An Investigation of the Relationship Between Isometric Leg Strength, Aerobic Capacity, and Anaerobic Power: A Cross-Sectional Study in U16 Soccer Players

Year 2026, Volume: 6 Issue: 1, 78 - 87, 27.02.2026

Birgül Arslan , Erkan Güven , Yunus Emre Aslan

https://izlik.org/JA83UZ73MD

Abstract

The aim of the study is to examine the relationship between isometric leg strength, aerobic capacity, and anaerobic power in U16 category soccer players. Twenty-five elite young male soccer players in the U16 age category (age = 15.36±0.49 years; height = 1.75±0.05 m; body weight = 63.24±6.26 kg) were included in the study. Participants took part in a total of three test sessions and one familiarization session during the study period. During the familiarization session, participants' height and body weight measurements were taken, and participants were informed about the study and the tests were supervised. The Yo-Yo test was administered in the first measurement, the RAST (Running-based Anaerobic Sprint Test) in the second measurement, and the isometric leg strength test in the third measurement. The normality analysis of the obtained data was examined using the Shapiro-Wilk test, and it was determined that the data showed a normal distribution (p>0.05). The correlation between the variables (isometric leg strength, aerobic capacity, and anaerobic power) was tested using Pearson correlation analysis. Statistical significance was accepted at p<0.05, and a 95% confidence interval (95% CI) was calculated. The research findings indicate that a positive, moderate, and statistically significant relationship was found between participants' absolute (W) and relative (W/kg) anaerobic power performance and their aerobic capacity. Another finding is that the isometric leg strength of soccer players showed a high level of statistically significant relationship with absolute anaerobic power performance, while relative anaerobic power performance showed a moderate level of statistically significant relationship. In contrast, no statistically significant relationship was found between isometric leg strength values and aerobic capacity. In conclusion, anaerobic power performance in young soccer players was found to be related to both aerobic capacity and isometric leg strength. It is recommended that coaches consider the relationships between performance parameters and design training plans accordingly to improve athlete performance.

Keywords

Soccer , Isometric leg strength , Aerobic capacity , Anaerobic power

İzometrik Bacak Kuvveti, Aerobik Kapasite ve Anaerobik Güç Arasındaki İlişkinin İncelenmesi: U16 Futbolcularda Kesitsel Bir Araştırma

https://izlik.org/JA83UZ73MD

Abstract

Araştırmanın amacı; U16 kategorisindeki futbolcularda izometrik bacak kuvveti, aerobik kapasite ve anaerobik güç arasındaki ilişkiyi incelemektir. Araştırmaya U16 yaş kategorisinde, elit genç 25 (yaş = 15.36±0.49 yıl; boy =1.75±0.05 m; vücut ağırlığı = 63.24±6.26 kg) erkek futbolcu dahil edilmiştir. Katılımcılar araştırma süresince toplamda üç test seansına ve bir uyum (familirizasyon) seansına katılmıştır. Familirizasyon seansında katılımcıların boy ve vücut ağırlığı ölçümleri yapılmıştır ve katılımcılara çalışma hakkında bilgilendirme yapılarak testler denetilmiştir. İlk ölçümde Yo-Yo testi, ikinci ölçümde RAST (Running-based Anaerobic Sprint Test) ve üçüncü ölçümde ise izometrik bacak kuvveti testi uygulanmıştır. Elde edilen verilerin normallik analizi Shapiro-Wilk testi ile incelenmiş ve verilerin normal dağılım gösterdiği belirlenmiştir (p>0.05). Değişkenler (izometrik bacak kuvvet, aerobik kapasite ve anaerobik güç) arasındaki korelasyon Pearson korelasyon analizi ile test edilmiştir. İstatistiksel anlamlılık p <0.05 olarak kabul edilmiştir ve %95 güven aralığı (95% GA) hesaplanmıştır. Araştırma bulguları; katılımcıların mutlak (W) ve relatif (W/kg) anaerobik güç performansları ile aerobik kapasiteleri arasında pozitif yönlü, orta düzeyde ve istatistiksel olarak anlamlı ilişkinin tespit edildiğini göstermektedir. Bir diğer bulgu ise futbolcuların izometrik bacak kuvvetlerinin mutlak anaerobik güç performansı ile yüksek düzeyde, relatif anaerobik güç performansı ise orta düzeyde anlamlı ilişki göstermesidir. Bunun aksine izometrik bacak kuvveti değerleri ile aerobik kapasiteleri arasında istatistiksel olarak anlamlı bir ilişki bulunmamıştır. Sonuç olarak, genç futbolcularda anaerobik güç performansının hem aerobik kapasite hem de izometrik bacak kuvveti ile ilişkili olduğu görülmüştür. Antrenörlerin sporcu performanslarını geliştirmek için performans parametreleri arasındaki ilişkiyi göz önünde bulundurması ve antrenman planlarını bu ilişkilere göre yapması önerilebilir.

Keywords

Futbol , Izometrik bacak kuvveti , Aerobik kapasite , Anaerobik güç

Ethical Statement

Iğdır Üniversitesi Bilimsel Araştırma Yayın Etik Kurulu’ndan (Karar Sayısı: 2025/50) onay alınmıştır.

Supporting Institution

Bu araştırma için herhangi bir dış finansman alınmamıştır.

Thanks

Araştırmaya katılan tüm sporculara ve ailelerine teşekkür ederiz.

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