Isokinetic performance of knee extensor and flexor musculature in adolescent female handball players

Background: Handball is a sport that requires an extensive variety of movements and has led to an increased incidence of ankle and knee injuries. Specifically, to knee joint, detection and reduction in muscular deficits can help prevent injuries and improve muscular performance. Isokinetic dynamometer is a highly effective and trustworthy assessment tool for such detections. Therefore, the objective of this study was to analyze muscular performance, and the differences between dominant and non-dominant limb of the knee extensors and flexors in adolescent handball athletes. Method: Data of isokinetic evaluation of knee muscles of 19 female handball players was obtained from a database and analyzed. The isokinetic dynamometer was used in a concentric-concentric mode for the knee extensors and flexors at angular velocities of 60°/s, 120°/s, 180°/s and 240°/s. Results: Mean values of peak torque or the flexor/extensor ratio were not statistically significant in the comparison between the limbs at any of the angular velocities. Furthermore, the flexor/extensor ratio values were between 50% and 80% that are described as normal in the literature of knee joint. Conclusions: This study demonstrated that lower-limb dominance does not interfere in the muscular concentric isokinetic performance of the knee extensor and flexor muscles in adolescent handball athletes. Consequently, it can be suggested that handball athletes present lower risk of knee injuries when compared to sports that lead to some type of muscular asymmetries.
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Subjects: handball female youth strength performance knee muscle
Notations: junior sports sport games
Published in: Archivos de medicina del deporte
Published: 2018
Volume: 35
Issue: 3
Pages: 157-161
Document types: article
Language: Spanish
Level: advanced