AbstractBasketball is a highly popular and complex sport classified as a monostructural activity. Various anthropometric parameters determine elite performance achievement in basketball. Morphological characteristics and motor abilities have been established as the most significant predictors of basketball success. Consequently, this study aimed to determine the influence of longitudinal dimensionality on explosive strength in young basketball players. Accordingly, this study aimed to determine the impact of longitudinal dimensionality on the explosive strength of young basketball players. The sample comprised 15 cadet-level basketball players (age: 15.8 ± 0.6 years; body weight: 77.86 ± 8.37 kg; body mass index: 23.99 ± 1.01 kg/m²). The set of measurement instruments included four variables for assessing explosive strength: Standing Long Jump (LJ), 20-Meter Sprint (RUN20m), Medicine Ball Throw from Supine Position (TMBL), and Medicine Ball Throw from Seated Position (TMBS); and five variables for measuring longitudinal dimensionality: Body Height (BH), Forearm Length (FL), Upper Arm Length (UAL), Lower Leg Length (LLL), and Upper Leg Length (ULL). The impact of longitudinal dimensionality on explosive strength in young basketball players was assessed using linear regression. Statistical analyses were conducted using the IBM SPSS Statistics software (Version 20). Linear regression analysis confirmed a statistically significant impact of longitudinal dimensionality on the explosive strength of young basketball players.