I’ve always been pretty skeptical of viral TikTok workouts like the 12-3-30 workout. They can be created by anyone with an account, after all, so their merits aren’t usually backed by science. But the ...
The 25-7-2 Stairmaster workout is the next 12-3-30 workout. You heard it here first. In the same way that the 12-3-30 trend uses just one machine, so does the 25-7-2 workout: the Stairmaster, and ...