The Scientific Basis of Interval-Speed Training Methods for Improving Start Velocity and Strike Power in Young Volleyball Players

This study examines the effectiveness of interval-speed training methods in developing start velocity and strike power among young volleyball players. The research focuses on the neuromuscular mechanisms that support rapid acceleration, explosive movement, and high-intensity striking actions. A specially designed interval-speed program was implemented over several weeks, incorporating short-distance acceleration drills, high-intensity intervals, and sport-specific striking exercises. Performance indicators such as start reaction time, 5-10 m sprint velocity, and spike force were measured before and after the intervention. The findings demonstrate that interval-speed training significantly enhances movement efficiency, accelerates neuromotor activation, and improves power generation during offensive actions. These results provide a scientifically grounded approach for coaches seeking to optimize physical preparation strategies for young volleyball athletes.