Technology-Assisted Neuromotor Training for Improving Visuomotor Reaction Performance, Change-of-Direction Quickness, and Bilateral Task Execution in Junior Handball Players

<b>Background:</b> Reaction time and coordination are key performance components in team sports such as handball, particularly during the developmental years. Integrating visual and cognitive stimuli through smart technologies has been shown to facilitate motor skill development in young athletes. <b>Methods:</b> This study evaluated the effects of a BlazePod-based training protocol on reaction time, visuomotor coordination, movement quickness, and change-of-direction performance in junior male handball players aged 12-14 years. Thirty-two athletes (mean age = 13.37 ± 0.29 years) were randomly assigned to an experimental group (n = 16), in which the traditional neuromotor/coordination block of regular practice was replaced with BlazePod-based drills three times per week for eight weeks, or to a control group (n = 16), which trained the same capacities with traditional handball-specific exercises without technology. Training frequency (3 sessions/week), session duration (90 min), and the workload of the 30 min neuromotor block were matched between groups. Motor performance was assessed using four tests: Focus Reactions, Fast Feet, Clap Challenge, and the Agility T-Test. Paired- and independent-samples <i>t</i>-tests were applied to compare pre- and post-intervention scores. <b>Results:</b> The experimental group showed significant within-group improvements in Focus Reactions (<i>p</i> = 0.002) and AgilTT_ShuffleLeft (<i>p</i> = 0.014), whereas the control group showed no improvements and a small but significant worsening in Focus Reactions. Between-group comparisons at post-test revealed significant differences in favor of the experimental group for Fast Feet (<i>p</i> = 0.036), Clap Challenge (<i>p</i> = 0.008), AgilTT_Overall (<i>p</i> < 0.001), and AgilTT_SprintBack (<i>p</i> = 0.003). <b>Conclusions:</b> The integration of BlazePod technology into handball training produced measurable improvements in reaction speed and lateral agility among junior players. These findings suggest that technology-assisted neuromotor training represents a viable training modality that can replace a traditional neuromotor block within youth handball practice while maintaining overall training dose.