Further improvement of vertical jumping performance of volleyball players through targeted plyometric training
Hedef gösterilerek yapılan pliometrik çalışmalar voleybolcuların dikey sıçrama performansını daha fazla geliştiriyor
DOI:
https://doi.org/10.14687/jhs.v16i4.5831Keywords:
Volleyball, overhead target, jump, extrinsic motivation, plyometric, Voleybol, baş üstü hedef, sıçrama, dışsal motivasyon, pliometrikAbstract
Background and Aim: The purpose of this study was to investigate the effect of jumping exercises with an overhead target on vertical jump performance of volleyball players. Method: Eighteen male volleyball players (age 21.3 ± 1.8 years, height 183.8 ± 10.0 cm, weight 78.44 ± 12.0 kg) participated in the study. The participants were divided into two groups randomly. Before the study, as a pre-test, jumping heights of all participants were measured by the Sargent method. Then, three days a week, for a total of four weeks, the control group performed 10 vertical jump exercises without targeting, while the study group performed 10 jumps with 10% more of the pretest result after the standard volleyball training. The target of a participant who reached the target three times in one session was increased by 10%. As a final test, maximal jump heights of both groups were measured again with the Sargent method. A 2X2 repeated measures analysis of variance was used to determine vertical jump height changes according to pre-test and post-test measurements of the groups.
Results: During the study, the maximal jump values of the volleyball players were found to increase by 13% (55,66 ± 6,7 cm) compared to the control group (50,56 ± 7,70 cm). Conclusion: In branches such as volleyball, where jump performance is the most important determinant of success, it is suggested that exercises should be performed through an overhead target to improve vertical jump performance.
Extended English summary is in the end of Full Text PDF (TURKISH) file.
Özet
Giriş ve Amaç: Bu çalışmanın amacı baş üstü hedef göstererek yapılan dikey sıçrama egzersizlerinin voleybol oyuncularının dikey sıçrama performansına olan etkisini araştırmaktır. Yöntem: Çalışmaya on sekiz erkek voleybol (yaş: 21,3±1,8 yıl, boy: 183,8±10,0 cm, vücut ağırlığı: 78,44±12,0 kg) oyuncusu katılmıştır. Katılımcılar rastgele yöntemle iki guruba ayrılmıştır. Çalışma öncesi tüm katılımcıların ön test olarak Sargent yöntemiyle sıçrama yükseklikleri ölçülmüştür. Daha sonra haftada üç gün, toplam dört hafta boyunca standart antrenman sonrası kontrol grubu hedef gösterilmeden 10 dikey sıçrama egzersizi yaparken, çalışma grubu ön test sonucunun %10 fazlası hedef gösterilerek 10 sıçrama çalışması yapmışlardır. Gösterilen hedefe bir çalışmada 3 defa ulaşan bir katılımcının hedefi %10 arttırılmıştır. Son test olarak her iki grubunda Sargent yöntemiyle maksimal sıçrama yükseklikleri tekrar ölçülmüştür. Grupların ön test ve son test ölçümlerine göre dikey sıçrama yükseklik değişimlerinin belirlenmesi için 2X2 tekrarlı ölçümler varyans analizi uygulanmıştır. Bulgular: Çalışma sırasında hedef göstererek (55,66±6,7 cm) yapılan egzersizlerin kontrol grubuna oranla (50,56±7,70 cm) voleybolcularda maksimal sıçrama değerlerinin daha fazla arttığı (%13) tespit edilmiştir. Tartışma-Sonuç: Voleybol gibi dikey sıçrama performansının başarının en önemli belirleyicisi olduğu branşlarda sıçrama performansının geliştirilmesi için baş üstü hedef gösterilerek yapılacak egzersizler önerilmektedir.
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