AUTHOR=Salvi Alexandra , Maues De Paula André , Lévy Nicolas , Attarian Shahram , Bartoli Marc TITLE=Commentary: Long-Term Exercise Reduces Formation of Tubular Aggregates and Promotes Maintenance of Ca2+ Entry Units in Aged Muscle JOURNAL=Frontiers in Physiology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2021.663677 DOI=10.3389/fphys.2021.663677 ISSN=1664-042X