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Copyright of Research in Sport Education & Sciences is the property of Ataturk University Coordinatorship of Scientific Journals and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Online Journal of Recreation & Sports is the property of Online Journal of Recreation & Sports and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Sportif Bakış: Spor ve Eğitim Bilimleri Dergisi is the property of Sportif Bakis: Spor ve Egitim Bilimleri Dergisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The aim of the study is to examine relationships between shoulder extension-flexion and internal-external rotation strength of professional male handball players with throwing velocity, and the hip extension-flexion strength with horizontal and vertical reactive strength index. Fifteen professional male handball players participating in 1 st League matches took part in the study. The results showed that isometric shoulder flexion and extension strength significantly predicted stable throwing velocity (r 2 =between 0.27-0.73) and dynamic throwing velocity (r 2 =between 0.30-0.62). In addition, isometric internal and external rotation strength significantly predicted stable throwing velocity (r 2 =between 0.32-0.54) and dynamic throwing velocity (r 2 =between 0.31-0.44). Moreover, isometric hip extension and flexion strength significantly predicted vertical reactive strength index (r 2 =between 0.31-0.45) and horizontal reactive strength index (r 2 =between 0.26-0.42). In conclusion, it was observed that shoulder strength has an enhancing effect on handball players' throwing velocity, while hip strength is a determining factor for the reactive strength index. In this context, it is assumed that shoulder weakness during throwing will affect the accuracy and velocity of throwing by disrupting the angular momentum, while weakness in the hip during the jump phase of the throwing motion will negatively affect the explosive power by limiting stabilization during landing., Competing Interests: There is no personal or financial conflict of interest within the scope of the study., (Thieme. All rights reserved.)

Background: This study aimed to ascertain the influence of somatotype structures on athletic performance among professional athletes., Methods: Twenty-eight professional athletes, comprising 14 handball players and 14 volleyball players, were enlisted as participants for this study. As per the methodology, evaluations encompassing explosive power, strength, flexibility, horizontal jump, agility, sprint, and hand-foot reaction tests were conducted. Following physiological assessments, parameters including body mass index, body fat percentage, and somatotype were computed. The impact of athletes' somatotype structures on their athletic performance was investigated employing linear regression analysis., Results: The endomorphy value serves as a negative predictor (r 2 =0.159) for explosive power, whereas the mesomorphy (r 2 =0.204) and ectomorphy (r 2 =0.379) values act as positive predictors of explosive power. Ectomorphy value negatively predicts grip strength (r 2 =0.399) and back strength (r 2 =0.214), while mesomorphy value positively predicts grip strength (r 2 =0.233) and back strength (r=0.338; r 2 =0.114). Mesomorphy value negatively predicts flexibility (r 2 =0.247), long jump (r 2 =0.311), sprint (r 2 =0.256), and reaction (r 2 =0.133), whereas ectomorphy value positively predicts flexibility (r 2 =0.225), long jump (r 2 =0.463), sprint (r 2 =0.393), and reaction (r 2 =0.208)., Conclusions: This study showed a correlation between various somatotype structures and indicators of athletic performance. Within this framework, it can be inferred that mesomorphy and ectomorphy values serve as reliable predictors of athletes' performance. Furthermore, individuals with elevated mesomorphy values may exhibit enhanced strength performance, while those with higher ectomorphy values may demonstrate superior flexibility performance. Hence, when designing training programs aimed at enhancing athletes' performance attributes, it is imperative to account for the influence of body type on such performances.

The impact of free time management and leisure satisfaction on quality of life is distinct, however, the role of satisfaction in enhancing quality of life through free time management remains uncertain. Hence, the objective of this research is to explore how leisure satisfaction acts as a mediator between free time management and the levels of quality of life among university students. Additionally, this study aims to analyse these concepts in relation to gender, age and the number of days of activity participation. Within this particular framework, a total of 213 university students willingly participated in the survey, which included the administration of the "Free Time Management Scale," "Leisure Satisfaction Scale," and "Quality of Life Scale." The analyses employed the Independent T-Test, Pearson Correlation, and Linear Regression methods. The mediating effect was analysed using Structural Equation Modelling. The study found significant relationships between gender, free time management, and life quality. There was a significant relationship between free time management, leisure satisfaction, and quality of life (p < 0.05). Leisure satisfaction partially mediated the quality of life-free time management relationship. As age and physical activity grow, males have a higher standard of living, and time allocation and quality of life improve. Furthermore, it was found that students who effectively managed their time experienced an enhanced quality of life, as evidenced by their increased satisfaction with leisure activities. Notably, the level of satisfaction with well-managed time was identified as a crucial factor in this association., (© 2024. The Author(s).)