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Reliability of Repeated Isometric Neck Strength in Rugby Union Players Using a Load Cell Device

Concussion is the most common injury in professional Rugby Union (RU) players, with increasing incidence and severity each year. Strengthening the neck is an intervention used to decrease concussion incidence and severity, which can only be proven effective if strength neck measures are reliable. We...

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Autores principales: Chavarro-Nieto, Christian, Beaven, Martyn, Gill, Nicholas, Hébert-Losier, Kim
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9031103/
https://www.ncbi.nlm.nih.gov/pubmed/35458855
http://dx.doi.org/10.3390/s22082872
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author Chavarro-Nieto, Christian
Beaven, Martyn
Gill, Nicholas
Hébert-Losier, Kim
author_facet Chavarro-Nieto, Christian
Beaven, Martyn
Gill, Nicholas
Hébert-Losier, Kim
author_sort Chavarro-Nieto, Christian
collection PubMed
description Concussion is the most common injury in professional Rugby Union (RU) players, with increasing incidence and severity each year. Strengthening the neck is an intervention used to decrease concussion incidence and severity, which can only be proven effective if strength neck measures are reliable. We conducted a repeated-measures reliability study with 23 male RU players. Neck strength was assessed seated in a ‘make’ test fashion in flexion, extension, and bilateral-side flexion. Flexion-to-extension and left-to-right side ratios were also computed. Three testing sessions were undertaken over three consecutive weeks. Intrasession and intersession reliabilities were assessed using typical errors, coefficient of variations (CV), and intraclass correlation coefficients (ICC). Intrasession reliability demonstrated good-to-excellent relative (ICC > 0.75) and good absolute (CV ≤ 20%) reliability in all directions (ICC = 0.86–0.95, CV = 6.4–8.8%), whereas intersession reliability showed fair relative (ICC: 0.40 to 0.75) and acceptable absolute (CV ≤ 20%) reliability for mean and maximal values (ICC = 0.51–0.69, CV = 14.5–19.8%). Intrasession reliability for flexion-to-extension ratio was good (relative, ICC = 0.86) and acceptable (absolute, CV = 11.5%) and was fair (relative, ICC = 0.75) and acceptable (absolute, CV = 11.5%) for left-to-right ratio. Intersession ratios from mean and maximal values were fair (relative, ICC = 0.52–0.55) but not always acceptable (absolute, CV = 16.8–24%). Assessing isometric neck strength with a head harness and a cable with a load cell device seated in semi-professional RU players is feasible and demonstrates good-to-excellent intrasession and fair intersession reliability. We provide data from RU players to inform practice and assist standardisation of testing methods.
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spelling pubmed-90311032022-04-23 Reliability of Repeated Isometric Neck Strength in Rugby Union Players Using a Load Cell Device Chavarro-Nieto, Christian Beaven, Martyn Gill, Nicholas Hébert-Losier, Kim Sensors (Basel) Article Concussion is the most common injury in professional Rugby Union (RU) players, with increasing incidence and severity each year. Strengthening the neck is an intervention used to decrease concussion incidence and severity, which can only be proven effective if strength neck measures are reliable. We conducted a repeated-measures reliability study with 23 male RU players. Neck strength was assessed seated in a ‘make’ test fashion in flexion, extension, and bilateral-side flexion. Flexion-to-extension and left-to-right side ratios were also computed. Three testing sessions were undertaken over three consecutive weeks. Intrasession and intersession reliabilities were assessed using typical errors, coefficient of variations (CV), and intraclass correlation coefficients (ICC). Intrasession reliability demonstrated good-to-excellent relative (ICC > 0.75) and good absolute (CV ≤ 20%) reliability in all directions (ICC = 0.86–0.95, CV = 6.4–8.8%), whereas intersession reliability showed fair relative (ICC: 0.40 to 0.75) and acceptable absolute (CV ≤ 20%) reliability for mean and maximal values (ICC = 0.51–0.69, CV = 14.5–19.8%). Intrasession reliability for flexion-to-extension ratio was good (relative, ICC = 0.86) and acceptable (absolute, CV = 11.5%) and was fair (relative, ICC = 0.75) and acceptable (absolute, CV = 11.5%) for left-to-right ratio. Intersession ratios from mean and maximal values were fair (relative, ICC = 0.52–0.55) but not always acceptable (absolute, CV = 16.8–24%). Assessing isometric neck strength with a head harness and a cable with a load cell device seated in semi-professional RU players is feasible and demonstrates good-to-excellent intrasession and fair intersession reliability. We provide data from RU players to inform practice and assist standardisation of testing methods. MDPI 2022-04-08 /pmc/articles/PMC9031103/ /pubmed/35458855 http://dx.doi.org/10.3390/s22082872 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chavarro-Nieto, Christian
Beaven, Martyn
Gill, Nicholas
Hébert-Losier, Kim
Reliability of Repeated Isometric Neck Strength in Rugby Union Players Using a Load Cell Device
title Reliability of Repeated Isometric Neck Strength in Rugby Union Players Using a Load Cell Device
title_full Reliability of Repeated Isometric Neck Strength in Rugby Union Players Using a Load Cell Device
title_fullStr Reliability of Repeated Isometric Neck Strength in Rugby Union Players Using a Load Cell Device
title_full_unstemmed Reliability of Repeated Isometric Neck Strength in Rugby Union Players Using a Load Cell Device
title_short Reliability of Repeated Isometric Neck Strength in Rugby Union Players Using a Load Cell Device
title_sort reliability of repeated isometric neck strength in rugby union players using a load cell device
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9031103/
https://www.ncbi.nlm.nih.gov/pubmed/35458855
http://dx.doi.org/10.3390/s22082872
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