Investigation of the Relationships between Isokinetic Leg Strength, Sprint and Agility Performance in Collegiate American Football Players

Objective: The purpose of this study was to investigate the relationship between absolute isokinetic knee flexion and extension strength, and sprint and agility performance in collegiate male American Football players. Materials and Methods: Twenty-six collegiate male players aged 19-27 years with at least a year of experience in playing American Football participated in the study. The players were tested for absolute isokinetic knee flexion and extension peak torque, sprint, and agility performance over two different days with at least 72-hour rest interval between tests. Knee flexion and extension peak torque were measured by means of an isokinetic dynamometer (HUMAC NORM, USA) at angular velocities of 60°·s-1 , 150°·s-1 , and 300°·s-1 for both knees. Sprint performance was evaluated with 40-yard dash and agility was evaluated with pro-agility tests, respectively. Results: The study demonstrated that 40-yard dash and pro-agility test results did not correlate with any measures of isokinetic knee flexion and extension peak torque (p>0.05). Conclusion: The results of this study indicate that isokinetic knee flexion and extension peak torque are not good predictors of sprint and agility performance in male collegiate American Football players. Additional research that will also evaluate relative (Nm.kg-1 ) isokinetic strength may be required to elucidate whether a correlation between isokinetic strength, and sprint and agility performance or perhaps other measures of performance exist for American Football players.

Üniversiteli Amerikan Futbolu Oyuncularında İzokinetik Bacak Kuvveti, Sprint ve Çeviklik Performansı Arasındaki İlişkilerin İncelenmesi

Amaç: Bu çalışmanın amacı, üniversiteli erkek Amerikan Futbolu oyuncularında izokinetik diz fleksiyon ve ekstansiyon mutlak kuvveti ile sprint ve çeviklik performansı arasındaki ilişkilerin araştırılmasıdır. Gereç ve Yöntemler: Çalışmaya, en az bir yıllık Amerikan Futbolu deneyimi olan 19- 27 yaş aralığında 26 erkek Amerikan Futbolu oyuncusu katıldı. Oyuncular, en az 72 saat arayla iki farklı günde izokinetik diz fleksiyon ve ekstansiyon mutlak zirve tork kuvveti, sprint ve çeviklik performansı açısından test edildi. Diz fleksiyon ve ekstansiyon zirve tork kuvveti (HUMAC NORM, USA) izokinetik dinamometre ile 60°·s-1 , 150°·s-1 ve 300°·s-1 ‘lik açısal hızlarda her iki dizde ölçüldü. Oyuncuların sprint ve çeviklik performansları sırasıyla 40 yard sprint testi pro-agility testi ile değerlendirildi. Bulgular: Çalışma, 40 yarda sprint testi ve “pro-agility” testi sonuçları ile herhangi bir izokinetik diz fleksiyon ve ekstansiyon zirve tork kuvveti arasında korelasyon olmadığını gösterdi (p>0.05). Sonuç: Çalışmanın sonuçları Üniversiteli erkek Amerikan Futbolu Oyuncularında izokinetik diz fleksiyon ve ekstansiyon zirve tork kuvvet değerlerinin, sprint ve çeviklik performansı için iyi bir belirteç olmadığını gösterdi. Amerikan Futbolu oyuncularında izokinetik kuvvet ile sprint ve çeviklik performansı arasında korelasyon olup olmadığının açıklanabilmesi için bağıl izokinetik kuvveti değerlendirecek (Nm.kg-1 ) ek çalışmalar gerekmektedir.

Kaynakça

1. Severo-Silveira L, Fritsch CG, Marques VB, et al. Isokinetic performance of knee flexor and extensor muscles in American football players from Brazil. Rev Bras Cineantropom Desempenho Hum. 2017;19(4):426-35.

2. Özkan A, Arıburun B, Kin-İşler A. Relationships of body composition, isokinetic knee strength and anaerobic performance in American football players. Türkiye Klinikleri J Sports Sci. 2009;1(1):47-52.

3. Pincivero DM, Bompa TO. A physiological review of American football. Sports Med. 1997;23(4):247-60.

4. Kerr ZY, Yeargin S, Valovich McLeod TC, et al. Comprehensive coach education and practice contact restriction guidelines result in lower injury rates in youth American football. Orthop J Sports Med. 2015;3(7):2325967115594578.

5. McGee KJ, Burkett LN. The National Football League combine: a reliable predictor of draft status? J Strength Cond Res. 2003;17(1):6-11.

6. Newman MA, Tarpenning KM, Marino FE. Relationships between isokinetic knee strength, single-sprint performance, and repeated-sprint ability in football players. J Strength Cond Res. 2004;18(4):867-72.

7. Suchomel TJ, Nimphius S, Stone MH. The importance of muscular strength in athletic performance. Sports Med. 2016;46(10):1419-49.

8. Śliwowski R, Grygorowicz M, Hojszyk R, et al. The isokinetic strength profile of elite soccer players according to playing position. PloS One. 2017;12(7):e0182177.

9. Juneja H, Verma SK, Khanna GL. Isometric strength and its relationship to dynamic performance: a systematic review. J Exerc Sci Physiother. 2010;6(2):60-9.

10. Weng P, Janssen J, Richards JD, et al. Validity of two clinical knee strength assessments compared to the reference standard. Int J Physiother Res. 2015;3(6):1264-70.

11. Zvijac JE, Toriscelli TA, Merrick WS, et al. Isokinetic concentric quadriceps and hamstring normative data for elite collegiate American football players participating in the NFL Scouting Combine. J Strength Cond Res. 2014;28(4);875-83.

12. Chelly MS, Hermassi S, Shephard RJ. Relationships between power and strength of the upper and lower limb muscles and throwing velocity in male handball players. J Strength Cond Res. 2010;24(6):1480-7.

13. Newton RU, Gerber A, Nimphius S, et al. Determination of functional strength imbalance of the lower extremities. J Strength Cond Res. 2006;20(4):971-7.

14. Morriss CJ, Tolfrey K, Coppack RJ. Effects of shortterm isokinetic training on standing long-jump performance in untrained men. J Strength Cond Res. 2001;15(4):498-502.

15. González-Ravé JM, Juárez D, Rubio-Arias JÁ, et al. Isokinetic leg strength and power in elite handball players. J Hum Kinet. 2014;41(1):227-33.

16. Cometti G, Maffiuletti NA, Pousson M, et al. Isokinetic strength and anaerobic power of elite, subelite and amateur French soccer players. Int J Sports Med. 2001;22(1):45-51.

17. İnal HS, Erbuğ B, Kotzamanidis C. Sprinting, isokinetic strength, and range of motion of ankle joints in Turkish male and female national sprinters may have a relationship. Turk J Med Sci. 2012;42(6):1098-104.

18. Tsiokanos A, Kellis E, Jamurtas A, et al. The relationship between jumping performance and isokinetic strength of hip and knee extensors and ankle plantar flexors. Isokinet Exerc Sci. 2002;10(2):107-15.

19. Alemdaroğlu U. The relationship between muscle strength, anaerobic performance, agility, sprint ability and vertical jump performance in professional basketball players. J Hum Kinet. 2012;31(1):149-58.

20. Çelenk B, Öz E, Öner AG, et al. The relationship between isokinetic knee strength and jumping in young male volleyball players. Turk J Sport Exerc. 2019;21(1):12-5.

21. Yapıcı A, Özkol MZ, Özçaldıran B, et al. The relationship between throwing velocity with and without leg movements and isokinetic muscle strength in elite water polo players. Eur J Phys Ed Sport Sci. 2017;3(1):42- 50.

22. Ebert A, Leigh S, Konz S. A correlation between vertical jump and isokinetic measurements in female bas-ketball athletes. NMU Commons: ISBS Proceedings Archive. 2018;36:378-81.

23. Hoff J, Almåsbakk B. The effects of maximum strength training on throwing velocity and muscle strength in female team-handball players. J Strength Cond Res. 1995;9(4):255-8.

24. Spiteri T, Nimphius S, Hart NH, et al. Contribution of strength characteristics to change of direction and agility performance in female basketball athletes. J Strength Cond Res. 2014;28(9):2415-23.

25. Negrete R, Brophy J. The relationship between isokinetic open and closed chain lower extremity strength and functional performance. J Sport Rehabil. 2000;9(1):46-61.

26. Jones MT, Lorenzo DC. Assessment of power, speed, and agility in athletic, preadolescent youth. J Sports Med Phys Fitness. 2013;53(6):693-700.

27. Trinity Sports Performance. Pro agility shuttle (5-10- 5). https://trinityp3performance.com /combine/proagility-shuttle/ Retrieved: May 20, 2019.

28. Brooks KA, Clark SL, Dawes JJ. Isokinetic strength and performance in collegiate women’s soccer. J Nov Physiother. 2013;28(Suppl 3):S001.

29. Anderson MA, Gieck JH, Perrin D, et al. The relationships among isometric, isotonic, and isokinetic concentric and eccentric quadriceps and hamstring force and three components of athletic performance. J Orthop Sports Phys Ther. 1991;14(3):114-20.

Kaynak Göster

Spor Hekimliği Dergisi
  • ISSN: 1300-0551
  • Yayın Aralığı: Yılda 4 Sayı
  • Başlangıç: 1966

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