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Symmetry 2018, 10(9), 416; https://doi.org/10.3390/sym10090416

Intrasession Reliability of the Tests to Determine Lateral Asymmetry and Performance in Volleyball Players

Laboratory of Sports Performance, Physical Condition and Wellness, Faculty of Education and Sport Sciences, University of Vigo, 36005 Pontevedra, Spain
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Received: 15 June 2018 / Revised: 14 September 2018 / Accepted: 16 September 2018 / Published: 19 September 2018
(This article belongs to the Special Issue Symmetry-Related Activity in Mid-Level Vision)
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Abstract

The development of lateral asymmetries in athletes could have an influence on performance or injuries. The aim of this study was to determine the within-day reliability of the symmetry tests and the performance tests, and explore the relationship between them. Eighteen male volleyball players (18.1 ± 2.1 years) participated in this study. Seven lateral symmetry assessments were used, namely: lateral symmetry through tensiomyography (LS), active knee extension (AKE), Y-balance test (YBT), muscular electrical activity in attack jump (MEA-AJ), single-leg squat jump (SLSJ), triple hop test for distance (THTD), and bilateral maximum repetition in leg press (1RMSL); and three volleyball performance tests, namely: the T-test, counter-movement jump (CMJ), and attack jump (AJ). Three in-day measurements were taken from each volleyball player after the recovery was completed. The reliability was calculated through the intraclass correlation coefficient and the coefficient of variation, and the relationship was calculated through Pearson’s bivariate correlation coefficient (p < 0.05). The results indicate that AKE, YBT, and LS are the symmetry tests with increased reproducibility. THTD correlates positively with the AKE test and 1RMSL test, and a greater symmetry in the YBT correlates with a greater performance in the CMJ and AJ performance tests. In conclusion, AKE, LS, and YBT are the best tests to determine, with reliability, the asymmetries in volleyball players, and a greater symmetry in the YBT seems to influence the height of bilateral vertical jump. View Full-Text
Keywords: asymmetries; unilateral prevalence; strength imbalance; lower extremities; reproducibility; validity; team sports asymmetries; unilateral prevalence; strength imbalance; lower extremities; reproducibility; validity; team sports
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Iglesias-Caamaño, M.; Carballo-López, J.; Álvarez-Yates, T.; Cuba-Dorado, A.; García-García, O. Intrasession Reliability of the Tests to Determine Lateral Asymmetry and Performance in Volleyball Players. Symmetry 2018, 10, 416.

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