Angle-Specific Isokinetic Metrics Highlight Strength Training Needs of Elite Youth Soccer Players
| Autor: | Steven James Eustace, Richard Michael Page, Matt Greig |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Knee Joint Strength training Isokinetic strength Hamstring Muscles Physical Therapy Sports Therapy and Rehabilitation Dynamic control 030204 cardiovascular system & hematology Concentric Quadriceps Muscle Young Adult 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Soccer Injury prevention medicine Humans Eccentric Orthopedics and Sports Medicine Muscle Strength Range of Motion Articular Resistance Training 030229 sport sciences General Medicine Torque Range of motion Psychology human activities Hamstring Muscle Contraction |
| Zdroj: | Journal of Strength and Conditioning Research. 34:3258-3265 |
| ISSN: | 1064-8011 3258-3265 |
| DOI: | 10.1519/jsc.0000000000002612 |
| Popis: | Eustace, SJ, Page, RM, and Greig, M. angle specific isokinetic metrics highlight strength training needs of elite youth soccer players. J Strength Cond Res 34(11): 3258-3265, 2020-The purpose of this study was to assess traditional and angle-specific isokinetic strength of eccentric knee flexors (eccKFs) and concentric knee extensors (conKEs) between senior professional and youth soccer players. Thirty-four male soccer players (17 senior and 17 youth) were recruited for bilateral assessments at 180, 270, and 60°·s. Peak torque (PT), dynamic control ratio (DCR), angle of peak torque (APT), functional range (FR), angle-specific torque (AST), and angle-specific DCR (DCRAST) were compared. The eccentric knee flexor (eccKF) and conKE PT (p = 0.782) and DCR (p = 0.508) were not different between groups across all angular velocities. Significant differences were identified for eccKF APT (p = 0.018) and FR (p = 0.006), DCRAST at 270°·s (p = 0.031), and in AST data recorded across angular velocities for eccKF and conKE (p = 0.003). Traditional strength measures were not sensitive to playing age, with implications for misinterpretation in training prescription. By contrast, AST data did differentiate between ages. Strength deficits that highlight the muscle contraction type, angular velocity, and joint angle can be manipulated within an individualized training intervention. Given the relevance to injury etiology, this study highlights potential implications for improved assessment strategies to inform training prescription for performance and injury prevention. Given the high number of injuries in adolescent soccer players, and in line with previous recommendations, practitioners should consider using more informed and specific strength and conditioning practices at younger ages. |
| Databáze: | OpenAIRE |
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