MVPA moderate-to-vigorous physical activity (MVPA) “moderate” activity MVPA who.int moderate-intensity exercise Vigorous-intensity exercise metabolic equivalent moderate-intensity exercise moderate-intensity exercise Vigorous-intensity exercise moderately âmoderateâ activity âvigorousâ activity moderate-to-vigorous physical activity (MVPA) 網站 moderate-intensity exercise “vigorous” activity metabolic equivalent moderately