Reliability of a musculoskeletal profiling test battery in elite academy soccer players

Grazette, N, Mcallister, S, Ong, CW, Sunderland, C ORCID: https://orcid.org/0000-0001-7484-1345, Nevill, M ORCID: https://orcid.org/0000-0003-2498-9493 and Morris, JG ORCID: https://orcid.org/0000-0001-6508-7897, 2020. Reliability of a musculoskeletal profiling test battery in elite academy soccer players. PLoS ONE, 15 (7): e0236341. ISSN 1932-6203

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Abstract

The study aimed to quantify the measurement error / reliability of a musculoskeletal profiling test battery administered in young, elite academy soccer players, and to examine if the order in which the test battery was administered, and who it was administered by, influenced reliability. Players (n = 75; age 12–20 years; stature 1.47–1.95 m; body mass 36–89 kg) from U-12 to U-23 age groups were assigned to either: 1) intra-rater-fixed order; 2) intra-rater-non-fixed order; 3) inter-rater-fixed order; or, 4) inter-rater-non-fixed order groups. On two separate occasions separated by 3 to 7 days, 12 raters conducted a musculoskeletal profiling test battery comprising 10 tests (Supine Medial Hip Rotation, Supine Lateral Hip Rotation, Hamstring 90/90, Prone Medial Hip Rotation [degrees]; Combined Elevation, Thoracic Rotation, Weight-Bearing Dorsiflexion, Y-Balance [centimetres]; Beighton, Lumbar Quadrant [categorical]). The measurement error / reliability for tests measured in degrees and centimetres was evaluated using the intraclass correlation (relative reliability), coefficient of variation and ratio limits of agreement (absolute reliability). Intraclass correlations varied from 0.04 (“poor”) to 0.95 (“excellent”), coefficient of variation from 2.9 to 43.4%, and the ratio limits of agreement from 1.058 (*/÷ 1.020) to 2.026 (*/÷ 1.319) for the tests measured in degrees and centimetres. The intraclass correlation, coefficient of variation and ratio limits of agreement were smallest for five out of eight tests measured in degrees and centimetres when the tests were administered in an intra-rater-fixed test order. These findings emphasise that different testing methods, and the administration of a musculoskeletal profiling test battery using a less than optimal design, will influence measurement error and hence test reliability. These observations need to be considered when investigating musculoskeletal function and age, injury, training or asymmetry in young, elite academy soccer players.

Item Type:	Journal article
Publication Title:	PLoS ONE
Creators:	Grazette, N., Mcallister, S., Ong, C.W., Sunderland, C., Nevill, M. and Morris, J.G.
Publisher:	Public Library of Science
Date:	23 July 2020
Volume:	15
Number:	7
ISSN:	1932-6203
Identifiers:	Number Type 10.1371/journal.pone.0236341 DOI 1350201 Other
Rights:	Copyright: © 2020 Grazette et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Divisions:	Schools > School of Science and Technology
Record created by:	Jill Tomkinson
Date Added:	04 Aug 2020 16:01
Last Modified:	31 May 2021 15:18
URI:	https://irep.ntu.ac.uk/id/eprint/40326

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