The study of relative age effects on weightlifting athletes in U-15 and youth age groups

Within the sporting scope, relative age effects refer to possible advantages of participation and performance athletes born in first months year selection relation others within same groups. The aim this study was investigate by comparing different body weight categories Under 15 (U-15) youth group (males females) weightlifting. By using retrospective competition data from Turkish Weightlifting Federation database, a total 954 Olympic-style weightlifters (U15 Youth groups), 605 males 349 females), who competed Championships between 2018 2019, were included study. on birthdates divided into four quarters. three subset classes. analyzed chi-square test. In males, determined lightweight under (χ²(3)= 10.00, p< .05), 10.83, middleweight category 14.09, .01) heavyweight 12.96, .01). However, not present female (p>.05). It can be stated that weightlifting athletes, groups (except quarter have higher chance success athletic performance.