A systematic review and cluster analysis approach of 103 studies of high-intensity interval training on cardiorespiratory fitness.
Cristina Cadenas-SanchezRuben Fernández-RodríguezVicente Martínez-VizcaínoNicolás de Los Reyes GonzálezCarl J LavieAlejandro Galán-MercantDavid Jiménez PavónPublished in: European journal of preventive cardiology (2023)
All three HIIT modalities produced significant improvements of CRF, although some modalities showed greater changes for some specific age groups or intensity indicators.
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