Effects of High-Intensity Interval Training (HIIT) with cognitive stimulation versus traditional HIIT on cognitive performance, glucose utilization, and distance covered in adolescent non-professional athletes: a pilot study

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Summary. Introduction. Effects of High-Intensity Interval Training (HIIT) with cognitive stimulation affect glucose metabolism and neural plasticity. However, no study has examined the chronic effects of HIIT integrated with cognitive stimuli on neuro-metabolic and cognitive adaptations. Methods. In this randomized, blind controlled pilot study, adolescent non-professional football players aged 14-18 years who were randomly assigned to two groups. Group CG was assigned traditional HIIT while Group EG had HIIT with visuo-motor stimulation. All groups underwent training three times a week for eight weeks. Evaluations comprising cognitive, physical performance and glucose consumption were scheduled for T0 and T8. Results. After 8 weeks, the EG demonstrated a significant reduction in glucose consumption compared to the CG. No significant differences were observed in distance covered or cognitive scores between groups over time. Discussion. HIIT combined with cognitive stimulation may improve glucose efficiency in adolescent athletes. These findings highlight the potential of integrating cognitive challenges into HIIT protocols to optimize both cerebral and muscular energy management.

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