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Relationships between physical qualities and key performance indicators during match-play in senior international rugby union players

Daniel J. Cunningham, David A. Shearer, Scott Drawer, Ben Pollard, Christian J. Cook, Mark Bennett, Mark Russell, Liam Kilduff Orcid Logo

PLOS ONE, Volume: 13, Issue: 9, Start page: e0202811

Swansea University Author: Liam Kilduff Orcid Logo

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DOI (Published version): 10.1371/journal.pone.0202811

Abstract

The use of physical tests to profile physical capabilities, and provide training direction to athletes is common practice. Likewise, in professional team sports, notational analysis codes the key contributions of each player during competition. Limited studies have however investigated relationships...

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Published in: PLOS ONE
ISSN: 1932-6203
Published: 2018
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fullrecord <?xml version="1.0"?><rfc1807><datestamp>2020-06-17T15:21:49.9293263</datestamp><bib-version>v2</bib-version><id>43357</id><entry>2018-08-14</entry><title>Relationships between physical qualities and key performance indicators during match-play in senior international rugby union players</title><swanseaauthors><author><sid>972ed9a1dda7a0de20581a0f8350be98</sid><ORCID>0000-0001-9449-2293</ORCID><firstname>Liam</firstname><surname>Kilduff</surname><name>Liam Kilduff</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2018-08-14</date><deptcode>STSC</deptcode><abstract>The use of physical tests to profile physical capabilities, and provide training direction to athletes is common practice. Likewise, in professional team sports, notational analysis codes the key contributions of each player during competition. Limited studies have however investigated relationships between physical capabilities and key performance indicators (KPIs) of rugby union match-play. Elite professional players, categorised as forwards (n = 15) or backs (n = 14), from an international rugby union squad (n = 29) undertook assessments of isometric mid-thigh pull (IMTP), bilateral and unilateral countermovement jumps (CMJ) and drop jumps (DJ; from 40 and 20 cm, respectively), and assessment of acceleration (10 m), a 5 m weighted sled drive, and a Yo-Yo intermittent recovery test level 1 (Yo-Yo IRTL1). Game statistics of the same players from 92 matches (~23 matches per player) during the 2014&#x2013;15 season were analysed for effort and performance-based metrics. For forwards, Yo-Yo IRTL1 correlated significantly with; number of tackles made (r = 0.717), first three players at a ruck in both attack (r = 0.568) and defence (r = 0.581), number of effective rucks (r = 0.630), total possessions (r = 0.522), passes made (r = 0.651), percentage of carries over the gainline (r = 0.610), effective ruck success (r = 0.600), tackle success (r = 0.540), and the number of turnovers made (r = 0.518). Drop jump performance in forwards was associated with; the number of clean breaks (r = 0.558), dominant collisions (r = 0.589), and offloads (r = 0.594). For backs, the sled-drive test correlated with; number of carries (r = -0.751), first three players at an attacking ruck (r = -0.613), effective attacking rucks (r = -0.584), number of dominant collisions (r = -0.792) and offloads (r = -0.814). Likewise, for backs, IMTP peak force was related to; the number of possessions (r = 0.793), passes made (r = 0.792), effective attacking ruck percentage (r = 0.628), and the number of offloads (r = 0.621) whilst relative peak force correlated with; the percentage of carries over the gainline (r = 0.533), percent tackle success (r = 0.603) and effective attacking ruck percentage (r = 0.584). Regression analyses highlighted that only a small number of variables (i.e., carries, tackles, attacking and defensive first three at ruck) returned practically achievable changes (&amp;#60;20%) in physical qualities. In spite of this, and while leaving scope identification of further physical and/or performance predictors, greater strength, power and intermittent running performance were positively related to match-derived KPIs during competition. This may provide a basis for better integrating the strategies used by physical and technical performance-focused coaching staff to improve key performance indicators, and thus match performance, of rugby union players.</abstract><type>Journal Article</type><journal>PLOS ONE</journal><volume>13</volume><journalNumber>9</journalNumber><paginationStart>e0202811</paginationStart><publisher/><issnElectronic>1932-6203</issnElectronic><keywords/><publishedDay>31</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2018</publishedYear><publishedDate>2018-12-31</publishedDate><doi>10.1371/journal.pone.0202811</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>2020-06-17T15:21:49.9293263</lastEdited><Created>2018-08-14T09:20:06.3751212</Created><authors><author><firstname>Daniel J.</firstname><surname>Cunningham</surname><order>1</order></author><author><firstname>David A.</firstname><surname>Shearer</surname><order>2</order></author><author><firstname>Scott</firstname><surname>Drawer</surname><order>3</order></author><author><firstname>Ben</firstname><surname>Pollard</surname><order>4</order></author><author><firstname>Christian J.</firstname><surname>Cook</surname><order>5</order></author><author><firstname>Mark</firstname><surname>Bennett</surname><order>6</order></author><author><firstname>Mark</firstname><surname>Russell</surname><order>7</order></author><author><firstname>Liam</firstname><surname>Kilduff</surname><orcid>0000-0001-9449-2293</orcid><order>8</order></author></authors><documents><document><filename>0043357-24092018091103.pdf</filename><originalFilename>cunningham2018(4).pdf</originalFilename><uploaded>2018-09-24T09:11:03.2130000</uploaded><type>Output</type><contentLength>561802</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><embargoDate>2018-09-24T00:00:00.0000000</embargoDate><documentNotes>This is an open access article distributed under the terms of the Creative Commons Attribution License</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>https://creativecommons.org/licenses/by/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling 2020-06-17T15:21:49.9293263 v2 43357 2018-08-14 Relationships between physical qualities and key performance indicators during match-play in senior international rugby union players 972ed9a1dda7a0de20581a0f8350be98 0000-0001-9449-2293 Liam Kilduff Liam Kilduff true false 2018-08-14 STSC The use of physical tests to profile physical capabilities, and provide training direction to athletes is common practice. Likewise, in professional team sports, notational analysis codes the key contributions of each player during competition. Limited studies have however investigated relationships between physical capabilities and key performance indicators (KPIs) of rugby union match-play. Elite professional players, categorised as forwards (n = 15) or backs (n = 14), from an international rugby union squad (n = 29) undertook assessments of isometric mid-thigh pull (IMTP), bilateral and unilateral countermovement jumps (CMJ) and drop jumps (DJ; from 40 and 20 cm, respectively), and assessment of acceleration (10 m), a 5 m weighted sled drive, and a Yo-Yo intermittent recovery test level 1 (Yo-Yo IRTL1). Game statistics of the same players from 92 matches (~23 matches per player) during the 2014–15 season were analysed for effort and performance-based metrics. For forwards, Yo-Yo IRTL1 correlated significantly with; number of tackles made (r = 0.717), first three players at a ruck in both attack (r = 0.568) and defence (r = 0.581), number of effective rucks (r = 0.630), total possessions (r = 0.522), passes made (r = 0.651), percentage of carries over the gainline (r = 0.610), effective ruck success (r = 0.600), tackle success (r = 0.540), and the number of turnovers made (r = 0.518). Drop jump performance in forwards was associated with; the number of clean breaks (r = 0.558), dominant collisions (r = 0.589), and offloads (r = 0.594). For backs, the sled-drive test correlated with; number of carries (r = -0.751), first three players at an attacking ruck (r = -0.613), effective attacking rucks (r = -0.584), number of dominant collisions (r = -0.792) and offloads (r = -0.814). Likewise, for backs, IMTP peak force was related to; the number of possessions (r = 0.793), passes made (r = 0.792), effective attacking ruck percentage (r = 0.628), and the number of offloads (r = 0.621) whilst relative peak force correlated with; the percentage of carries over the gainline (r = 0.533), percent tackle success (r = 0.603) and effective attacking ruck percentage (r = 0.584). Regression analyses highlighted that only a small number of variables (i.e., carries, tackles, attacking and defensive first three at ruck) returned practically achievable changes (&#60;20%) in physical qualities. In spite of this, and while leaving scope identification of further physical and/or performance predictors, greater strength, power and intermittent running performance were positively related to match-derived KPIs during competition. This may provide a basis for better integrating the strategies used by physical and technical performance-focused coaching staff to improve key performance indicators, and thus match performance, of rugby union players. Journal Article PLOS ONE 13 9 e0202811 1932-6203 31 12 2018 2018-12-31 10.1371/journal.pone.0202811 COLLEGE NANME Sport and Exercise Sciences COLLEGE CODE STSC Swansea University 2020-06-17T15:21:49.9293263 2018-08-14T09:20:06.3751212 Daniel J. Cunningham 1 David A. Shearer 2 Scott Drawer 3 Ben Pollard 4 Christian J. Cook 5 Mark Bennett 6 Mark Russell 7 Liam Kilduff 0000-0001-9449-2293 8 0043357-24092018091103.pdf cunningham2018(4).pdf 2018-09-24T09:11:03.2130000 Output 561802 application/pdf Version of Record true 2018-09-24T00:00:00.0000000 This is an open access article distributed under the terms of the Creative Commons Attribution License true eng https://creativecommons.org/licenses/by/4.0/
title Relationships between physical qualities and key performance indicators during match-play in senior international rugby union players
spellingShingle Relationships between physical qualities and key performance indicators during match-play in senior international rugby union players
Liam Kilduff
title_short Relationships between physical qualities and key performance indicators during match-play in senior international rugby union players
title_full Relationships between physical qualities and key performance indicators during match-play in senior international rugby union players
title_fullStr Relationships between physical qualities and key performance indicators during match-play in senior international rugby union players
title_full_unstemmed Relationships between physical qualities and key performance indicators during match-play in senior international rugby union players
title_sort Relationships between physical qualities and key performance indicators during match-play in senior international rugby union players
author_id_str_mv 972ed9a1dda7a0de20581a0f8350be98
author_id_fullname_str_mv 972ed9a1dda7a0de20581a0f8350be98_***_Liam Kilduff
author Liam Kilduff
author2 Daniel J. Cunningham
David A. Shearer
Scott Drawer
Ben Pollard
Christian J. Cook
Mark Bennett
Mark Russell
Liam Kilduff
format Journal article
container_title PLOS ONE
container_volume 13
container_issue 9
container_start_page e0202811
publishDate 2018
institution Swansea University
issn 1932-6203
doi_str_mv 10.1371/journal.pone.0202811
document_store_str 1
active_str 0
description The use of physical tests to profile physical capabilities, and provide training direction to athletes is common practice. Likewise, in professional team sports, notational analysis codes the key contributions of each player during competition. Limited studies have however investigated relationships between physical capabilities and key performance indicators (KPIs) of rugby union match-play. Elite professional players, categorised as forwards (n = 15) or backs (n = 14), from an international rugby union squad (n = 29) undertook assessments of isometric mid-thigh pull (IMTP), bilateral and unilateral countermovement jumps (CMJ) and drop jumps (DJ; from 40 and 20 cm, respectively), and assessment of acceleration (10 m), a 5 m weighted sled drive, and a Yo-Yo intermittent recovery test level 1 (Yo-Yo IRTL1). Game statistics of the same players from 92 matches (~23 matches per player) during the 2014–15 season were analysed for effort and performance-based metrics. For forwards, Yo-Yo IRTL1 correlated significantly with; number of tackles made (r = 0.717), first three players at a ruck in both attack (r = 0.568) and defence (r = 0.581), number of effective rucks (r = 0.630), total possessions (r = 0.522), passes made (r = 0.651), percentage of carries over the gainline (r = 0.610), effective ruck success (r = 0.600), tackle success (r = 0.540), and the number of turnovers made (r = 0.518). Drop jump performance in forwards was associated with; the number of clean breaks (r = 0.558), dominant collisions (r = 0.589), and offloads (r = 0.594). For backs, the sled-drive test correlated with; number of carries (r = -0.751), first three players at an attacking ruck (r = -0.613), effective attacking rucks (r = -0.584), number of dominant collisions (r = -0.792) and offloads (r = -0.814). Likewise, for backs, IMTP peak force was related to; the number of possessions (r = 0.793), passes made (r = 0.792), effective attacking ruck percentage (r = 0.628), and the number of offloads (r = 0.621) whilst relative peak force correlated with; the percentage of carries over the gainline (r = 0.533), percent tackle success (r = 0.603) and effective attacking ruck percentage (r = 0.584). Regression analyses highlighted that only a small number of variables (i.e., carries, tackles, attacking and defensive first three at ruck) returned practically achievable changes (&#60;20%) in physical qualities. In spite of this, and while leaving scope identification of further physical and/or performance predictors, greater strength, power and intermittent running performance were positively related to match-derived KPIs during competition. This may provide a basis for better integrating the strategies used by physical and technical performance-focused coaching staff to improve key performance indicators, and thus match performance, of rugby union players.
published_date 2018-12-31T03:54:36Z
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score 11.036706

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