Yazar "Jorgic, Bojan M." seçeneğine göre listele

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    Physical performance predictors in youth breaststroke swimming: motor and biomotor diagnostic differences
    (Bmc, 2025) Karadenizli, Zeynep Inci; Ilbak, Ismail; Jorgic, Bojan M.; Bartik, Peter; Sagat, Peter
    Swimming performance in youth athletes is influenced by a complex interplay of physical, motor, and physiological factors. Among competitive swimming strokes, breaststroke is technically demanding and requires precise coordination, balance, and strength. Understanding which specific motor and biomotor components most strongly predict performance in young swimmers can help coaches and sports scientists design more targeted training and talent identification programs. This study aimed to investigate whether statistically significant differ-ences exist in motor and biomotor characteristics between child swimmers with high and low performance levels in breaststroke swimming. A comparative cross-sectional study design was employed. The sample consisted of 58 child swimmers (age: 11.55 +/- 1.35) who regularly participated in swimming training. Based on their 50-meter breaststroke times, participants were divided into high- and low-performance groups. Motor and biomotor performance levels were assessed using variables such as reaction time, balance, flexibility, agility, hand grip strength, vertical jump height, and 30-meter sprint time. Arm span was also measured as an anthropo-metric parameter, and intergroup comparisons were conducted accordingly. The findings revealed that higher-performing swimmers exhibited statistically signifi-cant differences in certain motor and biomotor traits compared to their low-er-performing peers. Specifically, agility, vertical jump height, balance, and arm span emerged as potential performance determinants closely aligned with the technical re-quirements of breaststroke swimming. These results suggest that specific motor and biomotor parameters particularly agility, vertical jump, balance, and arm span are key discriminators of breaststroke performance. Therefore, training pro-grams should be designed to enhance neuromuscular coordination, reactive strength, and postural control. Additionally, anthropometric factors such as arm span should be considered in talent identification processes. Targeted development of these attributes may contribute to performance optimization in young swimmers.
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    The Relationship Between Anthropometric Characteristics, Chronological Age, and Training Age with Speed, Agility, and Explosive Power in Handball Players
    (Mdpi, 2025) Karadenizli, Zeynep Inci; Ilbak, Ismail; Jorgic, Bojan M.; Onu, Ilie; Coman, Madalina-Gabriela; Iordan, Daniel-Andrei
    (1) Background: Research examining the combined influence of anthropometric characteristics, chronological age, and training age on motor performance in handball is limited. Given the sport's demands and the participation of both adolescent and adult athletes, understanding these relationships is essential for talent identification, personalized training, and long-term athlete development. This study aimed to explore how these variables affect motor performance indicators such as speed, agility, and explosive power. (2) Methods: A cross-sectional study was conducted involving 29 male handball players. Anthropometric data (height and body weight), chronological age, and training age were collected. Motor performance was assessed using a 30 m sprint, a vertical jump test, and an agility test. (3) Results: Chronological age showed a strong positive correlation with training age (r = 0.819), and moderate correlations with height, body weight, vertical jump, agility, and sprint time. Training age was moderately correlated with vertical jump (r = 0.465) and agility (r = 0.439). Height and body weight were positively associated with sprint time. BMI exhibited low but consistent correlations with all motor tests. Regression analysis revealed that height significantly predicted sprint performance (beta = 0.401, p = 0.033), while BMI was not a significant predictor. No significant regression models were found for agility or vertical jump performance. (4) Conclusions: The results suggest that both chronological and training age influence certain aspects of motor performance in handball players. Height may serve as a useful predictor of sprint ability, but anthropometric indicators such as BMI appear insufficient for explaining performance in agility or explosive power tasks. These findings support the use of multidimensional and individualized approaches in athletic assessment and training design.