Cargando…
Convergent validity and reliability of a novel repeated agility protocol in junior rugby league players
Background: : Rugby league involves repeated, complex, and high intensity change-of-direction (COD) movements with no existing test protocols that specifically assesses these multiple physical fitness components simultaneously. Thus, the current study examined the convergent validity of a repeated I...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
F1000 Research Limited
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8577058/ https://www.ncbi.nlm.nih.gov/pubmed/34804503 http://dx.doi.org/10.12688/f1000research.23129.3 |
_version_ | 1784596001225441280 |
---|---|
author | Nicholls, Anthony Leicht, Anthony Connor, Jonathan Halliday, Aaron Doma, Kenji |
author_facet | Nicholls, Anthony Leicht, Anthony Connor, Jonathan Halliday, Aaron Doma, Kenji |
author_sort | Nicholls, Anthony |
collection | PubMed |
description | Background: : Rugby league involves repeated, complex, and high intensity change-of-direction (COD) movements with no existing test protocols that specifically assesses these multiple physical fitness components simultaneously. Thus, the current study examined the convergent validity of a repeated Illinois Agility (RIA) protocol with the repeated T-agility protocol, and the repeatability of the RIA protocol in adolescent Rugby League players. Furthermore, aerobic capacity and anaerobic and COD performance were assessed to determine whether these physical qualities were important contributors to the RIA protocol. Methods: Twenty-two junior Rugby League players completed 4 sessions with each separated by 7 days. Initially, physical fitness characteristics at baseline (i.e., Multi-stage Shuttle test, countermovement jump, 30-m sprint, single-effort COD and repeated sprint ability [RSA]) were assessed. The second session involved a familiarisation of RIA and repeated T-agility test (RTT) protocols. During the third and fourth sessions, participants completed the RIA and RTT protocols in a randomised, counterbalanced design to examine the validity and test-retest reliability of these protocols. Results: For convergent validity, significant correlations were identified between RIA and RTT performances (r= >0.80; p<0.05). For contributors to RIA performance, significant correlations were identified between all baseline fitness characteristics and RIA (r = >0.71; p < 0.05). Reliability of the RIA protocol was near perfect with excellent intra-class correlation coefficient (0.87-0.97), good ratio limits of agreement (×/÷ 1.05-1.06) and low coefficient of variations (1.8-2.0%). Conclusions: The current study has demonstrated the RIA to be a simple, valid and reliable field test for RL athletes that can provide coaches with information about their team’s ability to sustain high intensity, multi-directional running efforts. |
format | Online Article Text |
id | pubmed-8577058 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | F1000 Research Limited |
record_format | MEDLINE/PubMed |
spelling | pubmed-85770582021-11-18 Convergent validity and reliability of a novel repeated agility protocol in junior rugby league players Nicholls, Anthony Leicht, Anthony Connor, Jonathan Halliday, Aaron Doma, Kenji F1000Res Research Article Background: : Rugby league involves repeated, complex, and high intensity change-of-direction (COD) movements with no existing test protocols that specifically assesses these multiple physical fitness components simultaneously. Thus, the current study examined the convergent validity of a repeated Illinois Agility (RIA) protocol with the repeated T-agility protocol, and the repeatability of the RIA protocol in adolescent Rugby League players. Furthermore, aerobic capacity and anaerobic and COD performance were assessed to determine whether these physical qualities were important contributors to the RIA protocol. Methods: Twenty-two junior Rugby League players completed 4 sessions with each separated by 7 days. Initially, physical fitness characteristics at baseline (i.e., Multi-stage Shuttle test, countermovement jump, 30-m sprint, single-effort COD and repeated sprint ability [RSA]) were assessed. The second session involved a familiarisation of RIA and repeated T-agility test (RTT) protocols. During the third and fourth sessions, participants completed the RIA and RTT protocols in a randomised, counterbalanced design to examine the validity and test-retest reliability of these protocols. Results: For convergent validity, significant correlations were identified between RIA and RTT performances (r= >0.80; p<0.05). For contributors to RIA performance, significant correlations were identified between all baseline fitness characteristics and RIA (r = >0.71; p < 0.05). Reliability of the RIA protocol was near perfect with excellent intra-class correlation coefficient (0.87-0.97), good ratio limits of agreement (×/÷ 1.05-1.06) and low coefficient of variations (1.8-2.0%). Conclusions: The current study has demonstrated the RIA to be a simple, valid and reliable field test for RL athletes that can provide coaches with information about their team’s ability to sustain high intensity, multi-directional running efforts. F1000 Research Limited 2021-11-22 /pmc/articles/PMC8577058/ /pubmed/34804503 http://dx.doi.org/10.12688/f1000research.23129.3 Text en Copyright: © 2021 Nicholls A et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Nicholls, Anthony Leicht, Anthony Connor, Jonathan Halliday, Aaron Doma, Kenji Convergent validity and reliability of a novel repeated agility protocol in junior rugby league players |
title | Convergent validity and reliability of a novel repeated agility protocol in junior rugby league players |
title_full | Convergent validity and reliability of a novel repeated agility protocol in junior rugby league players |
title_fullStr | Convergent validity and reliability of a novel repeated agility protocol in junior rugby league players |
title_full_unstemmed | Convergent validity and reliability of a novel repeated agility protocol in junior rugby league players |
title_short | Convergent validity and reliability of a novel repeated agility protocol in junior rugby league players |
title_sort | convergent validity and reliability of a novel repeated agility protocol in junior rugby league players |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8577058/ https://www.ncbi.nlm.nih.gov/pubmed/34804503 http://dx.doi.org/10.12688/f1000research.23129.3 |
work_keys_str_mv | AT nichollsanthony convergentvalidityandreliabilityofanovelrepeatedagilityprotocolinjuniorrugbyleagueplayers AT leichtanthony convergentvalidityandreliabilityofanovelrepeatedagilityprotocolinjuniorrugbyleagueplayers AT connorjonathan convergentvalidityandreliabilityofanovelrepeatedagilityprotocolinjuniorrugbyleagueplayers AT hallidayaaron convergentvalidityandreliabilityofanovelrepeatedagilityprotocolinjuniorrugbyleagueplayers AT domakenji convergentvalidityandreliabilityofanovelrepeatedagilityprotocolinjuniorrugbyleagueplayers |