Turkiye Klinikleri Journal of Sports Sciences

.: ORIGINAL RESEARCH
Profesyonel Futbolcuların Mevkilerine Göre Rölatif İzokinetik Kas Kuvvetlerinin Karşılaştırılması
Comparison of Relative Isokinetic Muscle Strengths According to the Positions of Professional Soccer Players
Murat AKYÜZa, Özkan IŞIKb, Öznur AKYÜZa, Yeliz DOĞRUc, Nuretdin MEMURc
aManisa Celal Bayar Üniversitesi Spor Bilimleri Fakültesi, Antrenörlük Eğitimi Bölümü Hareket ve Antrenman Bilimleri ABD, Manisa, TÜRKİYE
aBalıkesir Üniversitesi Spor Bilimleri Fakültesi, Antrenörlük Eğitimi Bölümü, Balıkesir, TÜRKİYE
cİzmir Kâtip Çelebi Üniversitesi Sağlık Kültür ve Spor Daire Başkanlığı, İzmir, TÜRKİYE
Turkiye Klinikleri J Sports Sci. 2020;12(3):296-302
doi: 10.5336/sportsci.2020-75330
Article Language: TR
Full Text
ÖZET
 Amaç: Bu çalışmanın amacı, bir profesyonel futbol takımında yer alan futbolcuların, oyun pozisyonlarına göre rölatif izokinetik kas kuvvetlerinin karşılaştırılmasıdır. Gereç ve Yöntemler: Araştırmaya, 2019- 2020 Türkiye Futbol 1. Lig sezonunda Akhisarspor Futbol Kulübünde yer alan futbolcular (n=20) katılmıştır. Futbolcuların, rölatif izokinetik kas kuvvetleri 60 ve 300°/sn'de IsoForce izokinetik dinamometre ile ölçülmüştür. Verilerin normallik sınaması, Shapiro-Wilk testi ile test edildi. Normal dağılım göstermeyen verilerin analizinde, ikili karşılaştırmaları için Mann-Whitney U testi kullanıldı. Çoklu karşılaştırmalar için KruskalWallis H testi kullanıldı. Gruplar arası farkın tespiti için 'Pairwise Multiple Comparison Test' kullanıldı. Bulgular: Araştırma bulgularına göre futbolcuların, 60 ve 300°/sn fleksiyon ve ekstansiyon, maksimum ve ortalama kuvvet değerlerinin hem baskın hem de baskın olmayan bacak için istatistiksel olarak farklı olmadığı tespit edilmiştir. Ek olarak, futbolcuların mevkilerine göre 60 ve 300°/sn fleksiyon ve ekstansiyon maksimum kuvvet değerleri arasında istatistiksel olarak fark olmadığı tespit edilmiştir. Ayrıca futbolcuların mevkilerine göre fleksiyon 300°/sn ve ekstansiyonda 60 ve 300°/sn rölatif ortalama kuvvet değeri arasında, hem baskın hem de baskın olmayan bacakları için istatistiksel olarak fark olmadığı tespit edilmiştir. Ek olarak, futbolcuların fleksiyon 60°/sn baskın bacakları arasında da istatistiksel olarak fark olmamasına rağmen baskın olmayan bacakları arasında istatistiksel olarak fark olduğu tespit edilmiştir (p>0,05; p=0,012). Bu sonuca göre forvetlerin 60°/sn baskın olmayan bacaklarının, defans ve orta saha oyuncularına göre daha yüksek medyan değerine sahip olduğu tespit edilmiştir. Sonuç: Profesyonel futbolcuların mevkilerine göre yalnızca baskın olmayan bacak 60°/sn fleksiyon rölatif ortalama kuvvet değerlerinin farklı olduğu, diğer ortalama kuvvet değerlerinin ve maksimum kuvvet değerlerinin farklı olmadığı tespit edilmiştir. Bu sonucun, forvetlerin defans ve orta saha oyuncularına nazaran nondominant bacaklarını daha sık kullanmalarından kaynaklanabileceği düşünülebilir.

Anahtar Kelimeler: Ekstansiyon; fleksiyon; profesyonel futbolcular; rölatif izokinetik kas kuvveti; diz kuvveti
ABSTRACT
 Objective: The aim of this study was to compare the relative isokinetic muscle strengths of professional soccer players according to their game positions. Material and Methods: Soccer players (n=20) of Akhisarspor located in the Turkey Football 1st League participated in this study. Isokinetic muscle strengths of soccer players were measured with IsoForce isokinetic dynamometer at 60 and 300°/sec. The normality test of the data was tested with the Shapiro-Wilk test. Mann-Whitney U test was used for pairwise comparisons in the analysis of non-normally distributed data. Kruskal-Wallis H test was used for multiple comparisons. Pairwise Multiple Comparisons Test was used to determine the source of difference between the groups. Results: According to the findings of the research, it was determined that the peak and average strength values of the soccer players at 60 and 300°/sec flexion and extension were not statistically different for both the dominant and non-dominant legs. In addition, it was determined that there was no statistically difference between the flexion and extension peak strength values of 60 and 300°/sec according to the positions of the soccer players. Moreover, it was determined that there was no statistically difference between both the dominant and non-dominant legs between flexion 300°/sec and the relative average strength value of extension 60 and 300°/sec according to the game positions of the soccer players. In addition, although there was no statistically difference between the flexion dominant legs of soccer players at 60°/sec (p>0.05), there was a statistically difference between the non-dominant legs (p=0.012). According to this result, it was found that the non-dominant legs of the strikers at 60°/sec had a higher median value than the defender and midfielder players. Conclusion: It was determined that according to the positions of professional soccer players, only non-dominant leg 60°/sec flexion relative average strength was different, other average and peak strength values were not different. This result may be due to the strikers using their non-dominant legs more often than the defenders and midfielders.

Keywords: Extension; flexion; professional soccer players; relative isokinetic muscle strength; knee strength
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