article 2025 Influence of Biological Maturation on Training Load and Physical Performance Adaptations After a Running-Based HIIT Program in Youth Football Gonzalo Fernández-Jávega, Alejandro Javaloyes, Manuel Moya-Ramón, Iván Peña-González JournalApplied SciencesDOI10.3390/app15136974Populationyouth football players View on DOI ↗