Interlimb Asymmetries: The Need for an Individual Approach to Data Analysis

Bishop, C., Lake, J. P., Loturco, I., Papadopoulos, K., Turner, A. and Read, P. (2021) Interlimb Asymmetries: The Need for an Individual Approach to Data Analysis. Journal of Strength and Conditioning Research, 35 (3). pp. 695-701. ISSN 1064-8011

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It has been shown that the magnitude of interlimb asymmetries varies depending on the test selected; however, literature relating to whether asymmetries always favor the same limb is scarce. The aim of this study was to determine whether interlimb asymmetries always favored the same side for common metrics across unilateral strength and jumping-based tests. Twenty-eight recreational sport athletes performed unilateral isometric squats, single-leg countermovement jumps, and single-leg broad jumps with asymmetries in peak force compared across all tests, and eccentric and concentric impulse asymmetries compared between jumps. Mean asymmetries for all tests were low (≤-5.3%), and all interlimb differences for jump tests favored the left limb, whereas asymmetries during the isometric squat favored the right limb. Despite the low mean asymmetry values, individual data highlighted substantially greater differences. Levels of agreement for asymmetries were computed through the Kappa coefficient and ranged from slight to substantial (<0.01-0.79), although concentric impulse asymmetries for jump tests was the only comparison with result in substantial levels of agreement. With asymmetries rarely being present on the same side across tests, these results show that a more individual approach to reporting asymmetries is required, which should help practitioners when designing targeted training interventions for their reduction.

Publication Type: Articles
Additional Information: ** From PubMed via Jisc Publications Router Bishop, C., Lake, J.P., Loturco, I., Papadopoulos, K., Turner, A., & Read, P. (2021). Interlimb Asymmetries: The Need for an Individual Approach to Data Analysis. Journal of strength and conditioning research, 35 3, 695-701 .
Uncontrolled Keywords: Agreement, between-limb differences, individual monitoring, symmetry
Subjects: H Social Sciences > H Social Sciences (General)
Q Science > Q Science (General)
Q Science > QM Human anatomy
Divisions: Academic Areas > Institute of Sport > Area > Exercise Physiology
Related URLs:
SWORD Depositor: Publications Router Jisc
Depositing User: Publications Router Jisc
Date Deposited: 26 Mar 2021 11:02
Last Modified: 26 Mar 2021 11:02

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