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Comparison of development of step-kinematics of assisted 60 m sprints with different pulling forces between experienced male and female sprinters

The purpose of this study was to compare step-by-step kinematics of normal and assisted 60 m sprints with different loads in experienced sprinters. Step-by-step kinematics were measured using inertial measuring units (IMU) integrated with a 3-axis gyroscope and a laser gun in 24 national level male...

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Autor principal: van den Tillaar, Roland
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8315524/
https://www.ncbi.nlm.nih.gov/pubmed/34314453
http://dx.doi.org/10.1371/journal.pone.0255302
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author van den Tillaar, Roland
author_facet van den Tillaar, Roland
author_sort van den Tillaar, Roland
collection PubMed
description The purpose of this study was to compare step-by-step kinematics of normal and assisted 60 m sprints with different loads in experienced sprinters. Step-by-step kinematics were measured using inertial measuring units (IMU) integrated with a 3-axis gyroscope and a laser gun in 24 national level male and female sprinters during a normal 60 m sprint and sprints with a 3, 4, and 5 kg pulling force. The main findings were that using increasing assisted loads resulted in faster 60 m times, as a result of higher step velocity mainly caused by longer step lengths in both genders and by shorter contact times in women. Men had longer step lengths, longer contact times, and shorter flight times than women. However, the assisted loads had a greater effect on women than on men, as shown by their larger decrease in sprint times. These time differences in gender were the result of more and longer duration increases in maximal step velocity with increasing assisted loads for women (70–80% of distance) than men (65–70% of distance). This was mainly caused by shorter contact times, and by more increased step lengths in women compared to men. In terms of practical application, it is notable that employing this approach, when using assisted loads can help athletes to reach higher step velocities and hold this for longer, which may be a training impulse to move the speed barrier upwards.
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spelling pubmed-83155242021-07-31 Comparison of development of step-kinematics of assisted 60 m sprints with different pulling forces between experienced male and female sprinters van den Tillaar, Roland PLoS One Research Article The purpose of this study was to compare step-by-step kinematics of normal and assisted 60 m sprints with different loads in experienced sprinters. Step-by-step kinematics were measured using inertial measuring units (IMU) integrated with a 3-axis gyroscope and a laser gun in 24 national level male and female sprinters during a normal 60 m sprint and sprints with a 3, 4, and 5 kg pulling force. The main findings were that using increasing assisted loads resulted in faster 60 m times, as a result of higher step velocity mainly caused by longer step lengths in both genders and by shorter contact times in women. Men had longer step lengths, longer contact times, and shorter flight times than women. However, the assisted loads had a greater effect on women than on men, as shown by their larger decrease in sprint times. These time differences in gender were the result of more and longer duration increases in maximal step velocity with increasing assisted loads for women (70–80% of distance) than men (65–70% of distance). This was mainly caused by shorter contact times, and by more increased step lengths in women compared to men. In terms of practical application, it is notable that employing this approach, when using assisted loads can help athletes to reach higher step velocities and hold this for longer, which may be a training impulse to move the speed barrier upwards. Public Library of Science 2021-07-27 /pmc/articles/PMC8315524/ /pubmed/34314453 http://dx.doi.org/10.1371/journal.pone.0255302 Text en © 2021 Roland van den Tillaar https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
van den Tillaar, Roland
Comparison of development of step-kinematics of assisted 60 m sprints with different pulling forces between experienced male and female sprinters
title Comparison of development of step-kinematics of assisted 60 m sprints with different pulling forces between experienced male and female sprinters
title_full Comparison of development of step-kinematics of assisted 60 m sprints with different pulling forces between experienced male and female sprinters
title_fullStr Comparison of development of step-kinematics of assisted 60 m sprints with different pulling forces between experienced male and female sprinters
title_full_unstemmed Comparison of development of step-kinematics of assisted 60 m sprints with different pulling forces between experienced male and female sprinters
title_short Comparison of development of step-kinematics of assisted 60 m sprints with different pulling forces between experienced male and female sprinters
title_sort comparison of development of step-kinematics of assisted 60 m sprints with different pulling forces between experienced male and female sprinters
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8315524/
https://www.ncbi.nlm.nih.gov/pubmed/34314453
http://dx.doi.org/10.1371/journal.pone.0255302
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