@article{article_1712524, title={Effects of Knee Extensor Eccentric Training on Dynamic Balance and Hamstring/Quadriceps Ratio in Young Healthy Athletes}, journal={Mediterranean Journal of Sport Science}, volume={8}, pages={499–512}, year={2025}, author={Egemen, Yener and Tutar, Murat and Çağlayan, Atakan and Abanoz, Engin Işık and Yurtaydın, Yiğit and Bayrakdar, Akan}, keywords={Eksantrik, Kuvvet, Dinamik Denge, Hamstring, Quadriceps}, abstract={In this study, it was aimed to measure the effects of the isoinertial training program applied to young athletes on their dynamic balance and leg strength. 51 athletes participated in the study (n=24, Study Group (SG); n=27, Control Group (CG), while 24 athletes in SG were applied an isoinertial training program for their lower extremities in addition to warm-up programs, no additional training intervention was made to CG athletes. Within the scope of pre-post tests of both SG and CG athletes, body mass indexes, dynamic balance measurements, and Hamstring (H) and Quadriceps (Q) muscle strengths of athletes were measured using a hand-held dynamometer to determine the H/Q ratio. In the evaluation of the pre- and post-tests of the groups in line with the obtained data, no statistically significant difference was found in pre- and post-test parameters in CG athletes (p˃0.05), while statistically significant results were found in right leg H/Q (p=0.01), left leg H/Q (p=0.04), right leg Y balance (p=0.01), and left leg Y balance (p=0.04) parameters in SG athletes. (p<0.05). When the pre- and post-test differences between the groups of the athletes in the study and control groups were examined, statistically significant improvement was found in favor of the athletes in the SG, in the parameters of y-balance right leg change difference (p=0.00), y-balance left leg change difference (p=0.02), right leg quadriceps change difference (p=0.00), right leg hamstring change difference (p=0.00), left leg quadriceps change difference (p=0.04), and left leg hamstring change difference (p=0.01), while no statistically significant change was found between the change differences between the groups in the left leg and right leg H/Q ratios (p˃0.05). In conclusion, eccentric training is particularly effective on the hamstring muscle group, but it is also effective on the quadriceps muscle group.}, number={3}, publisher={Hasan ŞAHAN}