The Effect of Dominant Leg on Change of Direction Performance in Young Famele Football Players

Year 2024, Volume: 26 Issue: 2, 320 - 328, 31.08.2024

Ayşenur Turgut Kaymakcı , Ertuğrul Gelen , Volkan Sert

https://doi.org/10.15314/tsed.1399023

Abstract

Objectives
Over the last two decades, women's football has become increasingly established and recognised. The demands of women's football have increased significantly, with a significant development in terms of quantity, including improved fitness performances and a greater number of matches and players throughout the season. Movements in women's football consist of a large number of directional changes. In this study, the effect of dominant leg on Change of Direction (COD) performance in young female footballers was investigated.
Materials and Methods
Twenty (mean±SDage17.1±1.56 years, body weight:55.7±4.94kg, height:1.61±0.05 m) young female football players participated in the study. The players performed change of direction tests at different angles (45°-90°-135°-180°) on a 10-meter track, knee flexion (KFRS) and extension isometric strength tests (KERS), and asymmetric depth jump tests (ADJ). Athletes performed all tests with both the dominant leg (DL) and non-dominant leg (NDL). In the analysis of the data, Parametric Dependent Samples T-test statistical analysis was used to determine the differences between DL and NDL performances, and correlation analysis was performed to examine the relationships between the tests.
Results
It was observed that COD performance of female football players with DL (5-10mP=0.000-0.009,t=2.924-4.802,ES:0.44-0.59and,0-10mP=0.000-0.030t=2.351-6.757,ES:0.33-0.59) were better than the NDL. DL’s KERS (Extension=6.4%kg,t=4.947) and KFRS (Flexion=12.7% kg,t=4.406ES:0.77-0.82), ADJ contact time (CT) (CT=-16.4%(ms),t=-22.601) and flight time (FT) (FT=%17,6(ms),t=22.931ES:0.64-0.75) tests showed better performance than NDL’s. Significant relationship was found between DL KFRS and DL's 45 degrees (5-10m r=,715**0-10mr =,520*P<0.05), 135 degrees (5-10m r=,562**0-10m r=,533*P<0.05), and 180 degrees (5-10mr=,687**0-10m r =,622 ** P<0.05) COD values. Significant relationship was found between DL KERS and DL's 45 degrees (5-10m r=,566**; 0-10m r=,502*P <0.05) and 180 degrees (5-10m r=,495*,P<0.05) COD values.
Conclusions
When the findings were examined, it was determined that change of direction performance with dominant leg was better than with non-dominant leg in female football players. This is thought to be due to the DL’s ability to generate more isometric strength during COD.

Keywords

Change of Direction, Dominant Leg, Women, Performance, Strength Asymmetry

Genç Kadin Futbol Oyuncularinda Baskin Bacağin Yön Değiştirme Performansina Etkisi

Abstract

Son yirmi yılda, kadın futbolu, giderek kendine daha fazla yer bulmakta ve tanınmaktadır. Gelişmiş kondisyon performansları ile sezon boyunca daha fazla sayıda maç ve oyuncuyu içeren nicelik açısından önemli bir gelişme gösteren kadın futbolunun talepleri önemli ölçüde artmıştır. Kadın futbolunda hareketler çok sayıda yön değiştirmeden oluşmaktadır. Bu çalışmada, genç kadın futbolcularda baskın bacağın yön değiştirme (COD) performansına etkisi incelenmektir.Çalışmaya 20 (mean ± SD age 17.1 ± 1.56 years, body weight: 55.7 ± 4.94 kg, height: 1.61 ± 0.05 m) genç kadın futbolcu katılmıştır. Oyuncular 10 metrelik parkurda ve farklı açılarda (45° -90° -135° ve 180°) yön değiştirme testi, diz fleksiyon ve ekstansiyon izometrik kuvvet testi ve asimetrik derinlik sıçraması testi gerçekleştirmişlerdir. Sporcular hem baskın bacak (DL) hem de baskın olmayan bacak (NDL) ile tüm testleri uygulamıştır. Verilerin analizinde baskın bacak ve baskın olmayan bacak performansları arasındaki farkları belirlemek amacıyla Parametrik Bağımlı Örnekler T-testi istatistiksel analizi ve testler arasındaki ilişkileri incelemek için de korelasyon analizi yapılmıştır.Kadın futbolcuların baskın bacaklarının (5-10m P=0.000-0.009, t=2.924-4.802, ES:0.44-0.59 and, 0-10m P=0.000-0.030 t=2.351-6.757, ES:0.33-0.59) COD performansının baskın olmayan bacaklarına göre daha iyi olduğu gözlendi. DL'nin diz ekstansiyon bağıl gücü (KERS) ve diz fleksiyon bağıl gücü (KFRS) (P=0.00 Ekstansiyon=6.4 %kg, t=4.947 and Fleksiyon=12.7% kg, t=4.406 ES:0.77-0.82)., asimetrik sıçrama temas süresi (CT) (CT = -16.4% (ms), t=-22.601) ve havada kalma süresi (FT) (FT=%17,6 (ms), t=22.931 ES:0.64-0.75) testleri NDL'lerden daha iyi performans gösterdi. DL KFRS ile DL'nin 45 derece (5-10m r =,715**, 0-10m r=,520*, P<0.05), 135 derece (5-10m r=,562**, 0-10m r=,533*, P<0.05) ve 180 (5-10m r=,687**, 0-10m r =,622** P<0.05) derece yön değiştirme performansları arasında anlamlı ilişki bulunmuştur. DL KERS ile DL'nin 45 derece (5-10m r=,566**, 0-10m r=,502* P<0.05) ve 180 derece (5-10m r=,495*, P<0.05) COD performansları arasında anlamlı ilişki bulunmuştur.Bulgular incelendiğinde kadın futbolcularda baskın bacak ile yön değiştirme performansının baskın olmayan bacağa göre daha iyi olduğu belirlendi. Bunun, baskın bacağın yön değiştirme sırasında daha fazla izometrik güç üretme yeteneğinden kaynaklandığı düşünülmektedir.

Keywords

Yön değiştirme, Baskın bacak, Kadın futbolu, Performans, Kuvvet asimetresi

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