AUTHOR=Gentil Paulo , Lira Claudio Andre Barbosa de , Vancini Rodrigo Luiz , Ramirez-Campillo Rodrigo , Souza Daniel TITLE=High-Intensity Multimodal Training for Young People: It's Time to Think Inside the Box! JOURNAL=Frontiers in Physiology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2021.723486 DOI=10.3389/fphys.2021.723486 ISSN=1664-042X