우수 및 비우수 역도선수의 경기력 결정요인 예측 = Prediction of Performance Determinants in Weightlifters with Different Performance Levels

다국어 초록 (Multilingual Abstract)

This study aimed to identify key performance determinants in male high school weightlifters with proven success in domestic-level competitions by analyzing body composition, basic physical fitness, and functional muscular performance. Based on competition results and expert evaluations, participants were divided into superior (n = 10) and inferior (n = 14) groups. Analyses included body composition (BMI, body fat percentage, lean mass), strength and endurance factors, motor coordination, and functional performance (isokinetic strength of the lower limbs and lumbar region, anaerobic power). Superior athletes showed significantly greater lower-limb strength and explosive power, particularly in vertical jump, highlighting the importance of neuromuscular coordination and explosive force. Higher spinal extensor strength in this group further suggests that trunk stability and upper-lower body force transfer contribute to enhanced performance. While body composition showed some relevance, its predictive value was limited due to similar physiques within weight categories, emphasizing the greater role of technical and biomechanical factors. In conclusion, lower-body strength and power emerged as critical factors influencing performance. These findings provide a foundation for athlete selection, individualized training design, and objective, data-driven evaluation methods to support precise performance prediction in weightlifting.