This study was conducted to select a system of speed-strength training exercises for male volleyball athletes aged 14–15 at the Hanoi Sports Training and Competition Center. Based on the review of specialized documents, investigation of current training practices, and interviews with 40 experts, coaches, and volleyball lecturers, the study identified 36 speed-strength development exercises suitable for the physiological, psychological, and professional characteristics of young athletes. The exercise system was classified into three groups: weight and resistance exercises; plyometric and speed exercises; and volleyball-specific technical exercises associated with speed-strength development. In addition, a 12-month speed-strength training program was developed following the principles of specialization and modern periodization. The research findings indicated that the selected exercise system possessed high scientific value, practicality, and feasibility, meeting the requirements for improving speed-strength performance in young male volleyball athletes during the initial stage of sports specialization.
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Tran Hung (2008). Research on the Development of Speed-Strength in Spiking Techniques of Male Volleyball Athletes Aged 14–17. Doctoral Dissertation, Institute of Sports Science, Hanoi.