AUTHOR=Brand Ralf , Cheval Boris 

TITLE=Theories to Explain Exercise Motivation and Physical Inactivity: Ways of Expanding Our Current Theoretical Perspective

JOURNAL=Frontiers in Psychology

VOLUME=10

YEAR=2019

URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2019.01147

DOI=10.3389/fpsyg.2019.01147

ISSN=1664-1078