AUTHOR=Damaševičius Robertas , Kim Jayoung , Dourado Victor Z. TITLE=Editorial: Use of Smartphone Applications to Increase Physical Activity and Fitness JOURNAL=Frontiers in Public Health VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2021.713306 DOI=10.3389/fpubh.2021.713306 ISSN=2296-2565