The 12-3-30 is a treadmill workout that's harder than it looks. Some people might prefer it to running, but it's no magic ...
Okay, you bought a treadmill a few months back and here it is, late March, and your routine is stale. That once-sleek, addictive toy has become the Dreadmill. Here's your ticket off the plateau.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback