Unilateral vs. bilateral hamstring strength assessments: comparing reliability and inter-limb asymmetries in female soccer players
Article
Cuthbert, M., Comfort, P., Ripley, N., McMahon, J., Evans, M. and Bishop, C. 2021. Unilateral vs. bilateral hamstring strength assessments: comparing reliability and inter-limb asymmetries in female soccer players. Journal of Sports Sciences. 39 (13), pp. 1481-1488. https://doi.org/10.1080/02640414.2021.1880180
Type | Article |
---|---|
Title | Unilateral vs. bilateral hamstring strength assessments: comparing reliability and inter-limb asymmetries in female soccer players |
Authors | Cuthbert, M., Comfort, P., Ripley, N., McMahon, J., Evans, M. and Bishop, C. |
Abstract | The aims in the present study were to assess reliability for two unilateral and two bilateral field-based hamstring assessments and compare magnitude, direction and agreement of inter-limb asymmetry between tests and sessions. Twenty-nine female soccer players (age: 21.1±4.5 years; height: 169.7±5.8 cm; body mass: 66.2±6.4 kg) performed three repetitions per leg of unilateral isometric 30° (ISO 30°) and 90° (ISO 90°) knee flexion (KF) tasks, and three repetitions total for a bilateral 90° isometric (kneeling ISO) KF and Nordic hamstring exercise (NHE). Absolute reliability of most methods within- and between-session were acceptable (<10%). Relative reliability within-session demonstrated fair to excellent reliability (ICC≥0.784; lower bound 95%CI ≥0.623). Greater variability in between-session relative reliability was observed during the unilateral tests, demonstrating poor to good (ICC=0.698–0.798; lower bound 95%CI = 0.274–0.638). Bilateral assessments demonstrated similar ranges of poor to excellent (ICC=0.679–0.963; lower bound 95%CI = 0.231–0.790). Agreement between-session for inter-limb asymmetry identification was slight and fair in the unilateral tests, with moderate to substantial agreement demonstrated in the bilateral. Being the most reliable within- and between-sessions, demonstrating substantial agreement in asymmetry between-sessions, the NHE would be most appropriate to identify inter-limb asymmetry and assess chronic changes in hamstring strength. |
Keywords | Physical Therapy, Sports Therapy and Rehabilitation, Orthopedics and Sports Medicine |
Research Group | Strength and Conditioning at the London Sport Institute |
Publisher | Taylor & Francis (Routledge) |
Journal | Journal of Sports Sciences |
ISSN | 0264-0414 |
Electronic | 1466-447X |
Publication dates | |
Online | 31 Jan 2021 |
03 Jul 2021 | |
Publication process dates | |
Deposited | 21 Jan 2021 |
Submitted | 14 Jul 2020 |
Accepted | 20 Jan 2021 |
Output status | Published |
Publisher's version | License |
Accepted author manuscript | |
Copyright Statement | PDF - Published version (with publisher's formatting): © 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way. |
Digital Object Identifier (DOI) | https://doi.org/10.1080/02640414.2021.1880180 |
Language | English |
https://repository.mdx.ac.uk/item/893zx
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