Tenisçilerde İzokinetik Kalça Kuvveti ile İlişkili Motor Özelliklerin İncelenmesi

Öz

Kalçadaki kas güçsüzlüğü nedeniyle değişen kalça kinematiği, alt ekstremitelerin tüm kinetik zincirinin dinamik dengesizliğine sebep olabilir. Bu durum bir taraftan tenise özgü performansı olumsuz etkilerken diğer taraftan pratikte gerçekleştirilen tekrarlı aktiviteler sırasında sporcuların sakatlık eğilimlerinde artış meydana getirebilir. Bu çalışmada, elit düzey tenis oyuncularının çeviklik, dikey sıçrama, esneklik ve izokinetik kalça kuvvetlerinin tespit edilmesi ve izokinetik kalça kuvvetleri ile ilişkili motor özelliklerin tespit edilmesi amaçlandı. Çalışma, 16-20 yaş aralığındaki 15 erkek elit tenisçinin gönüllü katılımı ile yürütüldü. Sporcuların boy, vücut ağırlığı ve vücut kitle indeksi özellikleri tespit edildikten sonra izokinetik kalça kuvvetleri, T çeviklik testi performansları, otur uzan esneklik testi seviyeleri ve dikey sıçrama performansları incelendi. Sonraki aşamada 60o/sn, 180o/sn ve 240o/sn açısal hızlarda izokinetik kalça kuvveti ile sıçrama, çeviklik ve esneklik performansları arasındaki ilişkiler incelendi. Elde edilen sonuçlar, sporcuların izokinetik kalça tepe tork seviyeleri ile esneklik ve sıçrama performansları arasında anlamlı ilişkiler olduğunu, fakat çeviklik performansları ile arasındaki ilişkilerin anlamlı olmadığını gösterdi. Sonuç olarak, elit tenisçilerde hamstring- bel grubu esnekliği ve sıçrama performansı, onların kalça kuvvetlerini destekleyici motorik parametrelerdir.

Anahtar Kelimeler

• Çeviklik
• Esneklik
• İzokinetik kalça kuvveti
• Sıçrama
• Tenis

Investigation of Motor Characteristics Associated with Isokinetic Hip Strength in Tennis Players

Abstract

Altered hip kinematics due to muscle weakness in the hip can cause dynamic instability of the entire kinetic chain of the lower extremities. While this situation negatively affects tennis-specific performance, on the other hand, it may increase the injury tendency of the athletes during repetitive activities performed in practice. In this study, it was aimed to determine the agility, vertical jump, flexibility, and isokinetic hip strength of elite tennis players and to determine the motor characteristics associated with isokinetic hip strength. The study was conducted with the voluntary participation of 15 male elite tennis players aged 16-20. After determining the height, body weight and body mass index characteristics of the athletes, isokinetic hip strength, T agility test performances, sit-reach flexibility test levels and vertical jump performances were examined. In the next step, the relationship between isokinetic hip strength and jump, agility, and flexibility performances at angular velocities of 60o/sec, 180o/sec and 240o/sec were examined. The results showed that there was a significant relationship between the isokinetic hip peak torque levels of the athletes and their flexibility and jumping performances, but the relationship between their agility performances was not significant. As a result, hamstring-waist group flexibility and jump performance are motoric parameters that support their hip strength in elite tennis players.

Keywords

• Agility
• Flexibility
• Isokinetic hip strength
• Jumping
• Tennis

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