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Changes to horizontal force-velocity and impulse measures during sprint running acceleration with thigh and shank wearable resistance

Erin H. Feser, Neil Bezodis Orcid Logo, Jono Neville, Paul Macadam, Aaron M. Uthoff, Ryu Nagahara, Farhan Tinwala, Kenneth Clark, John B. Cronin

Journal of Sports Sciences, Volume: 39, Issue: 13, Pages: 1519 - 1527

Swansea University Author: Neil Bezodis Orcid Logo

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DOI (Published version): 10.1080/02640414.2021.1882771

Abstract

This study determined the effects of two wearable resistance (WR) placements (i.e. thigh and shank) on horizontal force-velocity and impulse measures during sprint running acceleration. Eleven male athletes performed 50 m sprints either unloaded or with WR of 2% body mass attached to the thigh or sh...

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Published in: Journal of Sports Sciences
ISSN: 0264-0414 1466-447X
Published: Informa UK Limited 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa56141
first_indexed 2021-01-28T10:06:14Z
last_indexed 2025-01-09T19:58:33Z
id cronfa56141
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spelling 2025-01-06T14:39:37.0218414 v2 56141 2021-01-28 Changes to horizontal force-velocity and impulse measures during sprint running acceleration with thigh and shank wearable resistance 534588568c1936e94e1ed8527b8c991b 0000-0003-2229-3310 Neil Bezodis Neil Bezodis true false 2021-01-28 EAAS This study determined the effects of two wearable resistance (WR) placements (i.e. thigh and shank) on horizontal force-velocity and impulse measures during sprint running acceleration. Eleven male athletes performed 50 m sprints either unloaded or with WR of 2% body mass attached to the thigh or shank. In-ground force platforms were used to measure ground reaction forces and determine dependent variables of interest. The main findings were: 1) increases in sprint times and reductions in maximum velocity were trivial to small when using thigh WR (0.00–1.93%) and small to moderate with shank WR (1.56–3.33%); 2) athletes maintained or significantly increased horizontal force-velocity mechanical variables with WR (effect size = 0.32–1.23), except for theoretical maximal velocity with thigh WR, and peak power, theoretical maximal velocity and maximal ratio of force with shank WR; 3) greater increases to braking and vertical impulses were observed with shank WR (2.72–26.3% compared to unloaded) than with thigh WR (2.17–12.1% compared to unloaded) when considering the entire acceleration phase; and, 4) no clear trends were observed in many of the individual responses. These findings highlight the velocity-specific nature of this resistance training method and provide insight into what mechanical components are overloaded by lower-limb WR. Journal Article Journal of Sports Sciences 39 13 1519 1527 Informa UK Limited 0264-0414 1466-447X Limb loading, velocity, sport specificity, acceleration 3 7 2021 2021-07-03 10.1080/02640414.2021.1882771 COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University 2025-01-06T14:39:37.0218414 2021-01-28T10:00:10.6824591 Faculty of Science and Engineering School of Engineering and Applied Sciences - Sport and Exercise Sciences Erin H. Feser 1 Neil Bezodis 0000-0003-2229-3310 2 Jono Neville 3 Paul Macadam 4 Aaron M. Uthoff 5 Ryu Nagahara 6 Farhan Tinwala 7 Kenneth Clark 8 John B. Cronin 9 56141__19195__a8a605b7af524cb799a127d14909c306.pdf 56141.pdf 2021-01-28T10:06:03.5557269 Output 891961 application/pdf Accepted Manuscript true 2022-02-14T00:00:00.0000000 true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title Changes to horizontal force-velocity and impulse measures during sprint running acceleration with thigh and shank wearable resistance
spellingShingle Changes to horizontal force-velocity and impulse measures during sprint running acceleration with thigh and shank wearable resistance
Neil Bezodis
title_short Changes to horizontal force-velocity and impulse measures during sprint running acceleration with thigh and shank wearable resistance
title_full Changes to horizontal force-velocity and impulse measures during sprint running acceleration with thigh and shank wearable resistance
title_fullStr Changes to horizontal force-velocity and impulse measures during sprint running acceleration with thigh and shank wearable resistance
title_full_unstemmed Changes to horizontal force-velocity and impulse measures during sprint running acceleration with thigh and shank wearable resistance
title_sort Changes to horizontal force-velocity and impulse measures during sprint running acceleration with thigh and shank wearable resistance
author_id_str_mv 534588568c1936e94e1ed8527b8c991b
author_id_fullname_str_mv 534588568c1936e94e1ed8527b8c991b_***_Neil Bezodis
author Neil Bezodis
author2 Erin H. Feser
Neil Bezodis
Jono Neville
Paul Macadam
Aaron M. Uthoff
Ryu Nagahara
Farhan Tinwala
Kenneth Clark
John B. Cronin
format Journal article
container_title Journal of Sports Sciences
container_volume 39
container_issue 13
container_start_page 1519
publishDate 2021
institution Swansea University
issn 0264-0414
1466-447X
doi_str_mv 10.1080/02640414.2021.1882771
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
document_store_str 1
active_str 0
description This study determined the effects of two wearable resistance (WR) placements (i.e. thigh and shank) on horizontal force-velocity and impulse measures during sprint running acceleration. Eleven male athletes performed 50 m sprints either unloaded or with WR of 2% body mass attached to the thigh or shank. In-ground force platforms were used to measure ground reaction forces and determine dependent variables of interest. The main findings were: 1) increases in sprint times and reductions in maximum velocity were trivial to small when using thigh WR (0.00–1.93%) and small to moderate with shank WR (1.56–3.33%); 2) athletes maintained or significantly increased horizontal force-velocity mechanical variables with WR (effect size = 0.32–1.23), except for theoretical maximal velocity with thigh WR, and peak power, theoretical maximal velocity and maximal ratio of force with shank WR; 3) greater increases to braking and vertical impulses were observed with shank WR (2.72–26.3% compared to unloaded) than with thigh WR (2.17–12.1% compared to unloaded) when considering the entire acceleration phase; and, 4) no clear trends were observed in many of the individual responses. These findings highlight the velocity-specific nature of this resistance training method and provide insight into what mechanical components are overloaded by lower-limb WR.
published_date 2021-07-03T07:28:03Z
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score 11.301609

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