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The validity of using one force platform to quantify whole-body forces, velocities, and power during a plyometric push-up

BACKGROUND: Previous studies have typically measured velocity and power parameters during the push-up, either using one or two force platforms. The purpose of the study was to compare the force, velocity, and power parameters between the one-force-platform method and the two-force-platform method du...

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Autores principales: Sha, Zhanxin, Dai, Boyi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8406610/
https://www.ncbi.nlm.nih.gov/pubmed/34462003
http://dx.doi.org/10.1186/s13102-021-00330-z
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author Sha, Zhanxin
Dai, Boyi
author_facet Sha, Zhanxin
Dai, Boyi
author_sort Sha, Zhanxin
collection PubMed
description BACKGROUND: Previous studies have typically measured velocity and power parameters during the push-up, either using one or two force platforms. The purpose of the study was to compare the force, velocity, and power parameters between the one-force-platform method and the two-force-platform method during plyometric push-ups. METHODS: Thirty-four physically active young adults participated in the study to perform the plyometric push-up. For the two-force-platform calculation method, the forces applied to the feet and hands were both measured. For the one-force-platform calculation method, the forces applied to the feet were assumed to be constant, while the forces applied to hands were measured by one force platform. Whole-body linear velocities were calculated based on the impulse and momentum theorem. Whole-body power was calculated as the product of the whole-body forces and velocities. RESULTS: The one-force-platform method overestimated the whole-body velocities and power compared with the two-force-platform method (1.39 ± 0.37 m/s vs. 0.90 ± 0.23 m/s, Cohen’s d = 1.59, p < 0.05; 1.63 ± 0.47 W/body weight vs. 1.03 ± 0.29 W/body weight, Cohen’s d = 1.49, p < 0.05). These differences were caused by the decreased forces applied to the feet compared to the initial value throughout most of the push-up phase. Large to perfect correlations (r = 0.55 – 0.99) were found for most variables between the two-force-platform and one-force-platform methods. Previous findings of push-up velocities and power using the two-force-platform and one-force-platform methods should be compared with caution. While the two-force-platform method is recommended, linear regression equations may be used to predict velocities and power parameters obtained from one force platform. CONCLUSIONS: For those professionals who need to accurately quantify kinetic variables during the plyometric push-up, the two-force-platform method should be considered.
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spelling pubmed-84066102021-08-31 The validity of using one force platform to quantify whole-body forces, velocities, and power during a plyometric push-up Sha, Zhanxin Dai, Boyi BMC Sports Sci Med Rehabil Technical Advance BACKGROUND: Previous studies have typically measured velocity and power parameters during the push-up, either using one or two force platforms. The purpose of the study was to compare the force, velocity, and power parameters between the one-force-platform method and the two-force-platform method during plyometric push-ups. METHODS: Thirty-four physically active young adults participated in the study to perform the plyometric push-up. For the two-force-platform calculation method, the forces applied to the feet and hands were both measured. For the one-force-platform calculation method, the forces applied to the feet were assumed to be constant, while the forces applied to hands were measured by one force platform. Whole-body linear velocities were calculated based on the impulse and momentum theorem. Whole-body power was calculated as the product of the whole-body forces and velocities. RESULTS: The one-force-platform method overestimated the whole-body velocities and power compared with the two-force-platform method (1.39 ± 0.37 m/s vs. 0.90 ± 0.23 m/s, Cohen’s d = 1.59, p < 0.05; 1.63 ± 0.47 W/body weight vs. 1.03 ± 0.29 W/body weight, Cohen’s d = 1.49, p < 0.05). These differences were caused by the decreased forces applied to the feet compared to the initial value throughout most of the push-up phase. Large to perfect correlations (r = 0.55 – 0.99) were found for most variables between the two-force-platform and one-force-platform methods. Previous findings of push-up velocities and power using the two-force-platform and one-force-platform methods should be compared with caution. While the two-force-platform method is recommended, linear regression equations may be used to predict velocities and power parameters obtained from one force platform. CONCLUSIONS: For those professionals who need to accurately quantify kinetic variables during the plyometric push-up, the two-force-platform method should be considered. BioMed Central 2021-08-30 /pmc/articles/PMC8406610/ /pubmed/34462003 http://dx.doi.org/10.1186/s13102-021-00330-z Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Technical Advance
Sha, Zhanxin
Dai, Boyi
The validity of using one force platform to quantify whole-body forces, velocities, and power during a plyometric push-up
title The validity of using one force platform to quantify whole-body forces, velocities, and power during a plyometric push-up
title_full The validity of using one force platform to quantify whole-body forces, velocities, and power during a plyometric push-up
title_fullStr The validity of using one force platform to quantify whole-body forces, velocities, and power during a plyometric push-up
title_full_unstemmed The validity of using one force platform to quantify whole-body forces, velocities, and power during a plyometric push-up
title_short The validity of using one force platform to quantify whole-body forces, velocities, and power during a plyometric push-up
title_sort validity of using one force platform to quantify whole-body forces, velocities, and power during a plyometric push-up
topic Technical Advance
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8406610/
https://www.ncbi.nlm.nih.gov/pubmed/34462003
http://dx.doi.org/10.1186/s13102-021-00330-z
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