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

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.