Farklı Yüklenme Şiddetlerinde Yapılan Copenhagen Adduksiyon Egzersizinin Kalça Kas Kuvvet Gelişimi, Gecikmiş Kas Ağrısı ve Alt Ekstremite Fiziksel Uygunluk Parametrelerine Etkilerinin Karşılaştırılması

Abstract

The aim of this study was to compare the effects of Copenhagen adduction exercise (CAE) at different loading intensities, included in the routine training program, on hip muscle strength improvement; adductor muscle flexibility and jumping performance in adolescent taekwondo athletes. The athletes included in the study were divided into two groups as modified CAE group (n=40) and classic CAE group (n=58). The exercise training was incorporated into the routine training program for both groups for 8 weeks, twice a week. While the classic CAE training was applied dynamically for 8 weeks, the modified CAE training was applied isometrically for the first 5 weeks and dynamically in the following weeks.13 athletes in the modified CAE group (mean age 15.69±1.03 years) and 13 athletes in the classic CAE group (mean age 15.46±1.33 years) completed the study. Measurements were performed at baseline, at 4th week, at 8th week and at 16th week (follow-up). Isometric and eccentric muscle strength of the hip abductors and adductors were measured with a manual hand-held dynamometer; adductor muscle flexibility was measured with a universal goniometer; lower extremity jumping performance was assessed with timed lateral hop and single leg forward hop tests. As a result of the study; it was found that both exercise trainings improved isometric and eccentric hip adductor muscle strength (p<0.008). The hip eccentric adductor strength improvement was higher in the classic CAE group (p<0.05). There was no effect of CAE training on hip adductor muscle flexibility (p>0.008). It was also found that lateral and forward jump performance improved over time in the classic CAE group (p<0.008). Delayed muscle soreness level was higher in the classic CAE group at the 5th week (p=0.021) and at the 8th week (p=0.001). Perceived exertion level was higher in the classic CAE group (p<0.05). In conclusion, for adolescent taekwondo athletes, CAE training is recommended to be performed dynamically for 8 weeks for performance improvement and to achieve advanced eccentric strength improvement in the hip adductors. There is a need for studies to investigate the effects of CAE training on functional performance in different sports.