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Relationships between kinematic characteristics and ratio of forces during initial sprint acceleration

Daniel King Orcid Logo, Louise Burnie Orcid Logo, Ryu Nagahara Orcid Logo, Neil Bezodis Orcid Logo

Journal of Sports Sciences, Volume: 40, Issue: 22, Pages: 2524 - 2532

Swansea University Authors: Daniel King Orcid Logo, Neil Bezodis Orcid Logo

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DOI (Published version): 10.1080/02640414.2023.2172797

Abstract

In track sprinting, acceleration performance is largely determined by the ability to generate a high ratio of forces (RF), but the technical features associated with this remain unknown. This study therefore investigated the relationships between selected kinematic characteristics and RF during the...

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Published in: Journal of Sports Sciences
ISSN: 0264-0414 1466-447X
Published: Informa UK Limited 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa62380
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spelling v2 62380 2023-01-19 Relationships between kinematic characteristics and ratio of forces during initial sprint acceleration e23c527859999beb492e07947eb380e5 0000-0002-9700-7158 Daniel King Daniel King true false 534588568c1936e94e1ed8527b8c991b 0000-0003-2229-3310 Neil Bezodis Neil Bezodis true false 2023-01-19 HDAT In track sprinting, acceleration performance is largely determined by the ability to generate a high ratio of forces (RF), but the technical features associated with this remain unknown. This study therefore investigated the relationships between selected kinematic characteristics and RF during the initial acceleration phase. Fourteen male sprinters completed two maximal 60 m sprints from a block start. Full-body kinematic and external kinetic data were obtained from the first four steps, and the relationships between selected kinematic characteristics and mean RF over the first four steps were determined. Placing the stance foot further behind (or less far in front of) the whole-body centre of mass at touchdown was significantly related to greater RF (r = -0.672), and more anterior orientation of the proximal end of the foot (r = -0.724) and shank (r = -0.764) segments at touchdown were also significantly related to greater RF. Following touchdown, greater ankle dorsiflexion range of motion during early stance was significantly related to greater RF (r = 0.728). When aiming to enhance RF during initial acceleration, practitioners should be encouraged to focus on lower leg configurations when manipulating touchdown distance, and the role of dorsiflexion during early stance is also an important consideration. Journal Article Journal of Sports Sciences 40 22 2524 2532 Informa UK Limited 0264-0414 1466-447X Ground reaction forces, performance, sprint start, sprinting, technique, track and field 17 11 2022 2022-11-17 10.1080/02640414.2023.2172797 http://dx.doi.org/10.1080/02640414.2023.2172797 COLLEGE NANME Health Data Science COLLEGE CODE HDAT Swansea University SU Library paid the OA fee (TA Institutional Deal) Swansea University. 2023-06-27T16:44:36.6585718 2023-01-19T16:19:41.9847560 Faculty of Science and Engineering School of Engineering and Applied Sciences - Sport and Exercise Sciences Daniel King 0000-0002-9700-7158 1 Louise Burnie 0000-0002-6426-6727 2 Ryu Nagahara 0000-0001-9101-9759 3 Neil Bezodis 0000-0003-2229-3310 4 62380__27897__7052fa38a21d419b8dc8c5b87b3d51f2.pdf 62380.VOR.pdf 2023-06-20T16:02:58.6834305 Output 1403401 application/pdf Version of Record true © 2023 The Author(s). Distributed under the terms of a Creative Commons Attribution 4.0 License (CC BY 4.0). true eng https://creativecommons.org/licenses/by/4.0/
title Relationships between kinematic characteristics and ratio of forces during initial sprint acceleration
spellingShingle Relationships between kinematic characteristics and ratio of forces during initial sprint acceleration
Daniel King
Neil Bezodis
title_short Relationships between kinematic characteristics and ratio of forces during initial sprint acceleration
title_full Relationships between kinematic characteristics and ratio of forces during initial sprint acceleration
title_fullStr Relationships between kinematic characteristics and ratio of forces during initial sprint acceleration
title_full_unstemmed Relationships between kinematic characteristics and ratio of forces during initial sprint acceleration
title_sort Relationships between kinematic characteristics and ratio of forces during initial sprint acceleration
author_id_str_mv e23c527859999beb492e07947eb380e5
534588568c1936e94e1ed8527b8c991b
author_id_fullname_str_mv e23c527859999beb492e07947eb380e5_***_Daniel King
534588568c1936e94e1ed8527b8c991b_***_Neil Bezodis
author Daniel King
Neil Bezodis
author2 Daniel King
Louise Burnie
Ryu Nagahara
Neil Bezodis
format Journal article
container_title Journal of Sports Sciences
container_volume 40
container_issue 22
container_start_page 2524
publishDate 2022
institution Swansea University
issn 0264-0414
1466-447X
doi_str_mv 10.1080/02640414.2023.2172797
publisher Informa UK Limited
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Sport and Exercise Sciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Sport and Exercise Sciences
url http://dx.doi.org/10.1080/02640414.2023.2172797
document_store_str 1
active_str 0
description In track sprinting, acceleration performance is largely determined by the ability to generate a high ratio of forces (RF), but the technical features associated with this remain unknown. This study therefore investigated the relationships between selected kinematic characteristics and RF during the initial acceleration phase. Fourteen male sprinters completed two maximal 60 m sprints from a block start. Full-body kinematic and external kinetic data were obtained from the first four steps, and the relationships between selected kinematic characteristics and mean RF over the first four steps were determined. Placing the stance foot further behind (or less far in front of) the whole-body centre of mass at touchdown was significantly related to greater RF (r = -0.672), and more anterior orientation of the proximal end of the foot (r = -0.724) and shank (r = -0.764) segments at touchdown were also significantly related to greater RF. Following touchdown, greater ankle dorsiflexion range of motion during early stance was significantly related to greater RF (r = 0.728). When aiming to enhance RF during initial acceleration, practitioners should be encouraged to focus on lower leg configurations when manipulating touchdown distance, and the role of dorsiflexion during early stance is also an important consideration.
published_date 2022-11-17T16:44:31Z
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