دورية أكاديمية
Discrete Hamstring: Quadriceps Strength Ratios Do Not Represent Angle-Specific Ratios in Premier League Soccer Players.
| العنوان: | Discrete Hamstring: Quadriceps Strength Ratios Do Not Represent Angle-Specific Ratios in Premier League Soccer Players. |
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| المؤلفون: | Lunn DE; Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom; and., Nicholson G; Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom; and., Cooke M; Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom; and., Crespo R; Leeds United Football Club, Leeds, United Kingdom., Robinson T; Leeds United Football Club, Leeds, United Kingdom., Price RJ; Leeds United Football Club, Leeds, United Kingdom., Walker J; Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom; and. |
| المصدر: | Journal of strength and conditioning research [J Strength Cond Res] 2023 Dec 01; Vol. 37 (12), pp. 2417-2422. Date of Electronic Publication: 2023 Oct 08. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Human Kinetics Pub Country of Publication: United States NLM ID: 9415084 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1533-4287 (Electronic) Linking ISSN: 10648011 NLM ISO Abbreviation: J Strength Cond Res Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Champaign, IL : Human Kinetics Pub., c1993- |
| مواضيع طبية MeSH: | Soccer* , Hamstring Muscles*, Humans ; Male ; Adolescent ; Young Adult ; Adult ; Torque ; Quadriceps Muscle ; Knee Joint ; Muscle Strength |
| مستخلص: | Abstract: Lunn, DE, Nicholson, G, Cooke, M, Crespo, R, Robinson, T, Price, RJ, and Walker, J. Discrete hamstring: quadriceps strength ratios do not represent angle-specific ratios in Premier League soccer players. J Strength Cond Res 37(12): 2417-2422, 2023-This study compared angle-specific hamstring:quadriceps (H:Q) ratios with their discrete counterparts during strength testing in professional male soccer players. Twenty-seven professional English Premier League soccer players were recruited for this study (age: 22 ± 4 years; stature: 1.81 ± 0.08 m; body mass: 74.7 ± 6.5 kg). Isokinetic testing of the knee flexors and extensors was conducted concentrically at two angular velocities (60° and 240°·s -1 ) and eccentrically (for the knee flexors only) at 30°·s -1 . Conventional H:Q ratio was calculated as the ratio between peak joint moment in the flexors and extensors at 60°·s -1 . Functional H:Q ratio was calculated as the peak joint moment in the flexors during the eccentric condition and the extensors at 240°·s -1 . Discrete conventional and functional H:Q ratios were 0.56 ± 0.06 and 1.28 ± 0.22, respectively. The residual differences between discrete values and angle-specific residual values were 13.60 ± 6.56% when normalized to the magnitude of the discrete value. For the functional ratios, the normalized residual was 21.72 ± 5.61%. Therefore, neither discrete ratio was representative of angle-specific ratios, although the conventional ratio had lower error overall. Therefore, practitioners should consider H:Q ratio throughout the full isokinetic range of motion, not just the discrete ratio calculated from peak joint moments, when designing and implementing training programs or monitoring injury risk, recovery from injury, and readiness to return to play. (Copyright © 2023 National Strength and Conditioning Association.) |
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| تواريخ الأحداث: | Date Created: 20231010 Date Completed: 20231129 Latest Revision: 20231129 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1519/JSC.0000000000004574 |
| PMID: | 37815243 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1533-4287 |
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| DOI: | 10.1519/JSC.0000000000004574 |