Yön değiştirme ile kuvvet, denge ve sürat arasındaki ilişkinin cinsiyete göre incelenmesi

Abstract

ESER, M.C., Investigation of The Relationship Among Change of Direction Speed, Strength, Balance and Speed According to Gender, Hacettepe University Institute of Health Sciences, M.Sc. Thesis in Sport Sciences and Technology Program, Ankara, 2019. This study was designed to investigate the relationship among change of direction speed (CODS), strength, balance and speed according to gender. A total of 59 athletes, 29 women and 30 men, participated in this study voluntarily. CODS performances were determined by 505, T-test and Illinois COD tests while strength was evaluated by isokinetic knee extension (KES) and flexion (KFS) strength tests at 60º /sec and 180º /sec. For determination of explosive and elastic strength squat (SJ) and countermovement jump (CMJ) tests and elastic strength index (ESI) were used. Balance of the participants was determined by overall stability index (OSI) and limits of stability (LOS) tests and sprint performance was evaluated by 10m and 30m sprint tests. Relationships among CODS and strength, balance and sprint in women and men were determined by Pearson's correlation coefficient. When significant correlations were found in both gender at the same variable, z-transformation was used for the determination of the difference among the correlation coefficients. In men no significant correlations were found between CODS and KFS and KES at 60º/sec angular velocity (p>0,05). In women significant correlation was only found between 505 test and KFS at 60º/sec angular velocity (p<0,05). At 180º/sec, significant correlation was only found between 505 test and KFS in women while in men significant correlation was only found between Illinois test and mean flexion power (p<0,05). In women significant relationship was found among SS and CMJ and CODS of all tests (p<0,05). In spite of this in men significant correlations was found among SS and CMJ and T-test and Illinois tests (p<0,05). In correlations among COD and SS and CMJ, no significant difference was found between men and women (p>0,05). ESI was only significantly correlated with T-test in women (p<0,05). For both gender no significant correlations were found among COD and balance variables (p>0,05). In both men and women significant correlations were found among CODS and 30m sprint time, while 10m sprint time was only correlated with CODS in women (p<0,05). For 30m sprint time, these correlations were found to be similar for both gender (p>0,05) except Illinois test in which significant difference was found between men and women (p<0,05). The results of the present study indicated that CODS was associated with explosive power and sprint performance however was not correlated with maximal strength and balance. In addition the results also showed that variables which were associated with CODS was independent of the gender. Keywords: Change of direction speed, Strength, Isokinetic strength, Balance, Speed, Gender difference