The purpose of this study was to investigate the effects of increased barbell loads on barbell and body kinematics of the snatch lifts at 60, 80, and 100% of 1 repetition maximum and to evaluate the biomechanics of snatch technique. The study was performed on 7 elite male weightlifters of the Turkish national team. Four cameras operating at 50 fields per second were used to record the lifts. For 3D kinematic analysis of center of gravity (CG) and barbell movement, the points on the body and the barbell were digitized by using an Ariel Performance Analysis System. There were significant differences between the vertical work values (p < 0.05). The power values of the 3 snatch lifts were also found to be significantly different (p < 0.05). Another significant difference (p < 0.05) was observed between maximum vertical displacement of the barbell, maximum vertical velocity of the barbell, maximum vertical displacement of CG, the vertical velocity of CG during the turnover under the barbell. The results demonstrated that vertical and horizontal kinematics of the barbell and body decreased at the pull phase of the snatch technique as the barbell load increased. The power output during the second pull increased although the work done did not change, whereas work and power output increased during the first pull phase depending on the increase in the barbell weight. The finding of this study suggested that weightlifters had to perform the turnover under the barbell and the catch phase faster, because when the barbell weight was increased at snatch lift, vertical kinematics of the barbell decreased.

There are many features that athletes must have in order to be successful in futsal. One of these features is agility based on rapid and sudden change of direction. This study was conducted to examine the agility of futsal players playing in different positions (goalkeeper, defense and attack) and to analyze their responses to different agility tests. The research data were obtained by subjecting indoor soccer players playing in the Universities Futsal League to agility tests and revealing their answers at the end. 30 futsal players playing in the Turkish Universities Futsal League, with an average age of 21.57±1.97 years, participated in the research voluntarily. Pro-Agility Test, 505 and Zig Zag agility tests were used to determine agility characteristics. Futsal players participating in the research, Pro-Agility agility test values 4.56±0.29 sec, 5 0 5 agility test values 2.33±0.18 sec, Zigzag agility test values with the ball 8.33±0.39 sec and without the ball Zigzag agility test values were found to be 6.44±0.31 sec. When futsal players’ answers to different agility tests are compared according to their positions; In all tests, it was determined that the players playing in the offensive zone had the best agility test values; Statistically significant differences were found in the values of Pro-Agility test, 505 agility test, zig-zag test with and without the ball (p&lt;0.05). As a result; In futsal, where there are many rapid and sudden changes in direction, the agility of the players is considered very important for the players in all positions. It can be said that the agility feature of futsal players is in good condition regardless of position, regular measurement of agility features with and without the ball, including studies to improve the agility feature in the trainings, are some very important criteria for the athletes to reach the desired performance level.