You may have noticed people talking about the viral “12-3-30″ workout on social media recently, or seen the workouts for yourself at the gym (they’ll be the people walking at a very high incline on ...

Walking treadmill workouts are an easy way to jumpstart a new fitness routine or add variety to an established one. One of the most popular routines is the 12-3-30 treadmill workout, which continues ...

Welcome to Start TODAY. Sign up for our free Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! Walking treadmill workouts are an easy way to jumpstart ...

It’s walking on a treadmill with the incline maxed out. In other words, you’ll be walking uphill. You set the incline to 12% (the highest you can go on many treadmills), the speed to 3.0 miles per ...

(NEW YORK) — If you have been in a gym recently and spotted a person walking steadily on the treadmill at a very high incline, they could be following a viral workout trend. The “12-3-30” workout, the ...

When a heat wave hits, it's time to move indoors, and doing a treadmill workout can be fun and effective. The 12-3-30 treadmill workout continues to be a favorite among workout trends since it went ...