1. Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
2. Department of Natural and Applied Sciences, Bentley University, Waltham, MA, USA
3. Department of Kinesiology, University of Wisconsin Madison, Madison, WI, USA
4. Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
5. Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, Alberta, Canada