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Eccentric overload differences between loads and training variables on flywheel training
There is considerable debate about the existence of a real eccentric overload in flywheel exercises. This study aimed to analyse the differences in concentric: eccentric mechanical output ratios between different loads and variables in the flywheel squat exercise. Twenty physically active men (22.9...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Institute of Sport in Warsaw
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10588593/ https://www.ncbi.nlm.nih.gov/pubmed/37867740 http://dx.doi.org/10.5114/biolsport.2023.122483 |
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author | Muñoz-López, Alejandro Nakamura, Fábio Yuzo Beato, Marco |
author_facet | Muñoz-López, Alejandro Nakamura, Fábio Yuzo Beato, Marco |
author_sort | Muñoz-López, Alejandro |
collection | PubMed |
description | There is considerable debate about the existence of a real eccentric overload in flywheel exercises. This study aimed to analyse the differences in concentric: eccentric mechanical output ratios between different loads and variables in the flywheel squat exercise. Twenty physically active men (22.9 ± 2.2 years, height: 1.8 ± 0.1 m, weight: 79.6 ± 8.2 kg) performed a loading test using five moments of inertia. Angular speed was measured using a rotary encoder, while the vertical force was measured using force plates. For each variable (angular speed, angular acceleration, power, vertical force, and torque), mean and peak values were calculated for concentric and eccentric phases to allow comparisons across the loads. We tested the possible differences in Load × Phase (concentric and eccentric) and Load × Variable. The level of significance was established as p < 0.05. A significant Load × Phase interaction was found in mean angular speed, peak vertical force, peak angular acceleration, peak power and peak torque. Higher eccentric overload values were observed with speed-derived variables (angular speed, angular acceleration and power). In conclusion, speed-derived peak variables and lower loads are more likely to show an eccentric overload and can be used to monitor responses to flywheel training. |
format | Online Article Text |
id | pubmed-10588593 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Institute of Sport in Warsaw |
record_format | MEDLINE/PubMed |
spelling | pubmed-105885932023-10-21 Eccentric overload differences between loads and training variables on flywheel training Muñoz-López, Alejandro Nakamura, Fábio Yuzo Beato, Marco Biol Sport Original Paper There is considerable debate about the existence of a real eccentric overload in flywheel exercises. This study aimed to analyse the differences in concentric: eccentric mechanical output ratios between different loads and variables in the flywheel squat exercise. Twenty physically active men (22.9 ± 2.2 years, height: 1.8 ± 0.1 m, weight: 79.6 ± 8.2 kg) performed a loading test using five moments of inertia. Angular speed was measured using a rotary encoder, while the vertical force was measured using force plates. For each variable (angular speed, angular acceleration, power, vertical force, and torque), mean and peak values were calculated for concentric and eccentric phases to allow comparisons across the loads. We tested the possible differences in Load × Phase (concentric and eccentric) and Load × Variable. The level of significance was established as p < 0.05. A significant Load × Phase interaction was found in mean angular speed, peak vertical force, peak angular acceleration, peak power and peak torque. Higher eccentric overload values were observed with speed-derived variables (angular speed, angular acceleration and power). In conclusion, speed-derived peak variables and lower loads are more likely to show an eccentric overload and can be used to monitor responses to flywheel training. Institute of Sport in Warsaw 2023-04-05 2023-10 /pmc/articles/PMC10588593/ /pubmed/37867740 http://dx.doi.org/10.5114/biolsport.2023.122483 Text en Copyright © Biology of Sport 2023 https://creativecommons.org/licenses/by-sa/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution Share Alike 4.0 License, allowing third parties to copy and redistribute the material in any medium or format and remix, transform, and build upon the material for any purpose, even commercially, provided the original work is properly cited and states its license. |
spellingShingle | Original Paper Muñoz-López, Alejandro Nakamura, Fábio Yuzo Beato, Marco Eccentric overload differences between loads and training variables on flywheel training |
title | Eccentric overload differences between loads and training variables on flywheel training |
title_full | Eccentric overload differences between loads and training variables on flywheel training |
title_fullStr | Eccentric overload differences between loads and training variables on flywheel training |
title_full_unstemmed | Eccentric overload differences between loads and training variables on flywheel training |
title_short | Eccentric overload differences between loads and training variables on flywheel training |
title_sort | eccentric overload differences between loads and training variables on flywheel training |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10588593/ https://www.ncbi.nlm.nih.gov/pubmed/37867740 http://dx.doi.org/10.5114/biolsport.2023.122483 |
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