TÜLİN ATAN, M. Yalçın TAŞMEKTEPLİGİL, Seydi A. AĞAOĞLU, MENDERES KABADAYI, ÖZGÜR BOSTANCI, OSMAN İMAMOĞLU

Drop sıçramada optimal platform yüksekliğinin belirlenmesi

Bu çalışma, drop sıçramada optimal platform yüksekliğini belirlemek amacıyla yapılmıştır. Çalışmaya Beden Eğitimi ve Spor Yüksekokulu Antrenörlük bölümünde okuyan ve aktif olarak spor hayatını devam ettiren toplam 58 öğrenci (yaş; 21,77 ± 1,47 yıl) gönüllü olarak katılmıştır. Bu çalışma Ondokuz Mayıs Üniversitesi Tıp Fakültesinin etik kurulu kararına uygun olarak yapılmıştır. Çalışmada, 6 farklı platform yüksekliğinden (10cm, 20cm, 30cm, 40cm, 50cm, 60cm) drop sıçrama yaptırılmıştır. Drop sıçrama değerlerinin belirlenmesi New Test-Power Timer System 300 Series aleti kullanılarak yapılmıştır. Sıçrama yüksekliği, kontak süresi (yere temas süresi), sıçrama gücü ve relatif sıçrama gücü değerlerine bakılmış ve 6 ayrı platform yüksekliği için bulunan değerler birbirleriyle karşılaştırılmıştır. Farklı platform yüksekliklerinden yapılan drop sıçrama değerleri arasında fark olup olmadığına bakmak amacıyla repeated measures testi ve Bonferroni düzeltmeli eşli karşılaştırma testi kullanılmıştır. 10cm yüksekliğindeki platformdan drop sıçrama yapıldığında deneklerin sıçrama yüksekliği; 20cm, 30cm, 40cm, 50cm ve 60cm platform yüksekliklerinden yapılan drop sıçramadaki sıçrama yüksekliği değerlerinden istatistiksel olarak yüksek bulunmuştur (p0.05). 10cm yüksekliğindeki platformdan drop sıçrama yapıldığında deneklerin sıçrama gücü ve relatif sıçrama gücü 60cm platform yüksekliğinden yapılan drop sıçramadaki sıçrama sıçrama gücü ve relatif sıçrama gücü değerlerinden istatistiksel olarak yüksek bulunmuştur (p

Determining optimal platform height in drop jump

The purpose of this study was to examine the optimal platform height in drop jump. 58 students (age; 21,77 ± 1,47 years) attending Physical Education and Sports High School Trainer Department participated the study. This study was made by the consent document according to the Research Ethics of Ondokuz Mayıs University. Subjects performed a series of drop jumps from platform heights of 10, 20, 30, 40, 50 and 60 cm. Jump height, contact time, jump power and relative jump power values were measured by the New Test-Power Timer System 300 Series Instrument. The values obtained from the 6 different platform heights were compared by repeated measures test and Bonferroni pairwise comparison test. Results revealed that, drop jumps from 10cm platform level produced the highest jump height value than 20, 30, 40, 50 and 60 cm platform levels (p<0.05). The contact times did not differ between the platform height levels (p>0.05). 10cm platform level produced higher jump power and relative jump power values than 60cm platform level (p<0.05). Conclusively, optimal platform height was found 10cm and platform height of 10cm is suggested in drop jump trainings.

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1. Anonim (2007) Pliometrik Antrenman Metodunun Genç Atletlere Uygulanması Esnasında Dikkate Alınması Gereken Unsurlar. Erişim: http://www.odevsel.com.bilim/pliometrik...html. Erişim tarihi: 26.06.2011.
2. Asmussen E, Bonde-Peterson F. Storage of elastic energy in skeletal muscles in man. Acta Physiologica
3. Bobbert MF, Huijing PA, Van Ingen Schenau G J. Drop jumping I: The influence of jumping technique on the biomechanics of jumping. Medicine and Science in Sports and Exercise, 1987a; 19:332-338.
4. Bobbert MF, Huijing PA, Van Ingen Schenau G J. Drop jumping II: The influence of jumping technique on the biomechanics of jumping. Medicine and Science in Sports and Exercise, 1987b; 19:339-346.
5. Bobbert MF. Drop jumping as a training method for jumping ability. Sports Medicine, 1990; 9(1):7-22.
6. Bosco C, Vitasalo JT, Komi PV, Luhtanen P. Combined effect of elastic energy and myoelectrical potentiation during stretch-shortening cycle exercise. Acta Physiologica Scandinavica, 1982; 114(4):557-565.
7. Bosco C, Montanari G, Tarkkai I, Latteri F, Cozzi M, Iachelli G, et al. The effect of pre-stretch on mechanical efficiency of human skeletal muscle. Acta Physiologica Scandinavica, 1987; 131(3):323–329.
8. Brown ME, Mayhew JL, Boleach LW. Effect of plyometric training on vertical jump performance in high school basketball players. J. Sports Med. Phys. Fitness,1986; 26:1–4.
9. Chu, D.A. Jumping into Plyometrics. London : Prentice Hall Publishers. 1992: 3-29.
10. Clutch D, Wilton M, Mcgown C, Bryce GR. The effect of depth jumps and weight training on leg strength and vertical jump. Res. Q. Exerc. Sport, 1983; 54:5–10.
11. Ebben WP, Blackard DO. Strength and conditioning practices of National Football League strength and conditioning coaches. Journal of Strength and Conditioning Research,2001; 15:48–58.
12. Fatouros, IG, Jamurtas AZ, Leontsini, D, Taxildaris K, Aggelousis N, Kostopoulos N, Buckenmeyer P. Evaluation of plyometric exercise training, weight training, and their combination on vertical jumping performance and leg strength. Journal of Strength and Conditioning Research, 2000; 14(4):470–476.
13. Gulick, DT, Fagnani J, Long M, Morris K, Hartzell B. Parameters that influence vertical jump height. Sport Journal, 2008; 11(3):1.
14. Hewett TE, Stroupe A.L, Nance TA, Noyes FR. Plyometric training in female athletes. Decreased impact forces and increased hamstring torques. Am. J. Sports Med, 1996; 24(6):765-773.
15. Komi PV, Bosco C. Utilization of stored elastic energy in leg extensor muscles by men and women. Medicine and Science in Sports and Exercise, 1978; 10:261-265.
16. Kollias, I, Panoutsakopoulos V, Papaiakovoui G. Comparing jumping ability among athletes of various sports: Vertical drop jumping from 60 centimeters. Journal of Strength and Conditioning Research, 2004; 18(3):546–550
17. Lees A, Fahmi E. Optimal drop heights for plyometric training. Ergonomics, 1994; 37:141–148.
18. Makuruk H., Sacewicz T. The effect of drop height and body mass on drop jump intensity. Biology of Sport, 2011; 28:63-67.
19. Malisoux L, Francaux M, Nielens H, Theisen, D. Stretch-shortening cycle exercises: an effective training paradigm to enhance power output of human single muscle fibers. J. Appl Physiol, 2006; 100(3):771–779.
20. Markovic, G. Does plyometric training improve vertical jump height? A meta-analytical review. Biritish Journal of Sports Medicine, 2007; 41:349-355.
21. Markovic G, Jukic I, Milanovic D, Metikos, D. Effects of sprint and plyometric training on muscle function and athletic performance. Journal of Strength and Conditioning Research, 2007; 21(2):543–549.
22. Matavulj, D, Kukolj M, Ugarkovic D, Tihanyi J, Jaric S. Effects of plyometric training on jumping performance in junior basketball players. J. Sports Med. Phys. Fitness, 2001; 41(2):159–164.
23. Miller, B.P., Power, S.L.D. Developing power in Athletics through the process of depth jumping. Athletics Coach, 1981; 15(2):10-15.
24. Moynihan PS. Plyometrics: training and exercise. Track and Field Quarterly Review, 1983; 83:52-59.
25. Polhemus R. Plyometric training fort the improvement of Athletic Ability. Scholastic Coach, 1981; 51:68-69.
26. Song Chen-Yi, Peng HT, Kernozek TW, Wang YH. Biomechanical strategy during plyometric barrier jump-influence of drop-jump heights on joint stiffness. International Symposium on Biomechanics in Sports: Confeerence Proceedings Archive, 2010; 28(1).
27. Tınazcı, C. Çoklu Sıçrama Testinin Güvenirliliği ve Geçerliliği. Hacettepe Üniversitesi Sağlık Bilimleri Enstitüsü, Yüksek Lisans Tezi, Ankara. 1996.
28. Voigt M, Simonsen EB, Dyhre-Poulsen P, Klausen K. Mechanical and muscular factors influencing the performance in maximal vertical jumping after different prestretch loads. Journal of Biomechanics, 1995; 28:293–307.
29. Walsh M, Arampatzis A, Schade F, Brüggemann G. The effect of drop jump starting height and contact time on power, work performed, and moment of force. Journal of Strength and Conditioning Research, 2004; 18(3):561-566.
30. Young WB, Pryor JF, Wılson GJ. Effect of instructions on characteristics of countermovement and drop jump performance. J. Strength Cond. Res, 1995; 9:232–236.
31. Young WB, Wilson GJ, Byrne C. A comparison of drop jump training methods: effects on leg extensor strength qualities and jumping performance. Int. J. Sports Med,1999; 20:295-303.
32. Yu B, Hay JG. Angular momentum and performance in the triple jump: A cross sectional analysis. J. Appl. Biomech, 1995; 11:81–102.