Adolesan Judocularda El Kavrama Kuvveti ile Üst Ekstremite Patlayıcı Güç Performansı Arasındaki İlişki

Öz

Bu çalışmanın amacı, adolesan judocularda el kavrama kuvveti ile üst ekstremite patlayıcı güç performansı arasındaki ilişkiyi incelemek ve bu ilişkinin antropometrik değişkenlerle olan bağlantısını araştırmaktır. Bu kesitsel çalışmaya, en az iki yıl düzenli judo antrenman deneyimine sahip, 10–13 yaş aralığında 20 adolesan erkek judocu dâhil edilmiştir. El kavrama kuvveti dijital bir el dinamometresi (Takei 5401, Japonya) kullanılarak ölçülmüş, üst ekstremite patlayıcı güç performansı ise geri yönde sağlık topu atma testi ile değerlendirilmiştir. Antropometrik ölçümler boy uzunluğu, vücut kütlesi ve beden kütle indeksini içermektedir. Verilerin normalliği Shapiro–Wilk testi ile değerlendirilmiş, değişkenler arasındaki ilişkiler Pearson korelasyon analizi kullanılarak analiz edilmiştir. İstatistiksel anlamlılık düzeyi p < 0.05 olarak belirlenmiştir. El kavrama kuvveti ile sağlık topu atma performansı arasında istatistiksel olarak anlamlı bir ilişki bulunmamıştır (r = −0.015, p > 0.05). Benzer şekilde, sağlık topu atma performansı ile boy uzunluğu, vücut kütlesi veya beden kütle indeksi arasında anlamlı bir ilişki saptanmamıştır (p > 0.05). Buna karşılık, el kavrama kuvveti ile vücut kütlesi arasında güçlü pozitif bir korelasyon (r = 0.685, p < 0.01) ve beden kütle indeksi ile orta düzeyde pozitif bir korelasyon (r = 0.568, p < 0.01) tespit edilmiştir. Bu bulgular, el kavrama kuvvetinin adolesan judocularda üst ekstremite patlayıcı güç performansını doğrudan temsil etmediğini, ancak genel vücut kompozisyonu ile daha yakından ilişkili olduğunu göstermektedir. Dolayısıyla, bu yaş grubunda patlayıcı güç performansı yalnızca izometrik kavrama kuvveti ile açıklanamaz ve nöromüsküler koordinasyon, teknik beceri ve çok eklemli kuvvet üretimi gibi faktörlerden etkilenmesi muhtemeldir.

Anahtar Kelimeler

• Adolesan Sporcular
• patlayıcı güç
• el kavrama kuvveti
• judo

Relationship Between Handgrip Strength and Upper Extremity Explosive Power Performance in Adolescent Judokas

Öz

The aim of this study was to examine the relationship between handgrip strength and upper-extremity explosive power performance in adolescent judokas and to investigate the association of this relationship with anthropometric variables. This cross-sectional study included 20 adolescent male judokas aged 10–13 years, each with a minimum of two years of regular judo training experience. Handgrip strength was measured using a digital hand dynamometer (Takei 5401, Japan), while upper-extremity explosive power performance was assessed via the backward medicine ball throw test. Anthropometric measurements included height, body mass, and body mass index. Data normality was evaluated using the Shapiro–Wilk test, and relationships between variables were analyzed using Pearson correlation analysis. Statistical significance was set at p < 0.05. No statistically significant relationship was found between handgrip strength and medicine ball throw performance (r = −0.015, p > 0.05). Likewise, medicine ball throw performance showed no significant association with height, body mass, or body mass index (p > 0.05). In contrast, handgrip strength exhibited a strong positive correlation with body mass (r = 0.685, p < 0.01) and a moderate positive correlation with body mass index (r = 0.568, p < 0.01). These findings suggest that handgrip strength does not directly represent upper-extremity explosive power performance in adolescent judokas but is more closely related to overall body composition. Therefore, explosive power performance in this age group cannot be explained solely by isometric grip strength and is likely influenced by factors such as neuromuscular coordination, technical skill, and multi-joint force production.

Anahtar Kelimeler

• : Adolescent athletes
• explosive power
• handgrip strength
• judo

Kaynakça

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