Прегледај по Аутор "Eler, Nebahat"

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    Differences between vertical jumps in elite female volleyball players. Reasons for lack of differences
    (University School of Physical Education, Poland, 2024) Joksimović, Marko; D’angelo, Stefania; Eler, Nebahat; Karišik, Siniša; Zlojutro, Nemanja; Latino, Francesca; Tafuri, Domenico
    Introduction. Squat jumps (SJ) and countermovement jumps (CMJ) are commonly used as tests to assess power output of lower extremities. Aim of Study. The aim of this article was to analyze differences between two vertical jumps in order to assess explosive power in elite female volleyball players and identify mechanisms responsible for existence of those differences. Material and Methods. Participants of this study were 14 elite female volleyball players of the Montenegro U19 national team (age: 18.42 ± 1.34 years; height: 178.15 ± 4.9 cm; weight: 68.1 ± 5.83 kg; body mass index: 21.34 ± 1.10 kg/m2; body fat: 18.89 ± 3.70%). Jump height data for a SJ and a CMJ was obtained using OptoJump device (Optojump, Microgate, Bolzano, Italy). Results. The results showed that there is no statistically significant difference (F = 0.093, p < 0.124) between the heights of the SJ (26.64 ± 2.93 cm) and the CMJ (26.65 ± 2.85 cm). Conclusions. The findings suggest that elastic energy has very little effect on improving CMJ performance. On the other hand, CMJ training can reduce an ability to effectively create pre-tension and quickly build stimulation, because athletes are not forced to do so, as the CMJ reduces a degree of muscle relaxation and provides more time to create stimulation. Based on the data, the CMJ may be detrimental to high-intensity sports performance if performed over a longer time frame.
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    The Influence of Morphological Characteristics on the Ball Throwing Velocity in the Professional Handball Players
    (Universidad de la Frontera, 2023) Goranovic, Kosta; Petkovic, Jovica; Joksimovic, Marko; Karisik, Sinisa; Eler, Nebahat
    The aim of this study was to determine influence of upper limbs on the ball throwing velocity. A total of 10 professional handball players (25.74±4.84 years) participated in this study. All of them were playing in the top Montenegrin professional handball league. The results obtained in this study shows that upper limbs have high influence on ball throwing velocity. This study provides normative data and performance standards for professional handball. Coaches can use this information to determine the type of anthropometric characteristics that are needed for handball. Anthropometric parameters such as arm length, wrist diameter, hand length and arm span are the most relevant aspects related to ball throwing speed, given that these parameters cannot be changed through training, they should be taken into account when discovering talents.