angielski > polski Marketing Medycyna: opieka zdrowotna

2° THE FAB FOUR: The second routine in the Level 1 introductory series acquaints you with the 4:1 work-to-rest ratio, meaning your work time is four times as long as your rest time. The 4:1 work-to-rest ratio is used frequently across all levels because it challenges you to work at your maximal heart rate for a short but intense burst.