RELATIONSHIPS OF LEG VOLUME, LEG MASS, ANAEROBICPERFORMANCE AND ISOKINETIC STRENGTH IN AMERICANFOOTBALL PLAYERS

Öz

The purpose of the present study was to investigate the relationship between leg volume, leg mass anaerobic performance and isokinetic knee strength in American football players. 26 American football players participated in this study voluntarily. Frustum Method was used for the determination of leg volume, leg mass was determined by the Hanavan Method and the Wingate Anaerobic Power Test (WAnT) was used for the determination of anaerobic performance. Peak isokinetic knee extension and flexion torques were determined at 60º.s-1, 150º.s-1 and 240º.s-1. Results of Pearson Product Moment correlation analysis, indicated that leg volume was significantly correlated with leg mass (r=.838; p<0.01), maximum power (r=.581; p<0.01), mean power (r=.529; p<0.01) and 60º.s-1 knee extension torque (r=.560; p<0.01). Similarly leg mass was significantly correlated with maximum power (r=.533; p<0.01), mean power (r=.636; p<0.01) and 60º.s-1 knee extension torque (r=.448; p<0.05). In addition maximum power was significantly correlated with 60º.s-1(r=.487 p<0.05), 150º.s-1 (r=.554; p<0.01) and 240º.s-1 knee extension (r=.575; p<0.01) and also with 240º.s-1 knee flexion torques (r=0.553; p<0.05) while mean power was found to be correlated with 60º.s-1 (r=.463; p<0.05), 150º.s-1 (r=.517; p<0.01) and 240º.s-1 knee extension torques (r=.496; p<0.01) and 60º.s-1 knee flexion torques (r=.-404; p<0.05). As a conclusion, the findings of the present study indicated that leg volume and leg mass play a determinant role in anaerobic performance and isokinetic knee strength was found to be an important factor in anaerobic performance of American football players

Anahtar Kelimeler

• Anaerobic performance
• Isokinetic knee strength
• Leg volume
• Leg mass

AMERİKAN FUTBOLCULARINDA BACAK HACMİ, BACAK KÜTLESİ, ANAEROBİK PERFORMANS VE İZOKİNETİK KUVVET ARASINDAKİ İLİŞKİ

Öz

Bu çalışmanın amacı Amerikan futbolcularında bacak hacmi, bacak kütlesi, anaerobik performans ve izokinetik bacak kuvveti arasındaki ilişkinin belirlenmesidir. Çalışmaya toplam 26 gönüllü Amerikan futbolcusu katılmıştır. Sporcuların bacak hacmi Frustum yöntemi ile, bacak kütlesi ise Hanavan yöntemi ile belirlenmiştir. Anaerobik performansın belirlenmesinde Wingate anaerobik güç ve kapasite testi kullanılırken izokinetik kuvvetin belirlenmesinde konsantrik diz fleksiyon ve ekstansiyon kuvvetleri 60º, 150ºve 240º’lik hızlar kullanılmıştır. Yapılan Pearson Çarpımlar Moment Korelasyonu bacak hacmi ile bacak kütlesi (r=.838; p<0.01), maksimum güç (r=.581; p<0.01), ortalama güç (r=.529; p<0.01) ve 60º diz ekstansiyon kuvveti (r=.560; p<0.01) arasında anlamlı bir ilişki olduğunu göstermiştir. Benzer bir ilişki bacak kütlesi ile maksimum güç (r=.533; p<0.01), ortalama güç (r=.636; p<0.01) ve 60º diz ekstansiyon kuvveti (r=.448; p<0.05) arasında da bulunmuştur. Ayrıca maksimum güç ile 60º (r=.487 p<0.05), 150º(r=.554; p<0.01) ve 240º diz ekstansiyon (r=.575; p<0.01) ve 240º diz fleksiyon kuvveti (r=0.553; p<0.05) arasında anlamlı bir ilişki belirlenirken ortalama güç ile 60º (r=.463; p<0.05), 150º(r=.517; p<0.01) ve 240º diz ekstansiyon kuvveti (r=.496; p<0.01) ve 60º diz fleksiyon kuvveti (r=.-404; p<0.05) arasında ilişki bulunmuştur. Sonuç olarak, çalışmadaki bulgular bacak hacmi ve kütlesinin Amerikan futbolcularının anaerobik performanslarında belirleyici bir rolü olduğunu gösterirken, anaerobik performans ve izokinetik diz kuvveti arasında belirlenen ilişkiler kuvvetin anaerobik performanstaki önemini ortaya koymaktadır

Anahtar Kelimeler

• Anaerobik performans
• İzokinetik bacak kuvveti
• Bacak hacmi
• Bacak kütlesi

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