Unilateral vs. bilateral hamstring strength assessments: comparing reliability and inter-limb asymmetries in female soccer players
Cuthbert, Matthew, Comfort, Paul, Ripley, Nicholas, McMahon, John J., Evans, Martin and Bishop, Chris 
ORCID: https://orcid.org/0000-0002-1505-1287
(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.
ISSN 0264-0414
[Article]
(doi:10.1080/02640414.2021.1880180)
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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.
| Item Type: | Article |
|---|---|
| Keywords (uncontrolled): | Physical Therapy, Sports Therapy and Rehabilitation, Orthopedics and Sports Medicine |
| Research Areas: | A. > School of Science and Technology > London Sport Institute > Strength and Conditioning at the London Sport Institute |
| Item ID: | 31863 |
| Notes on copyright: | 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.
PDF - Final accepted version (with author's formatting): This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 31 Jan 2021, available online: http://www.tandfonline.com/10.1080/02640414.2021.1880180 |
| Useful Links: | |
| Depositing User: | Chris Bishop |
| Date Deposited: | 21 Jan 2021 09:57 |
| Last Modified: | 29 Nov 2022 17:49 |
| URI: | https://eprints.mdx.ac.uk/id/eprint/31863 |
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