedsprintandchangeofdirectionspeedperformanceinadultfemalesoccerplayers
AT loturcoirineu dropjumpasymmetryisassociatedwithreducedsprintandchangeofdirectionspeedperformanceinadultfemalesoccerplayers
AT bromleytom dropjumpasymmetryisassociatedwithreducedsprintandchangeofdirectionspeedperformanceinadultfemalesoccerplayers
AT readpaul dropjumpasymmetryisassociatedwithreducedsprintandchangeofdirectionspeedperformanceinadultfemalesoccerplayers