Comparison of Anxiety and Narcissism Levels of Different Performance Groups in Female Handball Players.

Objective: This study aimed to compare the anxiety and narcissism levels of different performance groups in female handball players. Methods: A total of 59 athletes between the ages of 15 and 37 participated in the study, taking the first 4 places from the Turkish Republic of Northern Cyprus senior women handball 1st league in the 2017-2018 season. Wingate peak power (WPP), Wingate average power (WAP), handball agility test (HAST), 10 m speed (10S), 20 m speed (20S), 20m shuttle run (SR), hands on waist vertical jump (HEVJ), hands free vertical jumping (HFVJ) test, Beck anxiety scale (BAI), 5-factor narcissism scale-short form (FFNI-SF), and sociodemographic data form were used. The athletes were divided into upper performance (UPG) and lower performance groups (LPG) using the median value according to the results of the physical measurement tests (FST). Results: It was determined that the anxiety level of the participants in the LPG group was higher than that in the UPG group. The narcissism level of the participants in the UPG group was found to be higher than that in the LPG group. The scores of consent seeking, arrogance, leader/authority, insecurity, claiming rights, exhibitionism, carelessness, lack of empathy, and adventurousness were higher than LPG. In the correlation analysis, a positive and low level of relationship between anxiety and 20S and a negative and low level of significant relationship between HEJV were found. It was observed that there was a positive and low level significant relationship between narcissism and WPP, HFJV, and HEJV. It has been revealed that anxiety and narcissism variables have a predictive effect on the physical performance average score. Conclusion: The findings suggest that in female handball players, high levels of narcissism may affect the performance positively and high anxiety levels negatively. As a result of this study, it was revealed that anxiety and narcissism have a predictive effect on physical performance average score in women's handball.

Kinematic and EMG activities during front and back squat variations in maximum loads.

The aim of this study was to compare the musculature activity and kinematics of knee and hip joints during front and back squat with maximal loading. Two-dimensional kinematical data were collected and electromyographic activities of vastus lateralis, vastus medialis, rectus femoris, semitendinosus, biceps femoris, gluteus maximus and erector spinae were measured while participants (n = 12, 21.2 ± 1.9 years old) were completing front and back squat exercises with maximum loading. Paired sample t-test was used for comparisons between two techniques. Results showed that the electromyographic activity of vastus medialis was found to be greater in the front squat compared to the back squat during the ascending phase (P < 0.05, d = 0.62; 95% CI, -15.0/-4.17) and the whole manoeuvre (P < 0.05, d = 0.41; 95% CI, -12.8/-0.43), while semitendinosus (P < 0.05, d = -0.79; 95% CI, 0.62/20.59) electromyographic activity was greater in the back squat during the ascending phase. Compared to the front squat version, back squat exhibited significantly greater trunk lean, with no differences occurring in the knee joint kinematics throughout the movement. Results may suggest that the front squat may be preferred to the back squat for knee extensor development and for preventing possible lumbar injuries during maximum loading.