Abstract
This study focuses on enhancing the training strategies for 6–8-year-old girls involved in gymnastics by incorporating diagnostic assessment tools to evaluate their physical fitness levels. The research emphasizes the importance of identifying individual motor abilities, physiological characteristics, and development rates through comprehensive diagnostics. Based on these findings, personalized training programs are developed to improve key physical qualities such as coordination, strength, flexibility, and balance. The implementation of individualized training strategies resulted in a significant improvement in the athletes’ competition performance. The study highlights the value of using diagnostics not only for monitoring but also as an integral part of the educational and training process to promote healthy development and long-term engagement in sports.