The Effects of Eccentric-Dominant Training on Balance and Postural Stability

Öz

Aim: The aim of this study is to investigate the effects of a novel training approach called Augmented Repetitive Eccentric Loading (AREL) in which the eccentric contraction phase is performed with a greater number of repetitions compared to the concentric phase on balance performance. Method: Twenty participants aged between 18 and 23 were divided into three groups: isotonic training group (ISO), increased repetition eccentric training group (ECC+), and control group (CONT). Over an eight-week period, the ECC+ group performed additional eccentric repetitions beyond traditional strength training protocols, while the ISO group followed conventional isotonic training methods. Balance performance was assessed using the Biodex Balance System SD, which measures medial-lateral, anterior-posterior, and overall stability indices. Results: The ECC+ group showed significant improvements in anterior-posterior (p=0.01) and overall stability (p=0.01) compared to the other groups. No statistically significant changes were observed in the ISO and CONT groups. These findings suggest that the AREL method may be more effective than traditional strength training in enhancing balance performance. Conclusion: This study highlights the potential of the AREL method as an innovative approach for improving dynamic balance in athletes. Incorporating eccentric overload strategies into training programs may help optimize performance and reduce the risk of injury.

Anahtar Kelimeler

• Augmented repetitive eccentric loading
• balance performance
• eccentric strength

Eksantrik-Dominant Antrenmanın Denge ve Postüral Stabilite Üzerindeki Etkileri

Öz

Amaç: Bu çalışmanın amacı, eksantrik kasılma fazının, konsantrik kasılma fazına kıyasla daha fazla sayıda tekrar ile uygulandığı ve Artırılmış Tekrarlı Eksantrik Yüklenme (AREL) olarak adlandırılan yeni bir antrenman yaklaşımının denge performansı üzerindeki etkisini incelemektir. Gereç ve Yöntem: Çalışmaya yaşları 18–23 arasında değişen yirmi katılımcı dâhil edilmiş ve bu bireyler izotonik antrenman grubu (ISO), artırılmış tekrarlı eksantrik antrenman grubu (ECC+) ve kontrol grubu (CONT) olmak üzere üç gruba ayrılmıştır. Sekiz hafta süresince ECC+ grubu, geleneksel kuvvet antrenman protokollerine ek olarak ilave eksantrik tekrarlar gerçekleştirmiş, ISO grubu ise standart izotonik antrenman yöntemlerini uygulamıştır. Denge performansı, medial-lateral, anterior-posterior ve genel stabilite endekslerini ölçen Biodex Denge Sistemi SD ile değerlendirilmiştir. Bulgular: ECC+ grubunun anterior-posterior (p=0,01) ve genel stabilite (p=0,01) parametrelerinde diğer gruplara kıyasla anlamlı düzeyde iyileşme gösterdiği saptanmıştır. ISO ve CONT gruplarında ise istatistiksel olarak anlamlı bir değişiklik gözlenmemiştir. Bu bulgular, AREL yönteminin denge performansını artırmada geleneksel kuvvet antrenmanlarına göre daha etkili olabileceğini göstermektedir. Sonuç: Elde edilen sonuçlar, AREL yaklaşımının sporcularda dinamik dengeyi geliştirmeye yönelik yenilikçi bir yöntem olma potansiyeline sahip olduğunu ortaya koymaktadır. Eksantrik aşırı yüklenme stratejilerinin antrenman programlarına dâhil edilmesi hem performansın optimize edilmesine hem de yaralanma risklerinin azaltılmasına katkı sağlayabilir.

Anahtar Kelimeler

• Arttırılış tekrarlı eksatrik yüklenme
• Denge performansı
• Eksantrik kuvvet

Kaynakça

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