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The effects of lower-limb wearable resistance on sprint performance in high school American football athletes: A nine-week training study

Erin H Feser, Christian Korfist, Kyle Lindley, Neil Bezodis Orcid Logo, Kenneth Clark, John Cronin

International Journal of Sports Science & Coaching, Volume: 16, Issue: 5, Pages: 1187 - 1195

Swansea University Author: Neil Bezodis Orcid Logo

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DOI (Published version): 10.1177/17479541211003403

Abstract

Time constraints often result in the challenge to fit desired programming into training time allotments. Wearable resistance (WR) may be an option to optimise the training content in function of constrained training time. The purpose of this study was to determine the effects of a lower-limb WR spri...

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Published in: International Journal of Sports Science & Coaching
ISSN: 1747-9541 2048-397X
Published: SAGE Publications 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa56349
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The purpose of this study was to determine the effects of a lower-limb WR sprint running training intervention on athlete speed capabilities following a nine-week off-season, low volume training period within a sample of American football high school athletes. Nineteen athletes completed pre- and post-intervention testing of two maximal effort 30&#x2009;m sprints. Horizontal force-velocity mechanical profiling variables, sprint times, and maximal velocity were calculated from sprint running velocity data collected by a radar device. The athletes completed seventeen dedicated sprint training sessions during the off-season. The intervention (WR) group completed the sessions with 1% body mass load attached to the shanks (i.e. 0.50% body mass load on each limb). The control group completed the same training sessions unloaded. Post-intervention, no statistically significant between group differences were observed (p&#x2009;&gt;&#x2009;0.05). 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Coaches can consider using lower-limb WR training to increase in-session workloads during periods of low volume training but more research is needed to better understand to what extent WR training might provide an added value to optimise both the training content and planning, as well as the athlete&#x2019;s training response in order to improve sprint running performance.</abstract><type>Journal Article</type><journal>International Journal of Sports Science &amp; Coaching</journal><volume>16</volume><journalNumber>5</journalNumber><paginationStart>1187</paginationStart><paginationEnd>1195</paginationEnd><publisher>SAGE Publications</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>1747-9541</issnPrint><issnElectronic>2048-397X</issnElectronic><keywords>Acceleration, running velocity, shank loading</keywords><publishedDay>1</publishedDay><publishedMonth>10</publishedMonth><publishedYear>2021</publishedYear><publishedDate>2021-10-01</publishedDate><doi>10.1177/17479541211003403</doi><url/><notes/><college>COLLEGE NANME</college><department>Sport and Exercise Sciences</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>STSC</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2021-10-29T17:44:25.9352983</lastEdited><Created>2021-03-01T10:12:17.0244279</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Sport and Exercise Sciences</level></path><authors><author><firstname>Erin H</firstname><surname>Feser</surname><order>1</order></author><author><firstname>Christian</firstname><surname>Korfist</surname><order>2</order></author><author><firstname>Kyle</firstname><surname>Lindley</surname><order>3</order></author><author><firstname>Neil</firstname><surname>Bezodis</surname><orcid>0000-0003-2229-3310</orcid><order>4</order></author><author><firstname>Kenneth</firstname><surname>Clark</surname><order>5</order></author><author><firstname>John</firstname><surname>Cronin</surname><order>6</order></author></authors><documents><document><filename>56349__19394__670fcb48fbda4f3d96fb57468e4af17d.pdf</filename><originalFilename>56349.pdf</originalFilename><uploaded>2021-03-01T10:13:57.8881287</uploaded><type>Output</type><contentLength>341415</contentLength><contentType>application/pdf</contentType><version>Accepted Manuscript</version><cronfaStatus>true</cronfaStatus><documentNotes>&#xA9;2021 All rights reserved. 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spelling 2021-10-29T17:44:25.9352983 v2 56349 2021-03-01 The effects of lower-limb wearable resistance on sprint performance in high school American football athletes: A nine-week training study 534588568c1936e94e1ed8527b8c991b 0000-0003-2229-3310 Neil Bezodis Neil Bezodis true false 2021-03-01 STSC Time constraints often result in the challenge to fit desired programming into training time allotments. Wearable resistance (WR) may be an option to optimise the training content in function of constrained training time. The purpose of this study was to determine the effects of a lower-limb WR sprint running training intervention on athlete speed capabilities following a nine-week off-season, low volume training period within a sample of American football high school athletes. Nineteen athletes completed pre- and post-intervention testing of two maximal effort 30 m sprints. Horizontal force-velocity mechanical profiling variables, sprint times, and maximal velocity were calculated from sprint running velocity data collected by a radar device. The athletes completed seventeen dedicated sprint training sessions during the off-season. The intervention (WR) group completed the sessions with 1% body mass load attached to the shanks (i.e. 0.50% body mass load on each limb). The control group completed the same training sessions unloaded. Post-intervention, no statistically significant between group differences were observed (p > 0.05). However, athletes in both groups experienced increases in velocity measures following the sprint training. The greater adjusted mean theoretical maximal velocity scores (p > 0.05; ES = 0.30) found for the WR group compared to the control group at post-intervention may suggest that WR amplifies the nuances of the training protocol itself. Coaches can consider using lower-limb WR training to increase in-session workloads during periods of low volume training but more research is needed to better understand to what extent WR training might provide an added value to optimise both the training content and planning, as well as the athlete’s training response in order to improve sprint running performance. Journal Article International Journal of Sports Science & Coaching 16 5 1187 1195 SAGE Publications 1747-9541 2048-397X Acceleration, running velocity, shank loading 1 10 2021 2021-10-01 10.1177/17479541211003403 COLLEGE NANME Sport and Exercise Sciences COLLEGE CODE STSC Swansea University 2021-10-29T17:44:25.9352983 2021-03-01T10:12:17.0244279 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Sport and Exercise Sciences Erin H Feser 1 Christian Korfist 2 Kyle Lindley 3 Neil Bezodis 0000-0003-2229-3310 4 Kenneth Clark 5 John Cronin 6 56349__19394__670fcb48fbda4f3d96fb57468e4af17d.pdf 56349.pdf 2021-03-01T10:13:57.8881287 Output 341415 application/pdf Accepted Manuscript true ©2021 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title The effects of lower-limb wearable resistance on sprint performance in high school American football athletes: A nine-week training study
spellingShingle The effects of lower-limb wearable resistance on sprint performance in high school American football athletes: A nine-week training study
Neil Bezodis
title_short The effects of lower-limb wearable resistance on sprint performance in high school American football athletes: A nine-week training study
title_full The effects of lower-limb wearable resistance on sprint performance in high school American football athletes: A nine-week training study
title_fullStr The effects of lower-limb wearable resistance on sprint performance in high school American football athletes: A nine-week training study
title_full_unstemmed The effects of lower-limb wearable resistance on sprint performance in high school American football athletes: A nine-week training study
title_sort The effects of lower-limb wearable resistance on sprint performance in high school American football athletes: A nine-week training study
author_id_str_mv 534588568c1936e94e1ed8527b8c991b
author_id_fullname_str_mv 534588568c1936e94e1ed8527b8c991b_***_Neil Bezodis
author Neil Bezodis
author2 Erin H Feser
Christian Korfist
Kyle Lindley
Neil Bezodis
Kenneth Clark
John Cronin
format Journal article
container_title International Journal of Sports Science & Coaching
container_volume 16
container_issue 5
container_start_page 1187
publishDate 2021
institution Swansea University
issn 1747-9541
2048-397X
doi_str_mv 10.1177/17479541211003403
publisher SAGE Publications
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 Aerospace, Civil, Electrical, General and Mechanical Engineering - Sport and Exercise Sciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Sport and Exercise Sciences
document_store_str 1
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description Time constraints often result in the challenge to fit desired programming into training time allotments. Wearable resistance (WR) may be an option to optimise the training content in function of constrained training time. The purpose of this study was to determine the effects of a lower-limb WR sprint running training intervention on athlete speed capabilities following a nine-week off-season, low volume training period within a sample of American football high school athletes. Nineteen athletes completed pre- and post-intervention testing of two maximal effort 30 m sprints. Horizontal force-velocity mechanical profiling variables, sprint times, and maximal velocity were calculated from sprint running velocity data collected by a radar device. The athletes completed seventeen dedicated sprint training sessions during the off-season. The intervention (WR) group completed the sessions with 1% body mass load attached to the shanks (i.e. 0.50% body mass load on each limb). The control group completed the same training sessions unloaded. Post-intervention, no statistically significant between group differences were observed (p > 0.05). However, athletes in both groups experienced increases in velocity measures following the sprint training. The greater adjusted mean theoretical maximal velocity scores (p > 0.05; ES = 0.30) found for the WR group compared to the control group at post-intervention may suggest that WR amplifies the nuances of the training protocol itself. Coaches can consider using lower-limb WR training to increase in-session workloads during periods of low volume training but more research is needed to better understand to what extent WR training might provide an added value to optimise both the training content and planning, as well as the athlete’s training response in order to improve sprint running performance.
published_date 2021-10-01T04:11:14Z
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score 11.037166

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