Cross-national CrossFit? Maybe, but a great mental workout is certain with Dr. Margaret Qinlan's new publication, a study of student appitudes (attutides about apps) in the diet/fitness category.
The brain-boosting information from the Associate Professor is here:
Cho, J. (South Korea), Lee, H. E. (South Korea), & Quinlan, M. M. (2016). Cross-national comparisons of college students’ attitudes toward diet/fitness apps on smartphones. Journal of American College Health.