Cargando…
Countermovement Jump Force–Time Curve Analysis between Strength-Matched Male and Female Soccer Players
The purpose of this study was to compare countermovement jump force–time measures between strength-matched male and female soccer players. Males (n = 11) and females (n = 11) were strength-matched via isometric mid-thigh pull testing, whereby peak force values were normalised to body mass. Subjects...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8949185/ https://www.ncbi.nlm.nih.gov/pubmed/35329039 http://dx.doi.org/10.3390/ijerph19063352 |
_version_ | 1784674834488229888 |
---|---|
author | Thomas, Christopher Jones, Paul A. Dos’Santos, Thomas |
author_facet | Thomas, Christopher Jones, Paul A. Dos’Santos, Thomas |
author_sort | Thomas, Christopher |
collection | PubMed |
description | The purpose of this study was to compare countermovement jump force–time measures between strength-matched male and female soccer players. Males (n = 11) and females (n = 11) were strength-matched via isometric mid-thigh pull testing, whereby peak force values were normalised to body mass. Subjects performed three maximal-effort countermovement jumps (CMJs) on a force platform from which a range of kinetic and kinematic variables were calculated via forward dynamics. Thereafter, differences in gross measures were examined via independent t-tests, while differences in force–, power–, velocity–, and displacement–time curves throughout the entire CMJ were analysed using statistical parametric mapping (SPM). Jump height, reactive strength index modified, propulsion mean force, propulsion impulse, and propulsion mean velocity were all greater for males (d = 1.50 to 3.07). Relative force– and velocity–time curves were greater for males at 86–93% (latter half of the concentric phase) and 85–100% (latter half of the concentric phase) of normalized movement time, respectively. Time to take-off, braking phase time, braking mean velocity and impulse, propulsion phase time and centre of mass displacement were similar between males and females (d = −0.23 to 0.97). This research demonstrates the strength of SPM to identify changes between entire force-time curves. Continued development and the use of SPM analysis could present the opportunity for a refined comparison of strength-matched male and female CMJ performance with the analysis of entire force–time curves. |
format | Online Article Text |
id | pubmed-8949185 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-89491852022-03-26 Countermovement Jump Force–Time Curve Analysis between Strength-Matched Male and Female Soccer Players Thomas, Christopher Jones, Paul A. Dos’Santos, Thomas Int J Environ Res Public Health Article The purpose of this study was to compare countermovement jump force–time measures between strength-matched male and female soccer players. Males (n = 11) and females (n = 11) were strength-matched via isometric mid-thigh pull testing, whereby peak force values were normalised to body mass. Subjects performed three maximal-effort countermovement jumps (CMJs) on a force platform from which a range of kinetic and kinematic variables were calculated via forward dynamics. Thereafter, differences in gross measures were examined via independent t-tests, while differences in force–, power–, velocity–, and displacement–time curves throughout the entire CMJ were analysed using statistical parametric mapping (SPM). Jump height, reactive strength index modified, propulsion mean force, propulsion impulse, and propulsion mean velocity were all greater for males (d = 1.50 to 3.07). Relative force– and velocity–time curves were greater for males at 86–93% (latter half of the concentric phase) and 85–100% (latter half of the concentric phase) of normalized movement time, respectively. Time to take-off, braking phase time, braking mean velocity and impulse, propulsion phase time and centre of mass displacement were similar between males and females (d = −0.23 to 0.97). This research demonstrates the strength of SPM to identify changes between entire force-time curves. Continued development and the use of SPM analysis could present the opportunity for a refined comparison of strength-matched male and female CMJ performance with the analysis of entire force–time curves. MDPI 2022-03-12 /pmc/articles/PMC8949185/ /pubmed/35329039 http://dx.doi.org/10.3390/ijerph19063352 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Thomas, Christopher Jones, Paul A. Dos’Santos, Thomas Countermovement Jump Force–Time Curve Analysis between Strength-Matched Male and Female Soccer Players |
title | Countermovement Jump Force–Time Curve Analysis between Strength-Matched Male and Female Soccer Players |
title_full | Countermovement Jump Force–Time Curve Analysis between Strength-Matched Male and Female Soccer Players |
title_fullStr | Countermovement Jump Force–Time Curve Analysis between Strength-Matched Male and Female Soccer Players |
title_full_unstemmed | Countermovement Jump Force–Time Curve Analysis between Strength-Matched Male and Female Soccer Players |
title_short | Countermovement Jump Force–Time Curve Analysis between Strength-Matched Male and Female Soccer Players |
title_sort | countermovement jump force–time curve analysis between strength-matched male and female soccer players |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8949185/ https://www.ncbi.nlm.nih.gov/pubmed/35329039 http://dx.doi.org/10.3390/ijerph19063352 |
work_keys_str_mv | AT thomaschristopher countermovementjumpforcetimecurveanalysisbetweenstrengthmatchedmaleandfemalesoccerplayers AT jonespaula countermovementjumpforcetimecurveanalysisbetweenstrengthmatchedmaleandfemalesoccerplayers AT dossantosthomas countermovementjumpforcetimecurveanalysisbetweenstrengthmatchedmaleandfemalesoccerplayers |