GENÇ FUTBOL OYUNCULARININ OKSİJEN TÜKETİMİ KİNETİKLERİNİN MEVKİLERİNE GÖRE KARŞILAŞTIRILMASI

Yıl 2017, Cilt: 2 Sayı: 1, 102 - 112, 01.04.2017

Erdal Arı Hamit Cihan İbrahim Can Bahadır Demir

Öz

Bu çalışmanın amacı genç futbol oyuncularının oksijen tüketimi kinetikleri ile solunum eşiği değerleri arasındaki
ilişkiyi belirlemek ve oyuncuların mevkilerine göre oksijen tüketimi kinetikleri ve solunum eşiği değerlerini
karşılaştırmaktır. 23 genç futbol oyuncusu gönüllü olarak çalışmaya katılmıştır (n = 23, yaş: 19.8±0.4 yıl, boy
uzunluğu: 179.4±7.2 cm., vücut ağırlığı: 74.2±7.4 kg., VO2max: 59.7±8 ml/kg/dk.). Maksimum oksijen tüketimi
(VO2max) ve solunum eşiği değerleri, koşu bandında uygulanan ve koşu hızı giderek artan test protokolüyle
belirlenmiştir. Daha sonra VO2max değerine tekabül eden koşu hızında test uygulanmıştır ve oksijen tüketim
kinetiği değerleri mono-exponentinal model yardımıyla belirlenmiştir. VO2max değerinin % 95’ine ulaşılan süre
ve VO2max değerinde geçirilen süre, oksijen tüketimi kinetikleri olarak kabul edilmiştir. VO2max değerinin %
95’ine ulaşılan süre, VO2max değerinde geçirilen süre ve solunum eşiği değerleri arasındaki ilişkiler korelasyon
analiziyle, mevkilere göre farklılıklar ise tek yönlü varyans analiziyle belirlenmiştir. VO2max değerinin % 95’ine
ulaşılan süre ile VO2max değerinde geçirilen süre arasında negatif yönlü ve anlamlı bir ilişki tespit edilmiştir (r=-
0.526, p<0.05). VO2max değerinin % 95’ine ulaşılan süre hariç olmak üzere diğer değerler bakımından
oyuncuların mevkileri arasında anlamlı farklılık görülmemiştir. VO2max değerinin % 95’ine ulaşılan süre
bakımından stoper oyuncularının kalecilerden daha yüksek değerlere sahip olduğu (p < 0.05), diğer mevkiler
arasında ise herhangi bir farklılık olmadığı belirlenmiştir. Sonuç olarak egzersizde steady-state seviyesine kısa
zamanda ulaşmanın VO2max değerinin % 95’ine ulaşılan süreyi kısaltabileceği ve VO2max değerinde geçirilen
süreyi arttırabileceği ifade edilebilir.

Anahtar Kelimeler

Oksijen tüketim kinetikleri, futbol, mevki.

THE COMPARE OF OXYGEN UPTAKE KINETICS OF YOUNG SOCCER PLAYERS ACCORDING TO PLAY POSITIONS

Öz

The purpose of this study was to compare oxygen uptake kinetics, ventilatory threshold of young soccer players
according to playing position and to determine relationship between oxygen uptake kinetics and ventilatory
threshold of young soccer players. Twenty-three young soccer players joined to study voluntarily (n=23; age:
19.8±0.4 years, body height: 179.4±7.2 cm., body mass: 74.2±7.4 kg., VO2max: 59.7±8 ml/kg/min.). The players
were categorized according to playing positions. The VO2max, ventilatory threshold were determined by
incremental treadmill test. Then, treadmill test at running velocity determined VO2max was performed and oxygen
uptake kinetics were identified by mono-exponentinal model. The time to achieve 95% of VO2max, spending time
at VO2max were accepted as oxygen uptake kinetics. The correlation among time to achieve 95% of VO2max,
spending time at VO2max and ventilatory threshold values of young soccer were determined by correlation anlyze
and differences according to playing positions were identified by one-way analysis of variance. It was determined
significiant negative correlation between time to achieve 95% of VO2max and spending time at VO2max (r=-0.526,
p<0.05). The no significiant difference among playing positions was found without time to achieve 95% of
VO2max. The centerbacks had higher time to achieve 95% of VO2max values than goalkeepers (p<0.05) but no
significiant difference among other playing positions was found (p>0.05). Consequently, it could be said that
reaching to steady-state level early during exercise could shorten time to achieve 95% of VO2max and increase
spending time at VO2max

Anahtar Kelimeler

Oxygen uptake kinetics, soccer, play position.

Kaynakça

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